碱激发地聚合物双液注浆材料试验与应用研究

doi:10.13722/j.cnki.jrme.2015.0984

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Abstract To overcome the disadvantages such as poor corrosion resistance，volume shrinkage at later stage and etc. of traditional slurry，a new type of alkali-activated geopolymer two-shot grouting material is put forward. Through laboratory test，the influence rule of volume fraction of sodium silicate and powder proportion on initial/final setting time，uniaxial compressive strength，erosion resistance and dry shrinkage is analyzed. Through field test，the feasibility and effect of the grouting material are studied. The results show that gel time of alkali-activated geopolymer grouting material can be controlled between a few seconds and a few minutes. Under specified conditions，when the volume fraction of sodium silicate is 20% or mass ratio of slag to metakaolin is 1∶2，the induration can have the highest compressive strength. In acid solution，strength loss of induration of cement slurry is 50%，but strength loss of induration of alkali-activated geopolymer grouting material is only 20%. Alkali-activated geopolymer grouting materials drying shrinkage rate gradually decreases with the increase of the content of metakaolin. However，when the content of metakaolin is more than 30%，the influence of metakaolin on the volume shrinkage rate of the induration significantly weakens. Alkali-activated geopolymer two-shot grouting material makes full use of industrial waste，its proportion can be adjusted according to the engineering requirement，and its various performances can meet the requirements of grouting treatment.

Key words： building materials alkali-activated geopolymer grouting material size performance field test

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	Articles by authors
	WANG Jian
	ZHANG Lewen
	FENG Xiao
	ZHAO Shaolong
	WANG Hongbo

Cite this article:

WANG Jian,ZHANG Lewen,FENG Xiao, et al. EXPERIMENT AND APPLICATION RESEARCH ON ALKALI-ACTIVATED GEOPOLYMER TWO-COMPONENT GROUTING MATERIAL[J]. , 2015, 34(S2): 4418-4425.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0984 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/4418

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