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Influence on microstructure of micronized sand as cement replacement in cementitious materials

Y Wang and Guang Ye (UGent)
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Abstract
In this study, micronized sand is selected as a kind of filler to partially replace cement in cementitious materials. This filler is considered as chemically inert material, which can not react with water or hydration products, but still indirectly influences the hydration in a positive way. In the experimental program, non-evaporable water test was carried out to determine the degree of hydration of cement paste with and without micronized sands. The influence of different finenesses of sand particles, 240 m2/kg, 400 m2/kg and 1300 m2/kg, and different curing ages were investigated. The SEM image analysis was used to characterize the morphological changes of microstructure by the presence of the micronized sand during the cement hydration process. Hydration reaction is enhanced by the use of inert micronized sands. The fineness of micronized sands influences the degree of hydration a lot. The fineness factor has been taken into account in the simulation. There is a clear interface area between sand particle and hydration products.
Keywords
microstructure, fineness, cementitious materials, Micronized sand

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Chicago
Wang, Y, and Guang Ye. 2010. “Influence on Microstructure of Micronized Sand as Cement Replacement in Cementitious Materials.” In 1st International Conference on Sustainable Construction Materials : Design, Performance and Application, Proceedings, ed. Zhonghe Shui, Shaopeng Wu, and Jianying Yu, 644–654. Wuhan, China: Wuhan University of Technology Press.
APA
Wang, Y, & Ye, G. (2010). Influence on microstructure of micronized sand as cement replacement in cementitious materials. In Z. Shui, S. Wu, & J. Yu (Eds.), 1st international conference on sustainable construction materials : design, performance and application, Proceedings (pp. 644–654). Presented at the 1st International Conference on Sustainable Construction Materials : Design, Performance and Application (SUSCOM - 2010), Wuhan, China: Wuhan University of Technology Press.
Vancouver
1.
Wang Y, Ye G. Influence on microstructure of micronized sand as cement replacement in cementitious materials. In: Shui Z, Wu S, Yu J, editors. 1st international conference on sustainable construction materials : design, performance and application, Proceedings. Wuhan, China: Wuhan University of Technology Press; 2010. p. 644–54.
MLA
Wang, Y, and Guang Ye. “Influence on Microstructure of Micronized Sand as Cement Replacement in Cementitious Materials.” 1st International Conference on Sustainable Construction Materials : Design, Performance and Application, Proceedings. Ed. Zhonghe Shui, Shaopeng Wu, & Jianying Yu. Wuhan, China: Wuhan University of Technology Press, 2010. 644–654. Print.
@inproceedings{1640102,
  abstract     = {In this study, micronized sand is selected as a kind of filler to partially replace cement in cementitious materials. This filler is considered as chemically inert material, which can not react with water or hydration products, but still indirectly influences the hydration in a positive way. In the experimental program, non-evaporable water test was carried out to determine the degree of hydration of cement paste with and without micronized sands. The influence of different finenesses of sand particles, 240 m2/kg, 400 m2/kg and 1300 m2/kg, and different curing ages were investigated. The SEM image analysis was used to characterize the morphological changes of microstructure by the presence of the micronized sand during the cement hydration process. Hydration reaction is enhanced by the use of inert micronized sands. The fineness of micronized sands influences the degree of hydration a lot. The fineness factor has been taken into account in the simulation. There is a clear interface area between sand particle and hydration products.},
  author       = {Wang, Y and Ye, Guang},
  booktitle    = {1st international conference on sustainable construction materials : design, performance and application, Proceedings},
  editor       = {Shui, Zhonghe and Wu, Shaopeng and Yu, Jianying},
  isbn         = {9787900503053},
  keyword      = {microstructure,fineness,cementitious materials,Micronized sand},
  language     = {eng},
  location     = {Wuhan, China},
  pages        = {644--654},
  publisher    = {Wuhan University of Technology Press},
  title        = {Influence on microstructure of micronized sand as cement replacement in cementitious materials},
  year         = {2010},
}