Influence of Silica Fume/Nanosilica on the Strength and Microstructure of Phosphoaluminate Cement

Abstract:

The influence of Silica fume/Nanosilica on the Performance of phosphoaluminate cement was studied in the paper. The microstructure and morphology was determined by X-ray diffraction and scanning electron microscopy. The experimental results show that the phosphoaluminate cement with 4% of added Silica fume/Nanosilica(1:1) by weight of cement has an optimum splitting strength, in which the increase of splitting strength are about 15.1%,11.8% and 24.6% at 3days,7days and 28 days. The reason for causing the above results are the hydration rate and the amount of the hydrates of PALC with 4% Silica fume/Nanosilica have been increased significantly at different hydration time because of the role played by Silica fume and Nanosilica together.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 1447-1449
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.1447
• Online since: July 2011
• Authors: Chen Jing Lv, Shu Xia Ren, Xiu Shu Tian
• Keywords: Microstructure, Nanosilica, Phosphoaluminate Cement, Silica Fume (SF), Strength

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