VOL.3 NO.2 JUNE 1999 No-Dig North NEWSLETTER OF THE GREAT LAKES AND ST. LAWRENCE CHAPTER OF THE NASTT Piping the News related to the condition assessment of Bill Garibaldi (City of Waterloo) and Ian water distribution systems. They also Doherty (Trenchless Design Services) About Water presented an emerging technology that demonstrated the true value in present- measures the existing wall thickness of Rehabilitation metallic pipes. Piero Salvo (WSA ing case studies. Bill shared their experi- ences (good and not so good) about the by Grant Murphy, P.Eng. Consultants) gave an excellent presenta- sliplining and horizontal drilling of 460 tion on the various water rehabilitation m of a 250 mm HDPE water main along A blustery day in March saw over 100 techniques cement lining, epoxy University Avenue in Waterloo, Ontario. people brave the cold and the wind to lining, sliplining, cure-in-place pipe, attend the first of a series of Piping the Epoxy Relining Project and other associated techniques. This News workshops that provided an Last but not least, special thanks to provided a precursor of the various opportunity to explore water main Piero Salvo for stepping in at the last trenchless techniques discussed in rehabilitation technology. Held in moment to speak on behalf of the greater detail in the afternoon. Markham, the workshop attracted great Region of Ottawa-Carleton. Along with interest from large and small municipali- Four Case Studies Presented Al Weibe of Retubec, Piero provided a ties, consultants, and contractors from The afternoon saw four case studies detailed presentation on the aspects of Ontario and Quebec. about cement lining, HDPE sliplining, an epoxy relining project in Rockcliffe, The Great Lakes and St. Lawrence cured-in-place pipe, and epoxy lining an upscale Ottawa neighbourhood. A Chapter (GLSLC) of NASTT partnered presented by the City of Toronto, the polished video was shown and even with the Ontario Water Works Associa- City of Waterloo, the Region of Ottawa- though the original speaker (Michael tion (OWWA) on this event. The goal of Carleton, and the City of Sorel, respec- Willmets, Region of Ottawa-Carleton) the GLSLC is get the message out about tively. Even with various scheduling couldnt attend due to poor weather, he trenchless technology and how it can be conflicts and weather-related misfor- was there on the big screen! applied in municipal infrastructure. For tune, the case studies were excellent. Afternoon Discussion But No Agreement more information check out our web site Shaun McKaigue (Fer-Pal Construction) at www.nasttglsl.on.ca. At the end of the day, the speakers were and Grant Murphy (Interactive Engi- invited to return to the head table to The morning saw welcoming addresses neering) presented on the extensive present their views on the value of from Joseph Loiacono (Chapter Chair), application of cement lining of distribu- completing structural and capacity Kingsley Blease (OWWA) and Linda tion water mains in Toronto. With a condition assessment on municipal Dionne (Watermain Rehabilitation quick schedule change, Jean Paquin water distribution systems. The great Association of Ontario). (Sanexen) introduced a form of cure-in- thing about the forum was that no one place pipe application currently in use Wayne Green, Keynote Speaker agreed on anything, which means that in the City of Sorel. The technique Wayne Green (City of Toronto) was the theres still a great deal of work to do sparked much discussion and interest. keynote speaker, with an overview of before this sort of work is clearly under- some of the issues facing the newly stood and valued! formed megacity. One of the greatest The GLSLC thanks the generosity of challenges facing Toronto is the ability to several individuals for the many hours prioritize and manage the multitude of of in-kind support provided. In addi- water main rehabilitation projects tion, the financial support of the many ranging from slip-lining projects to exhibitors is greatly appreciated, in cleaning and cement lining projects. particular the Watermain Rehabilitation Another challenge is the replacement of Association of Ontario. non-standard water services, and Thanks to everyone who attended the opportunities for trenchless applications. future of Chapter events is in your Condition Assessment Grant Murphy addresses attendees hands.We need to hear from you about while Joe Loiacono and Linda Dionne look on what is important to you so that you can Larry Staples and Brian Mergelas from help shape future events. Contact any of Hydroscope presented on various issues the Board members to share your ideas . From the Chair by Piero Salvo,ing. Lettre du Président du Chapitre They say that the first one is the toughest one, so here I go. I par Piero Salvo, ing. would like to take this opportunity to thank my fellow GLSL Il est souvent dit que la première lettre est la plus difficile, Chapter board members for giving me the opportunity and bien allons-y. Jaimerais prendre cette occasion pour remercier honor of being Chairman of the board of our chapter for the mes collègues du GLSTT de mavoir donner loccasion et 1999-2000 Term. I will attempt to continue the great work honneur dêtre président du chapitre pour le mandat de 1999- already achieved by our past chairs. 2000. Jentreprendrai de suivre le grand travail qui a été fait Our chapter will be working towards getting our Maritime par nos anciens présidents. Dans le présent mandat, notre colleagues involved in more activities over the upcoming chapitre entreprendra dimpliquer davantage nos collègues term. At the same time, we are focusing our energy on spark- des Maritimes. En même temps nous concentrons certains ing interest from academic circles in the Great Lakes-St. éfforts vers le milieu académique de notre région, soit les Lawrence area. We are in the process of listing and contacting Grands Lacs-St. Laurent, afin dinspirer un intérêt dans ce academic institutions that are already involved, or interested milieu. Nous sommes en voie de préparer et de contacter des in, the Trenchless Technology industry. We are counting on institutions académiques qui sont déjà impliquées, ou qui their enthusiasm and youth to participate in events that the sintéresse aux Téchnologies Sans-Tranchée. Nous comptons GLSL Chapter will endorse. sur leur enthousiasme et jeunesse afin de participer à des événements commandités par le GLSTT. Some of the ideas that have been put forward include a technical paper competition dealing with the trenchless Quelques-unes des idées qui ont été avancées sont les industry, Chapter and industry presentations at academic suivantes; lécriture de thèses qui sont reliées avec lindustrie institutions, competitions where students use materials from du Sans-Tranchées, des présentations techniques aux institu- the Trenchless industry such as a concrete toboggan race. We tions académiques et des compétitions où les étudiants welcome other idea - check out our website at utiliseront des matériaux ou des idées utilisées dans www.nasttglsl.on.ca. lindustrie. Si vous avez dautres idées, elles seront grandement bienvenues et appréciées. Ces idées peuvent être At this stage, I would like to reiterate my thanks to my fellow adressées à notre site internet www.nasttglsl.on.ca board members. If any of our members have any questions concerning our Chapter, do not hesitate to contact us. A cet fin, jaimerais réiterer mon remerciement à mes compagnons du comité et en même temps jinvite chacun de NASTT Conference in Sunny Orlando nos membres qui sintéresse aux activités du chapitre ou qui ont autres questions, nhésitez pas à nous contacter. by Don Gunn contact information is available Another No-Dig Conference has come and gone, well at- at www.nastt.org tended as always by GLSLC members. The Canadian pres- Our Chapter was represented ence at this conference was clearly illustrated by the number or active in both the sewer and of papers, (12 of 39) produced and presented by Canadian water committees and joint research organizations, municipal agencies, and consultants/ chapter meetings held during contractors. the conference provided a Awards for technical papers forum for sharing successes from the 1998 No-Dig held in and failures as well as a Albuquerque, NM were pre- discussion between NASTT sented to Dr. Ian Moore from headquarters and local chap- the University of Western ters. Chapters were able to Ontario and Marc Gelinas from highlight the past years works the University of Waterloo. and spoke optimistically of future endeavours to further Conference papers ranged from the development of trenchless intense research works into technologies. Piero entertains with his sewer condition assessment Everyone enjoyed the sun and rendition of Day-O using video image recognition and neural network association alligators and thankfully nobody succumbed to heat stroke or to practical aspects and case grappa fever thanks to Dr. Salvos spring water. studies relevant to small diameter gravity sewers. A large amount of research and The Great Lakes and St. Lawrence development was also presented dealing with horizontal Chapter of the NASTT would like to thank directional drilling and geological condition assessment. CH2M Gore & Storrie Limited for their assistance in printing this newsletter. Copies of conference proceedings are available from NASTT TRENCHLESS TECHNOLOGY NEWS CASE STUDY SPOTLIGHT Duratron Slipliner - A Pipe Dream Becomes Reality Duratrons new trenchless pipe The Ultimate Challenge dreamtechnology is an important MTO Highway 400 Culverts breakthrough for contractors engaging in day-to-day pipe replacement and Duratron was awarded a large MTO maintenance work. The concept is culvert rehab contract in the Sum- unique, yet simple enough for construc- mer of 1998 involving over 100 culverts tion and maintenance people to use it ranging in sizes from 10to 30in effectively. Once installed, it is consid- diameter. ered structurally independent from the Each culvert was unique they varied original aged pipe. Other qualities in size and materials including CSP, include equal flow capacity, corrosion Joining the Pipe concrete, and cast iron. Some had open resistance, compliance to standards, and ends, other were connected to catch environmental safety. This exercise proved to be the key to basins between the centre median and Third party ASTM F1216 testing was enlarging heavy-walled PVC pipe shoulder of Hwy 400. All had problems done on randomly-removed sections of consistently without failure. A computer with joint separation, infiltration, and installed liner which confirmed a 50- model and program was also developed structural damage. In many situations, year design life. to assist in processing the liner within this window expansion criteria. The technology is protected by patent in the U.S.A. and has been recently al- Additional testing and trial installations lowed in Germany, France and the U.K.; were completed and documented in other countries are pending. 1995. Our first watermain renewal contract award was started in the Briefly, the system is described as a summer of 1996 for the National Re- processed structural replacement pipe search Centre in Ottawa followed by for use in water, gas, and sewage lines installations in Scarborough, Windsor, marketed under the trade name and Caledonia. A modified version was Duraliner.In general, pressure systems developed for gravity systems to in- are labelled as Blueliner while gravity clude full lining and point repairs. In Expansion Mandrel systems are labelled as Greenliner. 1997 spot repair projects were success- Background fully completed for Scarborough, video inspection reports were inconclu- The idea came about in 1994 when we Richmond Hill, and the private sector. sive regarding the size, length, and looked at butt fusing PVC virgin resin condition, therefore requiring detailed Connecting Valves and Fittings reassessment before work could be pipe and using it as a slipliner through a Duraliner has a unique advantage for maintenance hole or insertion pit. Once completed. Full lining and transition reconnecting components such as repairs within varying pipe sizes would perfected, we decided to experiment hydrants, valves, and fittings. When the with heating the butt-fused sections and have been difficult (if not impossible) to liner is processed, the outlet ends are achieve with single-sized liners. Fortu- expand them inside a larger diameter further expanded within a sizing gauge pipe. Although we had limited success nately for Duratron the new assembly to make it the same outside with expansion it was encouraging diameter as the original iron pipe. This Continued on Page 4... enough to develop a model for testing allows the contractor to use off the PVC behavior at elevated temperature. shelf waterworks fittings to A literature search revealed little infor- reconnect the system. New serv- Material Specifications mation for PVC at temperatures over ices and branch tees can also be 60°C (140°F) other than glass transition Flexural Modulus 400,000 psi ASTM installed at a later time using a D790 and extrusion temperatures. We hired an simple device to expose and size independent engineer to work with us the liner for direct connection. Flexural Strength 7,000 psi ASTM D638 under a confidentiality agreement and With this concept there is no need developed a plan. After months of work for the owner to stock special PVC Cell Class 12454 B ASTMD1784 using Instron testing equipment, control fittings or adaptors to make the samples and modified hot water baths ASTM F 1216 Design necessary transitions. Fully deteriorated conditions and we were able to gather enough data to locate and develop a safe window for 50 year design life expansion. THE CATT REPORT by Marc Gelinas Things are certainly moving forward at recruiting graduate level research CATT. The New Year brought new board assistants. A summary of the work members, new initiatives, new research performed to date was presented at the efforts, and a new distinction for our 1999 North American No-Dig Conference Executive Director, Dr. Ralph Haas. and Exhibition in Orlando, Florida. Mr. Sunil Sinha, another CATT researcher, Dr. Haas, Distinguished Professor will also be present at the conference. Emeritus and the Norman W. McLeod Mr. Sinha will deliver a paper on the engineering professor at the University of development of an optical recognition Waterloo, was recently named a member system capable of automatically of the Order of Canada for his work in assessing pipeline images. infrastructure management. Congratulations go to Dr. Haas who will With the elections concluded, CATT held Finally, in keeping with the trend of attend investiture ceremonies in Ottawa its first Board of Directors meeting on new beginnings our Director, Lynette later this year. January 28th. New initiatives for 1999 Snelgrove, recently welcomed a new were discussed, including the addition a baby boy born on January In elections, voting for the position of 19th. Our congratulations go to Lynette, presentation of a series of trenchless CATT Technical Chair concluded on who will take a leave from CATT to care short courses and the development of January 11th. When all the ballots were for young Stephen Hezekiah. In her trenchless technology specifications. counted, Hubert Bethlehem of Wm. absence Marc Gelinas, CATTs Research Keep watch on this column for news of Bethlehem Trenching Ltd. and Horizontal Engineer, has assumed the position of future developments. Enviro-Bore Ltd. came out ahead. Hubert acting director. brings several years of experience in On the research front, activity continues utility installation, horizontal directional to be high. With an extension of funding drilling and horizontal environmental to support horizontal directional drilling wells to the committee. We look forward and polyethylene pipe research, Drs. to his contributions. Knight and Polak have been actively Check out the new Moving? New email address? Great Lakes and St. Lawrence Send any changes to 211 Island Road Chapter Toronto, ON M1C 2R1 website at or via email to Don Gunn at www.nasttglsl.on.ca firstname.lastname@example.org Continued from Page 1... Greenliner concept allowed the use was badly crushed at an open end, the introductory video was shown in the of heavier walled liner pipe that could damaged piece was removed and United States at the National Associa- be expanded to fit and mold to suit a extended using Standard DR 35 PVC tion of Sewer Service Companies two- size change. For example a 12CSP sewer pipe and in turn molded to the (NASSCO) 1996 Conference,as well as 10concrete, 12C.I. and back to internal Greenliner, making it continu- a full presentation in February 1999. 10concrete culvert pipe was lined using ous. For further information contact an expanded 8diameter liner to accom- Licensing and Marketing Hank St.Onge, President of Duratron at 120 modate all the above sizes. The new Duraliner concept was intro- Melford Dr. Toronto, Ontario, M1B 2X5 In another situation where a CSP culvert duced to CATT and CERIU last year. An (800) 608-3373 or (416) 299-4370.
Pages to are hidden for
"NASTT Newsletter JUNE99"Please download to view full document