大掺量粉煤灰高性能混凝土的试验研究

Experimental Study on PFA High Performance Concrete with High Replacement Levels

探讨了中等强度大掺量粉煤灰高性能混凝土的工作性能、力学性能、变形性能以及耐久性能．在大量试验的基础上，对不同掺量粉煤灰高性能混凝土的坍落度损失、抗压强度、干缩以及耐久性等性能进行了全面地分析．研究表明，大掺量粉煤灰高性能混凝土在道路工程、大体积工程以及房建工程等方面有着广阔的应用前景．

In this paper, the workability,mechanical properties, deformation as well as durability of middle strength PFA high performance concrete with high replacement levels are investigated. Based on many tests, the slump loss,compressive strength,drying shrinkage and durability of PFA high performance concrete are analyzed comprehensively. Results indicated that PFA high performance concrete with high replacement levels will have promising applicatlon prospects in many flelds such as hlghway, large volume concrete englneering and house buliding engineering.