摘要
轻集料混凝土因其优异的性能特征被越来越多地应用在路桥与高层建筑中。泵送匀质性是轻集料混凝土研究与应用的重要方面。介绍了轻集料混凝土匀质性评价方法的研究现状,包括目测观察法、分层度筒法、界面观察法及综合评定法,认为匀质性的测试应简单易行且与混凝土耐久性相结合综合评定,并提出了泵送匀质性评价方法的研究发展方向。
Light aggregate concrete is widely used in bridge and high-rise buildings because of its excellent performance. Pumping homogeneity is one of the most important aspects in the research and application of light aggregate concrete. Development on evaluation methodology of pumping homogeneity of lightweight aggregate concrete is introduced, including visual observation method, hierarchical cone method, interface method of observation and compre- hensive evaluation method. For testing should be simple, easy and combined with concrete durability to comprehensive evaluation. Meanwhile the future research directions are proposed.
关键词
轻集料混凝土
泵送
匀质性
评价方法
lightweight aggregate concrete, pumping, homogeneity, evaluation methodology
