机制砂配制泵送防水混凝土的研究和应用  

Study and Application on Pumping Waterproof Concrete Prepared by Manufactured Sand

作　　者：李果[1] 白文辉[2] 

机构地区：[1]绍兴职业技术学院,312000 [2]绍兴文理学院工学院,312000

出　　处：《混凝土与水泥制品》2013年第1期79-82,共4页China Concrete and Cement Products

基　　金：浙江省高校科研计划项目(Y201224280)

摘　　要：针对隧道二次衬砌混凝土对强度要求较低，对抗渗要求较高的情况，用低成本的含石粉机制砂，配制出了强度等级为C25，抗渗等级为P8的泵送混凝土。试验表明，机制砂中石粉含量为12％-14％时，配制出的混凝土强度较高；石粉含量为8％-16％时，能满足使用要求。Aiming at the situation that the lower strength but higher permeability resistance requirements for the tunnel secondary lining concrete, the C25 pumping concrete with P8 permeability resistance is prepared with the low cost stone powder manufactured sand. The experiment shows that when the content of stone powder is 12%-14%, the strength of concrete is higher, and when the content of stone powder is 8%-16%, the concrete can satisfy the application demand.

关 键 词：机制砂 泵送防水混凝土 石粉 应用 

分 类 号：TU528[建筑科学—建筑技术科学]