大掺量磨细矿渣技术在南水北调中线的应用研究  

The Application Research of Large Amount Grading Fine Slag Technique Used in the Middle Line of South-to-North Water Diversion Project

作　　者：李广智[1] 张振[2] 杨慧[2] 王红[2] 

机构地区：[1]同济大学 [2]天津市水利科学研究所

出　　处：《水利水电工程设计》2008年第2期43-46,共4页Design of Water Resources & Hydroelectric Engineering

摘　　要：南水北调中线混凝工程采用骨料存在疑似碱活性问题,局部地段地下水位偏高,存在地下水侵蚀问题。为了有效抑制以上存在问题,对大掺量磨细矿渣技术进行研究。试验结果表明,大掺量磨细矿渣技术能够提高混凝土密实性,改善混凝土中孔隙大小及分布,有效抑制骨料碱活性,提高混凝土抗氯离子侵蚀能力。The problem of uncertain alkali active is existed in aggregate used for the concrete of middle line of South-to-North Water Diversion Project.The underground water in some local sections is a little higher and the problem of underground water erosion is existed.In order to control the above-mentioned problems effectively,the research of large amount grading fine slag technique is carried out.It can be shown from test result that large amount grading fine slag technique can raise the compactness of concrete and improving the distribution of pore space size in concrete,control aggregate alkali active effectively and can raise the erosion capacity of concrete against oxidative ion.

关 键 词：混凝土 大掺量磨细矿渣 耐久性能 南水北调 

分 类 号：TV431[水利工程—水工结构工程]