粗骨料掺入对超高性能混凝土性能影响研究综述

用粗骨料替代部分水泥、砂浆等高成本材料是超高性能混凝土领域中的一个重要研究方向。通过梳理与分析近年来国内的相关研究成果,发现当选择玄武岩材质、粒径尺寸在5~10 mm和5~15 mm以及体积掺量在一定范围内的粗骨料时,能够改善超高性能混凝土的抗压强度、弯曲韧性等性能指标。

Summary of Research on Effect of Mixing Coarse Aggregate on Performance of Ultra-high Performance Concrete

It is an important research direction to use the coarse aggregate to replace some high-cost materials of cement and mortar in the field of ultra-high performance concrete.Through combing and analyzing the related domestic research results in recent years,it is found that the selection of coarse aggregates such as basalt materials,particle sizes between 5~10 mm and 5~15 mm,and the volume content within a certain range can improve the compressive strength,flexural toughness and other performance indicators of ultra-high performance concrete.