Study on the anti-cracking type high-strength grouting material
XU Libin
WANG Jichao
CHEN Shangwei
ZHU Guoliang
ZHOU Ling
DING Yinxian
Abstract：This paper used 0~10 μm ultra-fine composite fume,compound expansion agent,zeolite powder and polypropylene fiber to make a kind of anti-cracking type high-strength grouting material. Effects of different raw materials on the properties of the grouting material are researched. Experimental results showed that:by using 20 kg ultra-fine composite fume per ton in formula of grouting material,the total cementing materials dosage in the mix ratio design can be reduced 30 kg per ton,the amount of ce-ment can be saved 30 kg per ton while the flow rate of grouting material increased. By using 20 kg compound expansion agent and 10 kg zeolite powder per ton,it can reduce the 72 h early autogenous shrinkage-rate of grouting material by 46%. By using 0.6 kg polypropylene fiber per ton can improve the anti-cracking properties of grouting material.
Keywords：anti-crackinghigh-strengthgrouting materialultra-fine composite fume
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 16-19 )