粉煤灰掺量对软弱坝基灌浆结石体力学特性影响  

Effect of fly ash content on physical properties of grouting stone in soft dam foundation

作　　者：康存锁[1] 

机构地区：[1]新疆水利水电勘测设计研究院勘测总队,新疆昌吉831100

出　　处：《吉林水利》2018年第1期11-13,共3页Jilin Water Resources

摘　　要：为分析粉煤灰掺量对软弱坝基灌浆结石体力学特性影响,分别对不同粉煤灰掺量灌浆结石体进行单轴抗压强度试验。结果表明:掺入粉煤灰和减小水灰比均能延长结石体初凝时间;不同水灰比下,粉煤灰最优掺量均为5%,粉煤灰掺量为5%时,灌浆结石体抗压强度和变形模量最大;粉煤灰掺量一定时,随水灰比增大,灌浆结石体抗压强度与变形模量均逐渐减小。In order to analyze the influence of the amount of fly ash on the physical properties of the grouting stone of soft dam foundation,uniaxial compressive strength tests were carried out on the grouted stone body with different content of fly ash.The results show that the incorporation of fly ash and reduce water cement to extend the initial setting time of concretion ratio could;under different water cement ratio,fly ash and the optimal dosage was 5% ,with 5% fly ash ,grouting concretion compression strength and deformation modulus maximum;when the amount of fly ash,with water cement ratio increases,the deformation modulus and compressive strength of grouting concretion decrease.

关 键 词：软弱坝基 灌浆 结石体 力学特性 

分 类 号：TV423[水利工程—水工结构工程]