AN EXPERIMENTAL STUDY ON THE EFFECT OF AGGREGATE SYSTEM ON EARLY CRACK RESISTANCE OF CONCRETE
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摘要: 混凝土中的骨料,特别是粗骨料对水泥的收缩起着约束作用,是混凝土内部阻抗水泥收缩的主要组分。然而粗细骨料作为一种地方性材料,其质量的稳定性相对较差。通过平板试验,研究骨料的品种、砂率、含泥量、体积含量等因素对混凝土早期抗裂性能的影响。Abstract: The aggregate in a concrete,in particular,the coarse aggregate has a restriction on the contraction of the cement,which is the main component resisting the contraction of the cement in the concrete. Coarse and fine aggregate,however,as a local material,has a relative poor stability. In this paper,through the plate test,it is studied the effects of aggregate species,sand percentage,clay content,volume levels ect on the early anticracking of concrete.
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Key words:
- aggregate /
- crack resistance of concrete /
- slab test
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[2] 冯乃谦. 高性能混凝土结构[M]. 北京: 机械工业出版社,2004. 张雄,张小伟. 建筑工程裂缝防治指南[M]. 北京:中国建筑工业出版社,2005. [3] 郑建岚. 钢筋混凝土结构裂缝控制指南[M]. 北京:化学工业出版社,2006.
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