Title:
Research on Using Fluorosilicate for the Enhanced Performance of Concrete
Author(s):
Wei Li, Yi Wang, Gao-ming Wang, Yu Shi, and Zi-ming Wang
Publication:
Symposium Paper
Volume:
303
Issue:
Appears on pages(s):
293-300
Keywords:
compressive strength; magesium fluosilicate; mixture fluidity; SEM analysis; setting time; XRD analysis
DOI:
10.14359/51688141
Date:
6/1/2015
Abstract:
Currently, despite the large production, only about 10% of the fluorosilicates, a by-product from the phosphate fertilizer factories can be recycled, leading to no economic benefits. Moreover, the only way to dispose of fluorosilicates is discharging it into water, bringing about water pollution. However, fluorosilicate can be used as a basic material to improve the strength and hardness and then enhance durability of concrete according to a certain volume-to-weight fraction. In this paper, the enhanced performance of fluorosilicate on concrete was studied via the setting time of cement, the fluidity and strength of mortar, the mixing performance and the strength of the concrete. The enhanced mechanism was analyzed by XRD and SEM methods.