全级配碾压混凝土性能研究

采用包含混凝土全部配料、且具有足够大尺寸的试件,对全级配碾压混凝土与全级配流态混凝土的基本力学性能进行了试验研究,并按常规混凝土试验方法进行了相应混凝土湿筛小试体的对比试验。该项试验为大体积碾压混凝土及流态混凝土施工提供了更接近实际的混凝土基本力学特性成果;获得了全级配混凝土与湿筛混凝土各项力学特性之比值;同时表明碾压混凝土较流态混凝土具有明显的优越性。

Performance Research of Roller Compacted Concrete with Fully-graded Aggregate

The concrete specimen with fully-graded aggregate and of sufficiently big size is used in test, the basic mechanical performance of fully-graded roller compacted and ordinary concrete investigated and the corresponding. Comparison test of small concrete specimen from wetted sieve carried out by cofiventional test method. The more practical result of basic mechanical performence for concrete is presented by the test for massive roller compacted and ordinary concrete construction,the ratios of different mechanical properties of fully-graded and wetted sieve concrete are obtained,and it is indicated that the roller compacted concrete has the obvious superiority over ordinary one.