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									 French – Vietnamese conference on High-rise buildings and underground structures
                      18-19th November 2010, Paris, France




      Ultra High Performance
   Concrete Using Waste Materials
       for High-Rise Buildings
      Nguyen Van Tuan1,2 – Pham Huu Hanh2 – Le Trung Thanh2,3,4
         Ye Guang1 – Marios Nicou Soutsos3 – Chris I. Goodier4
                    Microlab, Delft University of Technology, The Netherlands
                         1
       2Department of Building Materials, National University of Civil Engineering, Vietnam
             3Department of Engineering, The University of Liverpool, Liverpool, UK
    4Department of Civil and Building Engineering, Loughborough University, Leicestershire, UK




CIGOS2010   -   18-19 Nov. 2010                                                                  1
                National Uni. of Civil Engineering, Hanoi, Vietnam




                                         DelPHE


            University of Liverpool             University of Loughborough

                                  Sustainable development


CIGOS2010   -   18-19 Nov. 2010                                          2
                Content

      Introduction
      Compositions
      Results and discussion
               UHPC incorporating SF, GGBFS and PFA
               UHPC incorporating RHA
      Conclusion




CIGOS2010   -   18-19 Nov. 2010                        3
                Content

      Introduction
      Compositions
      Results and discussion
               UHPC incorporating SF, GGBFS and PFA
               UHPC incorporating RHA
      Conclusion




CIGOS2010   -   18-19 Nov. 2010                        4
Introduction
High-rise buildings




                             (P.-C. Aitcin, High performance concrete, 1998)


CIGOS2010   -   18-19 Nov. 2010                                                5
Introduction
High-rise buildings

                          150 stories
                          80 MPa




CIGOS2010   -   18-19 Nov. 2010         6
Introduction
High-rise buildings




                                  From: High-Strength Concrete,
                                  Portland Cement Association, 1994
CIGOS2010   -   18-19 Nov. 2010                                       7
 Introduction
 Development of concrete technology and
   compressive strength of concrete



                                                    Concrete strength development over
                                                       100 years [Spasojevic 2006]




Significant development of concrete technology in
         the last 40 years [Schmidt 2007]

 CIGOS2010   -   18-19 Nov. 2010                                                     8
Introduction
Ultra High Performance Concrete (UHPC)

   UHPC is a very promising construction material with ultra high
    compressive strength (higher than 150 MPa) and excellent
    durability
       (Collepardi et al. 1997, Shah and Weiss, 1998)


   This performance means UHPC can have interesting
    applications (highly aggressive environments, waste storage,
    the nuclear industry), and makes it possible to envisage
    structural components with very long lifetimes without
    maintenance or repair
       (BFUP, AFGC, Interim Recommendations for UHPC, France, 2002)




CIGOS2010   -   18-19 Nov. 2010                                       9
Introduction
Some mineral admixtures used to produce UHPC




        Silica fume               Fly ash   Blast furnace slag




CIGOS2010   -   18-19 Nov. 2010                              10
Introduction
Rice husk ash (RHA)




                                                            RHA




                                     By-product
                                  rice processing   An agricultural waste

CIGOS2010   -   18-19 Nov. 2010                                        11
Introduction
Rice Husk Ash (RHA)




                                  Grinding




CIGOS2010   -   18-19 Nov. 2010              12
                Content

      Introduction
      Compositions
      Results and discussion
               UHPC incorporating SF, GGBFS and PFA
               UHPC incorporating RHA
      Conclusion




CIGOS2010   -   18-19 Nov. 2010                        13
Compositions

Compositions




CIGOS2010   -   18-19 Nov. 2010   14
                Content

      Introduction
      Compositions
      Results and discussion
               UHPC incorporating SF, GGBFS and PFA
               UHPC incorporating RHA
      Conclusion




CIGOS2010   -   18-19 Nov. 2010                        15
Experimental results
UHPC using Silica fume

                                  -   Curing temperature: 20 - 90oC
                                  -   The water to binder ratio: 0.15,
                                      by weight
                                  -   Cement CEM II/A-V 42.5 N




                                         The maximum SF
                                         replacement: 40%




CIGOS2010   -   18-19 Nov. 2010                                          16
Experimental results
UHPC using Blast furnace slag

                                  -   Curing temperature: 20 - 90oC
                                  -   The water to binder ratio: 0.15,
                                      by weight
                                  -   Cement CEM II/A-V 42.5 N


                                         50% GGBS + 10% SF
                                                  
                                        60% cement replaced
                                              (in total)



CIGOS2010   -   18-19 Nov. 2010                                          17
Experimental results
UHPC using Fly ash

                                  -   Curing temperature: 20 - 90oC
                                  -   The water to binder ratio: 0.15,
                                      by weight
                                  -   Cement CEM II/A-V 42.5 N


                                          30% PFA + 10% SF
                                                  
                                        40% cement replaced
                                              (in total)



CIGOS2010   -   18-19 Nov. 2010                                          18
                Content

      Introduction
      Compositions
      Results and discussion
               UHPC incorporating SF, GGBFS and PFA
               UHPC incorporating RHA
      Conclusion




CIGOS2010   -   18-19 Nov. 2010                        19
Results
UHPC using Rice husk ash

                                  -   Curing temperature: 20oC
                                  -   The average particle size of
                                      RHA: 5 µm
                                  -   The water to binder ratio:
                                      0.18, by weight
                                  -   Cement CEM I 52.5 N

                                       - The maximum RHA
                                          replacement: 20%
                                        - The maximum SF
                                          replacement: 30%


CIGOS2010   -   18-19 Nov. 2010                                      20
Results
The combination of RHA and SF on compressive strength
  of UHPC
                                  -   Curing temperature: 20oC
                                  -   The average particle size of
                                      RHA: 5 µm
                                  -   The water to binder ratio:
                                      0.18, by weight
                                  -   Cement CEM I 52.5 N

                                        30% RHA + 10% SF
                                                
                                      40% cement replaced
                                            (in total)


CIGOS2010   -   18-19 Nov. 2010                                      21
Results
Possibility of using RHA in combination with SF to
  produce UHPC with a reduced cement content
                                  -   Curing temperature: 20oC
                                  -   10% RHA + 10% SF
                                  -   The average particle size of
                                      RHA: 5 µm
                                  -   The water to binder ratio:
                                      0.15, by weight

                                     Cement CEM III/B 42.5 N
                                         contains 69% slag
                                                
                                     Only 25% clinker used
                                  or 75% cement replacement

CIGOS2010   -   18-19 Nov. 2010                                      22
                Content

      Introduction
      Compositions
      Results and discussion
               UHPC incorporating SF, GGBFS and PFA
               UHPC incorporating RHA
      Conclusion




CIGOS2010   -   18-19 Nov. 2010                        23
Conclusion
 -     The waste materials such as SF, GGBS, PFA, RHA can
       be considered as a usable supplementary cementitious
       material using for producing UHPC.

 -     In combination with 10% SF, up to 50% GGBS or 30%
       PFA or 40% RHA can be used as partial cement
       replacements without significantly affecting the
       compressive strength of UHPC.

 -     The combination of 10% RHA and 10% SF can be used
       to produce UHPC even with CEM III/B 42.5 N containing
       69% slag. Only 25% clinker by weight of total binder


CIGOS2010   -   18-19 Nov. 2010                           24
                Thank you for your attention!




CIGOS2010   -   18-19 Nov. 2010                 25

								
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