再生沥青骨料在水泥混凝土中的性能研究

Study on the Performance of Recycled Asphalt Aggregate in Cement Concrete

本文采用再生沥青骨料代替天然细、粗骨料,制备了一系列水泥混凝土,探究了不同RAP骨料添加量的水泥混凝土性能,评价指标包括:坍落度、含气量、密度、抗压强度、弹性模量等。试验结果表明,随着再生沥青骨料置换量的增加,混凝土的抗压强度和弹性模量均有所降低,但不影响混凝土的正常使用。In this paper, recycled asphalt aggregate is used to replace natural fine and coarse aggregate to prepare a series of cement concrete, and the performance of cement concrete with different RAP aggregate addition amounts is explored. The evaluation indexes include slump, gas content, specific gravity, compressive strength, elastic modulus, etc. The test results show that the compressive strength and elastic modulus of concrete decrease with the increase of regenerated asphalt aggregate displacement, but it does not affect the normal use of concrete.