外加剂和矿物掺合料在机制砂高强混凝土中使用的要点

Key Points of Admixture and Mineral Admixture in Manufactured Sand High-strength Concrete

近年,笔者工作的贵州交通基础设施建设速度不断加快,机制砂混凝土在交通基础建设中大规模使用,特别是在高速公路中用的C50、C55和C60机制砂混凝土的大规模应用在桥梁关键部位,如何确保机制砂高强混凝土符合质量合格、技术先进、安全可靠、经济合理是当前形式的要求,是一个现阶段急需解决的问题。

In recent years,transportation infrastructure construction in Guizhou has increasingly developed rapidly.Sand concrete has large-scale used in the construction transport infrastructure,especially in the highway using the C50,C55 and C60 large-scale application of sand concrete in bridge key parts,how to ensure consistent with high-strength concrete sand quality standards,advanced technology,safe,reliable,economical and reasonable requirements of the current form and is a current pressing problems.