Addition of Silica Fume to Improve Strength of Cement Paste

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Chen, Jiajian^1 ; Chen, Hongniao^2 ; Li, Gu^3

Department of Civil Engineering, Foshan University, Foshan, China^1

Space Structures Research Center, Guizhou University, Guiyang, China^2

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, China^3

关键词: Cement paste;    Cementitious materials;    Cementitious pastes;    Cube strength;    In-depth analysis;    Packing density;    W/cm ratios;    Water film thickness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/2/022015/pdf
DOI  :  10.1088/1757-899X/322/2/022015

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This study measured the packing densities of 0 to 30% silica fume (SF) added cementitious materials and strength of the cementitious pastes with various water content. The results revealed that addition of silica fume up to a certain level has great effects on packing density and strength. In-depth analysis illustrated that a lower W/CM ratio would not always result in a higher cube strength, and the range between 0.05 and 0.07 μm would be the amount of water film thickness (WFT) for muximum strength.