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水泥-水玻璃双液浆材料的性能研究 被引量:1
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作者 张崇峻 《工程机械与维修》 2023年第5期207-209,共3页
以北京16号线地铁施工为背景,将可硬化抗剪性浆液分别与水玻璃、水泥浆体混合形成双液浆,并通过室内试验对两类双液浆的密度、强度等指标进行了对比分析。研究结果表明:当加入水泥浆体B液时,双液浆密度所有提高,泌水率会因所加水泥浆液... 以北京16号线地铁施工为背景,将可硬化抗剪性浆液分别与水玻璃、水泥浆体混合形成双液浆,并通过室内试验对两类双液浆的密度、强度等指标进行了对比分析。研究结果表明:当加入水泥浆体B液时,双液浆密度所有提高,泌水率会因所加水泥浆液水灰比的减小而减小,稠度降低速度和浆液8h抗剪强度与其相反,表现出随之增大的趋势。在加入水泥B液后,浆液抗压强度得到提升,且提升幅度随着水泥水灰比的减小而增大。当加入水玻璃B液时,双液浆的泌水率和密度明显减小,稠度和抗剪强度降低程度随着所加水玻璃波美度的提高而提高,且水玻璃在增强双液浆抗剪强度方面有更强的效果。双液浆28d强度在加入水玻璃B液后都处于0.8MPa之上。假如B液选择水泥浆体,其水灰比要在0.33以下才能使双液浆各项指标达到工程标准。假如B液选择水玻璃,其波美度要超过12Be'才能使双液浆各项指标达到工程标准。 展开更多
关键词 可硬化剪性浆液 水玻璃 双液浆 浆液抗压强 剪强度
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Effect of aggressive pH media on peat treated by cement and sodium silicate grout 被引量:1
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作者 S.Kazemian A.Prasad +3 位作者 B.B.K.Huat J.Bolouri Bazaz T.A.Mohammed F.N.Abdul Aziz 《Journal of Central South University》 SCIE EI CAS 2011年第3期840-847,共8页
The effects of aggressive peat nature (pH) on the strength of peat treated by cement and cement-sodium silicate grout were investigated by evaluating the changes in unconfined compressive strength,moisture content,and... The effects of aggressive peat nature (pH) on the strength of peat treated by cement and cement-sodium silicate grout were investigated by evaluating the changes in unconfined compressive strength,moisture content,and scanning electron microscopy (SEM) of samples with time in different pH media.The results indicate that peats treated by cement-silicate have higher strength than peats treated by cement,due to an increase in pH value of the media.Furthermore,cement and cement-silicate are highly effective in reducing the moisture content and void ratio of the treated peats.The microstructures of treated peats support the laboratory test results. 展开更多
关键词 PEAT aggressive pH media CEMENTATION sodium silicate GROUT microstructure
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