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                                              Pole Position with
                                               new paver range

 Record highway
 in Vietnam Page 13               Aiming high               Page 8

 gets underway with
 a fleet of 10
                                  Page 6           Your seat is
 Dynapac rollers                  in Shanghai      reserved
                                                                CLAES AHRENGART
                                                                ATLAS COPCO ROAD CONSTRuCTION EquIPMENT

    dear reader,

    Coming towards the end of 2010, for dynapac this            our new series of high-performing compact cold planers.
    marks the beginning of a new era. We are now                the new planer range has been very well received by
    launching our new pavers after years of market re-          customers and we know we have a range of real winners
    search, design and development work, production and         in terms of planing efficiency and ease of use. on the roller
    logistics planning. With the new range we believe that      side we are launching new small and smart asphalt rollers
    we have succeeded with our highly set targets; being        and there are more exciting news to look forward to when it
    able to offer our customers the very best out of two        comes to rollers during 2011.
    prestigious paver brands, combined with the latest            through my years of leading different divisions within
    innovations. in our new pavers we have utilized advan-      atlas Copco, i have never been able to offer customers
    ced technology to make the pavers easy to use and to        so many great new products in one go.
    service. through extensive feedback from customers            this and the fact that we have done our utmost to
    and field support, we have learned even more about          exceed customer requirements and expectations makes
    what it is that contractors and operators really want and   me feel very proud. after having a closer look at our new
    need in a paver.                                            products, i hope you will share my enthusiasm about the
    it is with great pleasure that we now are able to of-       new dynapac offering. read more about new pavers and
    fer you the result of our hard work and commitment to       planers in this issue of dynapac news. and of course,
    excellence.                                                 don’t miss out on the interesting stories from the field.
       but the pavers are not the only news from dynapac. in
    september we launched the last two models of dynapac
    compact planers, pl600t and pl1000t, completing

          in this issue
           the new claritY                           3          record highwaY in vietnam                    13
           streamlined sd paver range

           aiming high in shanghai                   6          sustainable gas-heated screeds               14

           Planer sisters comPlete the range 8

           qualitY assured comPaction               10

           comPactasPhalt®                          12          news & Knowledge From dYnaPac
           means durable road paving                            Publisher: Lotta Bynke Production: Communications
                                                                For more information please e-mail

     the new visibility
            with 35 models of pavers organized under two brands, dynapac realized that it needed
            to streamline its product range. the company has simplified its offering, which now
            consists of 14 models under a single brand, dynapac F-series & dynapac sd-series.

dYnaPac is comPletelY restructuring its paver product             product line was developed for additional considerations as well.
range with two new series, Dynapac F-series & Dynapac             “Another main reason for change was the pending conversion
SD-series.                                                        of the engines to new emissions standards, which will
   “So far Dynapac has offered 35 paver models under two diffe-   come into force in the coming years,” he says.
rent brands,” explains Thomas Hörnfeldt, Vice President of Ca-
pital Equipment at Atlas Copco Road Construction Equipment.       the new dynapac pavers already meet some of the
“This was perhaps a somewhat confusing mix of products            Tier IV (interim) standards and will, from 2015 onwards, also
and models. With the new series, we combine the best of both      meet the Tier IV (final) standard. Thus, the pavers from
lines in a unified product line.”                                 Dynapac are optimally prepared for the future.

the tracked paver range offers a simplified selection of 6        the new pavers also include a variety of attractive featu-
pavers in the 2,55m class. The modular design of the new          res. Volker Behrens, Product Manager, Pavers at Dynapac,
product line is uniform, although the models’ features vary in    explains some of the features that the designers paid close
terms of engine power, working width and laydown capacity.        attention to during the development of the new models:
Not only does this standardization of components reduce
the need to keep a large number of spare parts in stock, it       “it all begins with the hopper, which we placed even
speeds up the delivery of those parts and repair services for     lower in order to reduce the required tilt angle at the tipping
customers.                                                        trailers. We have chamfered the corners of the hopper inside
                                                                  and the conveyor tunnel to optimize material flow and
“the new products offer customers three key advantages:           improve the consistency of the material. The conveyor tunnel
lower costs for installation, high                                was also made bigger so that the asphalt can be transported
quality and absolute reliability,”                                as gently as possible to the screed. Our highly rigid screeds
explains Hörnfeldt. “We have                                      can be extended to up to 14 meters’ working width. That’s
made great efforts to improve                                     almost three highway tracks.”
the performance of the machines.”

new emission standards
According to Carsten Bernhardt,
Design & Development Manager
at Dynapac in Wardenburg, the
                                                                  Thomas Hörnfeldt,
                                                                  Vice President, Capital Equipment at
                                                                  Atlas Copco Road Construction Equipment.

    improved accessibility                                                paver, which is virtually in constant use here, will enter the
    Additionally, much of the development work focused on impro-          market at the beginning of 2011.
    ving ease of use. Optimal overview for the driver in all directions
    and an ergonomic design were at the heart of the initiative.          the sierring Straßenbau workmen testing the machine in the
                                                                          field are delighted with it.
    Jörg Knoblauch, in charge of after-sales/service at Dynapac,             “The paver has been running perfectly for several days,”
    points out another important feature:                                 says construction site manager Ralf Jedlitzki. “It is totally reliable
      “We have significantly improved the accessibility of routine        and quiet, and the quality of paving is very good. Bumps
    maintenance points. The engine is easily accessible from each         and short stops, which we would have to compensate for with
    side of the machine, and can even be quickly accessed from below.     the roller, have not occurred.”
    In the case of maintenance, the machine does not have to be
    dismantled, which speeds up repairs enormously.”                      after the official presentation of the new Dynapac paver pro-
                                                                          duct line in Bremen in late October, pilot series production will
    company sierring Strassenbau from Hopsten in Münsterland              continue until the end of the year, when serial production begins.
    is testing a prototype of the new Dynapac series in Lower Saxo-
    ny that has already clocked more than 250 working hours. The

          dynapac pavers
          Two versions: F version with conventional control, SD version with PLC control

          Engine power: 110 to 194 kW – high quality Cummins qSB 6.7 engines

          Laydown capacity (theoretical): 650 to 1, 100 t/h

          Screed: High-quality extendable screed with a basic width of 2.55/3.00 m for working

          Width of 2 to14 m; electrical heating system or gas heated (LPG).

                  aiming high
                 dynapac pavers and rollers helped shunjiang road engineering co.
                 ltd. meet tight schedules to complete a high-quality expo project.

    iF You have the chance to walk along the main Expo                   this is thanks in no small part to Xu’s great focus on
    road from the Expo Axis to A Zone on a rainy day, you can rest       quality and sound management. With many years’ expe-
    assured that the road will not be wet and slippery thanks to a       rience in the fields of construction and municipal engi-
    new type of road surface, OGFC, which is characterised by its        neering, he knows the meaning of quality and efficiency,
    excellent drainage properties. This is one of the few applica-       and sets high standards for both equipment and personnel
    tions of this new surface in Shanghai, after it made its debut in    from the outset.
    the North passageway of Pudong Airport.
                                                                         outside the shunjiang office area in Pudong, the fleet
    shunjiang road engineering co. Ltd. was chosen to under-             of Dynapac equipment appears to be in good condition,
    take the refurbishment of the surface of the roads inside the        clearly taken good care of by those who really appreciate
    Expo site, including 1 km of the SMA road and 1 km of the            it. “It is critical to provide good maintenance in order to
    OGFC road, as well as the VIP passageway from the middle             avoid breakdowns and get the job done,” says Xu, who
    ring road to the Houtan Entrance.                                    bought his first Dynapac, a Dynapac F141, when he foun-
                                                                         ded Shunjiang. At that time, Dynapac was not known to
    the expo’s main roads could not be paved until the surroun-          many people, unlike now when it is quite famous.
    ding pavilions were completed. “The most challenging part of
    the project was the very tight schedule. Strict security checks      “dynapac equipment ensures a high-quality surface
    and frequent interruptions caused by inspections made it even        finish and roughness, and is superior to other brands. In
    tighter,” says Xu Yanxiang, general manager of Shunjiang.            addition, they offer good maneuverability. The Dyanpac
                                                                         rollers owned by one of my friends are still in good con-
    to make sure that the work was completed on schedule, Xu             dition after 15 years of operation, which is quite impres-
    made thorough preparations, devising several contingency             sive,” says Xu.
    plans. “Projects like this require excellent quality and the tight
    schedule has to be met,” he says. “Thanks to Dynapac equip-          Xu’s current dynapac fleet consists of two Dynapac
    ment, we managed to complete the work in ten days and the            CC522 tandem rollers, two Dynapac CC422 tandem rol-
    Expo committee was very pleased with the results.”                   lers and two Dynapac F141 pavers, all of which played
                                                                         a role in the Expo project. Dynapac is Shunjiang’s sole
    quality of the utmost importance                                     supplier of rollers and pavers.
    Among the many other projects that the company has under-
    taken are a car test-drive area for Volkswagen and a highway         “asphalt paving is a specialised undertaking with a strict
    from Shanghai to Jiading. Shunjiang has won trust and built          requirement for road roughness,” says Xu, who places
    up a good reputation over the past seven years. “Never in the        great emphasis on operator training in order to fully
    history of Shunjiang have we had to redo our work for quality        exploit the equipment’s capabilities. “Operators of pavers
    reasons,” notes Xu.

                                                                  about shunjiang road
                                                                  engineering co., ltd.
                                                                  Founded in 2003, Shunjiang Road Engineering Co.
and rollers need about six months’ training to start with and     Ltd. is a leading company that specialises in road-
it takes about 2-3 years to become a skilled operator.”           paving and pavement-milling operations in Shang-
                                                                  hai. As a subcontractor and close partner of Shang-
a blueprint for future success                                    hai Pudong Road and Bridge Construction Co.,
As one of the top companies in the field of asphalt paving in     Ltd. a listed company, Shunjiang has participated in
Shanghai, Shunjiang is now on the fast track to fulfilling the    many major construction projects in Pudong.
three-step development strategy that Xu has framed, which
started with an asphalt paving business and later expanded        The company has about 50 employees.
to include milling in 2008. Its next goal is to provide a one-    Since its opening on May 1, World Expo Shanghai
stop service combining paving, milling and asphalt-mixing.        has attracted an increasing number of visitors from
                                                                  around the world, showcasing the theme “Better
to that end, Xu plans to further expand his fleet. “I intend      City, Better Life”.
to add a Dynapac F161 to my inventory, mainly as its high
maneuverability makes it suitable for the construction of         As an important player in China’s construction field,
slow lanes and asphalt roads in industrial areas. I also intend   Dynapac provided equipment to construct the roads
to buy new pavers to replace the old ones and Dynapac is          for the exhibition area, including 22 km of roads
high on my supplier list,” notes Xu with a smile.                 within the Expo area and 29 km of roads in the sur-
                                                                  rounding municipality.
                                                                  Atlas Copco is an official partner of the Swedish

    dynapac offers it all in the com
                   dynapac presents the new wheeled compact planer: Pl1000t with 1 meter
                   cutting width and its sister model, Pl600t with 600 mm cutting width.

    twentY Percent more horse-                 For the new compact planers, which         and faster. A whole list of other op-
    power at a maximum milling depth of        have an operating weight of about          tions, like special drums, makes this
    300 mm substantially enhances the          13 tons, Dynapac uses the proven           machine ready for any milling job.
    milling performance in deep cutting        operating concept from our cold
    jobs or hard and abrasive material.        planers with 500 mm cutting width.         with a total of five compact cold
    This power, a small turning radius         Another patented solution of the           planer models, Dynapac proves itself
    and a quick detachable rear dischar-       new Dynapac compact planers is             a complete supplier for this important
    ge conveyor make the new Dynapac           the parallelogram front axle, which        work of milling. All five models with
    compact planer models ideal for            reduces wear at the tire shoulders         a common design bring continuity
    larger jobs in cities or confined areas.   substantially and at the same time         to equipment users. The recently
    Furthermore, three patented solu-          increases traction and wheel control       launched PL500T/TD models have
    tions and several innovative featu-        on a grade.                                proven successful on many job sites
    res make the new compact planer                                                       throughout the world. With the new
    models stand out.                          the patent pending round down              models, Dynapac builds on this
                                               holder at the front side of the cutter     experience and further improved the
    the unique one-side drum drive             housing minimizes the accumula-            strength of the planer design.
    bearing reduces time for a drum            tion of milled material and reduces
    change from standard to a fine milling     clean-up work on the track. These          about 30% of the cold planers in
    drum substantially since only one          are just some features that will help      the world are highly mobile, compact
    drum connection must be changed.           milling operators to do their job better   cold planers. They are used for road

                                            Your seat is reserved

mpact cold planer range
                                                 the Pl600t is convincing with its
                                                 maneuverability compact dimensions
                                                 and the good view of the cutting edge.
  maintenance and repair jobs as well
  as cutting of leftover material in con-
  junction with large planers. But they
  are also used for milling applications
  like cutting trenches, demarcation
  and cutting around manhole covers.

  dynapac is completing its offerings
  in this range by introducing the new
  PL1000T including its sister mo-
  dels, the PL600T and the updated
  PL350TD. With the recently launched
  PL500T and the deep-cutting version
  PL500TD, Dynapac covers the range
  from 350mm to 1m cutting width and
  from 100mm to 300mm cutting depth.
  All models are powered by the latest
  engines, which meet the emission
  regulations of Tier3a.

                quality assured co
                 a road construction project called tvärleden is currently in progress between
                 halmstad and Karlshamn to improve accessibility for both long-distance and
                 regional traffic. Part of this project involves the construction of a new road
                 between markaryd and osby in skåne, where at the present time there is no
                 direct route. it’s a turnkey contract, which means that the contractor handles
                 both the detailed design of the road, and also builds it.

     anders Johansson is a construction engineer at NCC, and               “We were using two 15 tonnes rollers and one 19 tonnes here
     one of 65 people working on the project. His job, together with the   before, but NCC needed a bigger roller that could compact thicker
     Dynapac roller CA 612D, is to make sure that the compaction work      layers compared to the others. This also reduces the number of
     maintains the promised quality.                                       passes, which cuts costs,” explains Ingemar Gustavsson from
     “Shoes off,” says Anders, as we climb into the new earth compac-      CRAMO. “It is important for us to have a good dialogue between
     tion roller. Imagine for yourself what it’s like spending a whole     both the customer and the supplier when choosing which product
     working day inside the cab; you would also want it to be nice and     the customer is going to use, to make sure we find the best possible
     clean, especially since it’s new.                                     product solution for what the customer needs.”

     the dynapac roller CA612D which Anders is driving is one of           the ca 612d roller chosen for NCC in Visseltofta is equipped
     five rollers that NCC is using for the road construction project.     with a compaction meter that senses the movement of the drum on
     “The CA612D is very simple and easy to use, and very comforta-        the roller in the vertical plane, which changes as the compaction and
     ble,” explains Anders.                                                firmness in the substrate increases. You can compare it with bouncing
                                                                           a golf ball on different surfaces. On loose sand it bounces less, and
     ncc is renting the roller from CRAMO, which has a lot of rol-         on hard asphalt it bounces higher. The higher the bounce, the higher
     lers from Dynapac in its outfit.                                      the compaction value (CMV, Compactation Meter Value). The roller

               What does the future look like in th
      anders Johansson, engineer, ncc:                                        vironmental aspects of the fleet for some time now, which can
      “Computerisation will take over more and more, with a                   be seen in our energy establishment concept, which means
      technology that simplifies the handling of the machines and             that it is now possible to reduce the consumption of energy at
      documentation of the completed work, as proof that we have              a construction site by 50%.
      done what we were supposed to.”                                         We also have a few products today that directly focus on helping
                                                                              customers in their own efforts with the environment, working en-
      ingmar gustavsson, sales, cramo                                         vironment and safety. We have, for example, the latest compac-
      “The future looks bright for us, with a definite upward trend in        tion computer with built-in GPS in several of our rollers.”
      the construction sector and a long-term increasing demand
      for our products at our customers. But customers are also               mattias andersson, sales engineer, dynapac:
      setting greater demands, which will lead to further develop-            “I believe we will be seeing a greater demand for heavy earth
      ment of both the products, and, not least the service level             compaction rollers and greater use of compaction documen-
      and the range of services and custom-designed solutions                 tation systems. Our compaction system DCA, together with
      linked to our products. CRAMO has been investing in the en-


   operator continuously receives information on the rate of compaction,      tes the need for extra equipment to orientate the roller operator.
   and when this eases off you start to reach the limit for what the roller   “Functions like the compaction meter and DCA with built-in GPS,
   can achieve. This avoids passes that are uneconomical and what are         antispin, and the possibility to turn the whole table round, simplify
   known as double jumps, or “bouncing”, which destroy the underlying         the driving of the roller while also increasing productivity,” says
   surface, and in the long run the roller as well.                           Anders Johansson, who has used a lot of different Dynapac rollers
                                                                              over the years.
   the roller is also equipped with a Dynapac Compactation Analyzer           “When we have finished compacting a grade level we go into the
   (DCA), which is a system developed by Dynapac to log the compac-           DCA system and take out the two weakest points on the grade and
   tion values and allow the operator to see the compaction results on        then do a static flat load analysis to ensure that the compaction work
   a computer screen. On the basis of this data the DCA can indicate          meets the requirements set by the customer,” he adds. With the
   which areas require additional compaction. Because the DCA unit is         help of the DCA what we get is quite simply a receipt that we have
   portable, it is also very simple to analyse the data in the office.        achieved the requirements set by our customer, which although this
                                                                              is obviously very useful for us, also reduces our operating costs and
   the dca is linked up to GPS so that all the passes are documented,         avoids excess wear and tear on the rollers from unnecessary passes.
   which gives the operator full control of the compaction rate over the
   entire surface. It also shows the position of the roller, which elimina-

his industry?
   our well-known compaction performance,
   which is available for customers in our da-
   tabank Compbase, means that we are well
   ahead. We have been actively working with
   the DCA system for several years, and now
   that demand from customers is increasing we
   have seen that user-friendliness is one of the
   big reasons why the system has become so
   popular in Sweden.”

                 anders Johansson, construction ncc,
                 mattias anderson, sales engineer at
                 dynapac and ingmar gustafsson, sales-
                 man at cramo are looking at the future.

                                                      means durable road paving
             every roadbuilder wishes to make road construction more economical, to build in shorter
             times and pursuant to the principle of sustainability. with dynapac’s compact asphalt®
             method this has now become a reality. one example is the new road surface that was laid
             on the b 254, not far from Kassel, by niedervorschütz, germany. the compact asphalt met-
             hod was used on an approximately 6 km stretch of road with a width of (+/-) 7.50 m. the
             paving work was conducted by the hannover branch of eurovia teerbau. compact asphalt
             means that both the binder and wearing layers are paved ”hot on hot” in one single opera-
             tion, using one paver.

     laying different materials simultaneously                                comparison to conventional paving. The interlocking of both layers
     The modular Compactasphalt® 2500 paver by Dynapac consists               during ”hot on hot” methods produces a more durable surface.
     of the DF145CS basic paver and the CM2500 module.If there is             One further advantage, which construction experts will certainly be
     a one-time need for conventional paving, as opposed to com-              able to appreciate, is that the paving season for compact asphalt is
     pact asphalt paving, the basic paver alone can be used. What is          longer than that for conventional paving. Thanks to the immediately
     immediately striking about the Compactasphalt® paver is its two          successive paving of both binder and wearing layers, hot on hot,
     hoppers. The upper, smaller hopper for wearing layer material has        the dreaded cooling of material occurs at a markedly slower pace.
     a 17-ton capacity, while the front hopper for binder materials has a     Therefore, it is also possible to work under lower temperatures.
     31-ton capacity. They are filled using the Dynapac MF300C feeder.
     Furthermore, two screeds are mounted to this paver. The front            optimum interlocking of layers
     screed for the binder layer is a high-compaction screed with tam-        Compact asphalt has become the premium paving method, among
     per, screed plate and an auxiliary compaction unit. This screed can      other reasons because the road surface is of higher quality. This
     also be raised for special paving requirements (e.g. for bridges).       is a result of the optimum interlocking of the wearing and binder
     The rear screed for paving the wearing layer is a standard screed.       layers. The high-compaction unit compacts the binder layer to
     The top profile and the slope for both screeds can be set from a         approximately 92 percent. This means that the screed’s maximum
     display on the control platform. This makes it easier, for example,      output is not called up. When the wearing layer is laid in the next
     to produce cross-slope when paving curves. The material logistics        step, the binder layer immediately initiates an intensive bonding
     requirements differ slightly from those for conventional paving since    process. The final step is the compaction of both layers, which
     both the wearing and the binder layer materials must be available in     reinforces the interlocking. This ”hot on hot” method ultimately
     sufficient quantities at the same time. At the construction project on   leads to an optimum interlocking of layers, which means durability
     the B 254, a total of 2,100 tons of wearing layer and approximately      for the road surface. This manner of paving had not been possible
     6,300 tons of binder layer were applied.                                 to date. One result of this method is that the material holds for
                                                                              an overall longer period of time. The costs over the road’s entire
     Premium method – faster and with fewer costs                             useful life are diminished. The principle of sustainability is thus op-
     The savings on material costs are made evident, for example, from        timally implemented in the end. One additional aspect is also to be
     the fact that spraying a bituminous emulsion between the layers is       taken into account. The milling off and the paving of a new wearing
     not necessary. Both the binder and wearing layers are paved ”hot on      layer can be done much later than is presently customary - simply
     hot” at the same time. Additional bonding with bitumen emulsion is       because the material that is applied during compact asphalt paving
     unecessary. Less of the expensive wearing layer material is requi-       has a significantly longer useful life, specifically of up to 25 years.
     red, which also produces savings. The layer thickness is smaller in

record highway in vietnam
                   gets underway with a fleet of 10 dynapac rollers
                    recently appointed dynapac vietnamese distributor v. long co. has
                    taken delivery of its first order for 22 vibratory compaction rollers; with
                    10 delivered for construction of vietnam’s noi bai - lao cai highway
                    plus a further five ca250d’s for hanoi’s second arterial highway.

ten dYnaPac ca250d compaction rollers are performing earth                  compaction duties
compaction duties on the USD1 billion Noi Bai – Lao Cai highway             Posco has taken delivery of two Dynapac
on Vietnam’s biggest award to be placed between the Government              CA250Ds which, together with six units
and the Asian Development Bank (ADB). The loan is also the                  ordered by sub-contractor Vietnam
largest finance agreement by ADB.                                           Expressway Services, a subsidiary of
                                                                            the state-owned Vietnam Expressway
the 244 km highway from Noi Bai to Lao Cai is an integral section           Corporation and Project Manager, are
of the eastern link of Greater Mekong Sub region (GMS) Northern             compacting the 27 cm thick clay base
Economic Corridor. The corridor connects Kunming City in the                course of the highway, as it passes
Yunnan Province of the People’s Republic of China with Hanoi, the           through flat rural areas and paddy fields.
ports of Hai Phone and Cai Lan in Vietnam..                                 The standard specification for construc-
  Building new roads linking countries in the Greater Mekong                tion of this road along its entire length
Sub region is seen as an important part of the development of               is for the compaction rollers to be used
                                                                            for a total of eight hours on the clay base        vietnam expressway
Vietnam’s transportation system. The construction of the Kunming
                                                                                                                               services, Project
- Hai Phong Transport Corridor road will help boost trade relation-         course. For five hours the rollers are used        deputy director,
ship between Vietnam’s northern provinces and China’s Yunnan                in static mode, with the final three hours         Pham thai long
province. The road also gives people living in the north-eastern            in vibratory mode.
mountainous provinces easier access to social services which helps
close the economic and social gap among regions nationwide.                according to V. Long Director, Nguyen Anh Tuan, the Dynapac
                                                                           model is ideally suited to conditions in Vietnam and to Vietnamese
adb’s country director for Vietnam, Ayumi Konishi, has said that           highway construction standards. He said, “The decision was made
on completion, the Noi Bai – Lao Cai Highway would be an effi-             to standardise on the CA250D so that throughout the project the
cient, safe and reliable high-standard road that would reduce travel       working specifications and parameters are consistent.” Continuing,
time to three hours from the present eight to ten hours; allowing          he also confirmed, “After-sales back-up was an important factor.”
one-day transport between Kunming, Hanoi and Hai Phong.
  “The highway will give a shorter and lower cost route to major           Vietnam Expressway Services, Project Deputy Director, Pham
ports and inland markets, have great potential for tourism and also        Thai Long, with more than 20 years experience in the construction
substantially enhance Vietnam’s ability to export agricultural and         industry, said, “The Dynapacs for me are the best in the industry for
maritime products to the Yunnan Province and improve internatio-           reliability and performance.”
nal competitiveness,” he added.

at present, many of the existing national ro-
ads between Hanoi and Lao Cai are narrow         vietnam’s motorcycles
and connected only by bridges with limited
capacity. The Noi Bai – Lao Cai Highway          The 110 cc motorcycle is the preferred mode of transpor-
will help reduce the volume of traffic passing   tation for the Vietnamese. No-one knows for certain how
through cities and towns along the road,         many motorcycles there are in Vietnam. You need to be 18
which could significantly reduce the number      to legally register one. Most people have 2 or 3 – and it also
                                                 appears many people under 13 have one.
of traffic accidents.
                                                 Suffice to say, there’s hundreds of thousands. It is to Viet-
                                                 nam what the “white van” is to Europe…and much more.
                                                 It is a people mover – frequently carrying complete families of both parents plus two or
                                                 even three young children. It is a taxi. It is a delivery vehicle – piled high with cartons,
                                                 packages and goods. It is a lifestock mover, carrying “trussed-up” pigs and baskets of
                                                 chickens and ducks to the market in the countryside.

                                                 Traffic is intense and chaotic with “right of way” clearly an unheard of rule, together
                                                 with a list of unwritten rules. The motorcycle is without a doubt an indispensible
                                                 “work horse” and a way of life for the Vietnamese.

                                                 As a street spectator, they all add up to the fascination of Vietnamese street life.

                                                                                                                     John Hooper

                                   For years, co2 has been associated with the Kyoto Protocol, an auxiliary treaty that was
                                   signed on december 11, 1997, which supplemented the united nations Framework con-

     the                           vention on climate change (unFccc) with the goal of achieving global climate protection.

                                   this agreement, which entered into force on February 16, 2005 and expires in 2012 defines
                                   for the first time, under international law, binding target values for greenhouse gas emis-
                                   sions in industrialized nations.

                    A contribution toward the reduction of CO2 emissions and costs –

                              the dynapac gas
     the Following focal points are of                 The screed and the paver were adjusted to the temperature overnight. Circuitry-contingent, the
     interest:                                         heating temperature measured 121 °C (electric screed) and 119 °C (gas screed).
                                                       The measurements were conducted not under laboratory conditions, but rather under practical
     Introduction of toll charges for heavy goods
                                                       conditions. Following charts are showing results in extract of the examinations.
        investment in railway infrastructure
        regenerative technologies
        more efficient methods of production           gas screed                                   trial 1              trial 2              trial 3
        protection of resources                                                                    02.19.2010          02.24.2010           02.26.2010

     most of the energy we consume (80%)               Ambient temperature (T0)                    18°C                     2°C                 8°C
     comes from fossil fuels. Not only are they a      Screed temperature at start of test (T0)    18°C                     2°C                 8°C
     burden on the environment, they are also se-      Screed temperature at end of test (T1)     119°C                   119°C               119°C
                                                       Heating duration (t)                       20min                   27min               22min
     asonally dependent and are continuously kept
                                                       Consumption primary energy, propane (E)    1.15kg                  1.55kg              1.25kg
     at a high price through concerted price hikes.    Consumption primary energy, diesel (E) 1.0 l (0.86 kg)         1.0 l (0.86 kg)     1.0 l (0.86 kg)
     There is no foreseebale end to the price spiral
     in sight.
     the great majority of roads are made of
     rolled asphalt, in which the asphalt mix is
     applied using road pavers. The pavers are
     equipped with electric or gas-heated screeds.
     Our company leaves the choice of heating          The average consumption per heating process was 1.32 kg propane and 0.86 kg diesel for
     system to the client, because ingrained habits    start-up of the paver, with an average heating duration of 23 minutes.
     often play a key role in this decision.
     most of the energy energy is used to heat
                                                       electric screed                              trial 1              trial 2              trial 3
     up the screed before starting to pave. Under
                                                                                                   02.19.2010           02.24.2010          02.26.2010
     normal operating conditions, it occasionally
     requires brief reheating. These reheating         Ambient temperature (T0)                    18°C                     2°C                 8°C
     cycles depend on the paving conditions and        Screed temperature at start of test (T0)    18°C                     2°C                 8°C
     on the temperature of the asphalt mix upon        Screed temperature at end of test (T1)     121°C                   121°C               121°C
     delivery, i.e. they vary and therefore do not     Heating duration (t)                       29min                   48min               37min
     allow for a direct comparison of both heating     Consumption primary energy, diesel (E) 6.0 l (5.16 kg)         7.5 l (6.45 kg)     6.6 l (5.68 kg)
     systems in the field. For this reason, the test
     aims for an eco-economic differentiation
     between both heating systems during the
     warm-up phase.
     The following questions are focal points of
         How much CO2 is emitted during a              The average consumption was 6.7 l and 5.76 kg diesel per heating process. The average hea-
         single heating-up of a screed to operating    ting duration here was 38 min.
         temperature?                                  Basis for the calculation were the relevant greenhouse gases according to the Kyoto protocol. Fol-
         What are the quantities of propane and       lowing chart is showing different heating systems and the resulting emission values respectively.
          diesel fuel required for the warm-up?
          How much time does it take on average to
          reach the optimum screed temperature?                                                       unit           gas heating electric heating
          Are there economic advantages tied to                                                                      of the screed of the screed
          the choice of an environmentally-friendly    Emissions in CO2 equivalents           kg/heating process            6.9                  19.66
          screed version?

    The following makes clear the correlation between ambient temperature and initial
    temperature of the screed prior to heating, and fuel consumption.
                                                                    energy consumtion dependent on the ambient temperature
                                                        energy consumption dependent on the ambient temperature
 energy consumption in mJ


                      energy consumption in mJ


                                                                                                                                                   the vb 5100 gas screed reduces
                                                 50                                                                                                Co2 emissions, in comparison
                                                                                                                                                   to the electric screed, by a factor
                                                       20      18    16       14       12        10         8         6       4     2          0
                                                                                                                                                   of 2.8 (64.9%) under comparable
                                                                                      ambient temperature in °c
                                                                                                           o                                       conditions (Fig. 7). because of the
                                                                            ambient temperature in c
                                                                                                                                                   markedly more effective heating
     Fuel consumption depending on the ambient temperature                                                                                         performance of the gas screed, the
     red line: electrically heated screed                                                                                                          consumption costs are diminished by
     green line: gas heated screed                                                                                                                 a factor of 3.3 (approx. € 705/year).
                                                                                                                                                   the reduction in personnel costs due
                                                                                                                                                   to the differing heating times is even
    It becomes evident that the propane-gas heating system possesses clear advantages in terms                                                     more dramatic, at approx. € 5,680/
    of emissions. If a measurement uncertainty of 10% [4] is taken into account, to the disadvan-                                                  year. With a lower heating time of
    tage of the gas heating system, an emission of greenhouse gases is obtained for the electrical                                                 23 mins. instead of 38 mins., as
    heating that is approximately 2.5 times higher.                                                                                                compared to an electric screed,
                                                                                                                                                   the overall costs were reduced by
                                                                                                                                                   more than € 38,000 (approx. 41%)
                                                            vb 5100 overall comparison gas heating / electric heating
                                                                                                                                                   for the useful life of 6 years that was
                                                                                     gas heating           electric heating       difference       contemplated.
                                                                                                                                                      the comparison shows not only
              operating cost, overhead expenditures 305 €                                                         1,010 €           -705 €
                                                                                                                                                   the significantly lower burden on
                                                                                                      k           3,3                              the environment by the use of a gas
              Personnel cost/season                                                                                                                screed. it also leads to the realization
                                                                                       8,720 €                    14,408 €          - 5,688 €
                                                                                                      k           1,7                              that the possibility of making a signi-
              total cost/season                                                        9026 €                     15,419            - 6,393        ficant contribution to protecting of the
                                                                                                                                                   environment is also tied to a conside-
              life cycle of the unit                                                                  6           a                                rable reduction in overall costs.

              total cost of the life cycle of the unit                                 54,156                     92,512            - 38,356
                                                                                                                                                   the advantages of permanent
              (w/o service cost)                                                                      k           1,7               - 41.5 %       availability of diesel fuel as a primary
                                                                                                                                                   energy source, together with reduced
              co2-emissions per heating up                                                                                                         personnel costs in terms of handling
                                                                                       6,900 kg                   19,660 kg         12,760 kg
              time of the screed                                                                      k           2,8               - 64,9 %       gas cylinders, are unable to offset the
                                                                                                                                                   clear advantages of the gas screed.
                                                                                                                                                     environmental protection and cost-
         overall comparison -                                                                                                                      effectiveness must not be contrary.
         cost comparison method

     we take service to a higher level

       The Dynapac service offer includes a complete range of service, support and well trained
       personell, covering all your support needs in the field of compaction, paving and milling
       – where ever you are!

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                                                                                                   PMI 3492 0140 01