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多孔混凝土属于骨架空隙结构,其强度取决于内部起胶结作用的水泥石性质、集料特性及浆集比等。采用振动法成型多孔混凝土试件,标准养生后测其抗压强度与劈裂强度。试验结果表明:多孔混凝土抗压强度早期增长较快,符合线性关系,后期强度发展较慢,符合对数关系;长龄期劈裂强度与28天劈裂强度之间符合对数关系。
Porous concrete belongs to the framework of the void structure, its strength depends on the internal cementing stone properties, aggregate characteristics and the ratio of aggregate. Vibration method using porous concrete specimens, the standard health test after the compressive strength and splitting strength. The experimental results show that the compressive strength of porous concrete increases rapidly in the early stage, which accords with the linear relationship and the late strength develops slowly, which is logarithmic. The logarithmic relationship between long-term splitting strength and 28-day splitting strength is accordant.