复合混凝土最优配合比设计及其抗冻性能研究  

A study on optimum mixture ratio design and frost resistance of compound concrete

作　　者：杜天玲[1] 孙庆合[2] 牛宇涛[2] 

机构地区：[1]交通部公路科学研究院,北京100088 [2]宁夏大学土木与水利工程学院,宁夏银川750021

出　　处：《宁夏工程技术》2007年第4期385-388,共4页Ningxia Engineering Technology

摘　　要：为了探讨在混凝土中掺入钢渣、粉煤灰、矿渣等材料对混凝土冻融破坏的作用机理,采用宁夏地区工业废料作为混凝土的掺合料,通过正交试验及混凝土抗冻性能试验,确定出了混凝土最优配合比为A1B2C3D3E3.由宏观和微观试验结果表明:优化钢渣、粉煤灰、矿渣掺量后制备的复合混凝土强度增长显著;经100次的冻融试验,抗冻效果比基准混凝土显著.In this paper, making use of waste materials （fly-ash, slag, steel dregs） of industry in Ninxia, the frost-resistance performance of compound concrete was studied by means of orthogonal experimental design. Through variance analysis, the theoretical optimum project of concrete proportion had been determined： AIB2C3D3E3. Results of research by and microstructures showed that strength of concrete with steel evidence. By testing of 100 times freezing-thawing experiments, slag, and fly-ash contents of optimization has increased in the frost-resistant capability of compound concrete is better than that of common concrete.

关 键 词：混凝土 钢渣 粉煤灰 矿渣 复合 强度 抗冻性 

分 类 号：TU502.6[建筑科学—建筑技术科学]