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Durability of Cement Grouting Curtain at Danjiangkou Dam
Author(s): 
Pages: 40-43,67
Year: Issue:  9
Journal: Journal of Yangtze River Scientific Research Institute

Abstract: 为了解丹江口大坝初期工程河床坝段防渗帷幕的耐久性,对后期补强灌浆提出建议,采用理化分析及渗透试验等方法对帷幕中的水泥结石进行了相关试验研究.结果表明:多数检查孔芯样中的水泥结石水化产物结构较致密,矿物成分和化学成分未见明显异常;胶结较好的水泥结石芯样抗渗性能较好,渗漏溶蚀出的CaO少,且随着渗透时间延长,CaO的溶蚀速率减缓;对于水泥结石致密的帷幕,估算的防渗有效年限为100年以上,说明水泥灌浆帷...
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