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我国重庆、川东、陇西等地区盛产特细砂,而普通砂的产量有限,因而在混凝土工程中广泛地使用特细砂作为细骨料。很好地开发利用这些资源,促使人们对特细砂水泥基复合材进行了大量的研究。过去对这种材料的常规力学性能做了大量研究工作,但还难见到有关特细砂水泥基复合材断裂行为方面的研究报告。为使对特细砂水泥基复合材力学行为的认识更为全面而深入,本文阐述对特细砂水泥基复合材的断裂行为所做的研究成果。
China’s Chongqing, Chuandong, and Luxi regions produce very fine sand, but the output of ordinary sand is limited. Therefore, ultra-fine sand is widely used as fine aggregate in concrete projects. The development and utilization of these resources are very good, prompting people to carry out a lot of research on ultra-fine sand cement-based composites. In the past, a lot of research work has been done on the conventional mechanical properties of this material, but it is still difficult to see research reports on the fracture behavior of superfine sand cement-based composites. In order to make a more comprehensive and in-depth understanding of the mechanical behavior of superfine sand cement-based composites, this paper describes the research results on the fracture behavior of superfine sand cement-based composites.