The curing condition, the maximum size of coarse aggregate and silica fume have certain effects on the strength, fracture properties and brittleness of concrete.
养护条件，粗骨料最大粒径和硅灰对混凝土的强度，断裂性能和材料脆性都有一定影响。
The influence of recycled coarse aggregate replacement rate on properties of concrete with the same slump is discussed in the paper.
系统研究了坍落度相同的情况下再生粗骨料取代率对混凝土基本性能的影响。
And analyses that the five factors have an effect on the workability and mechanical properties of recycled coarse aggregate high strength concrete.
分析这五个因素对再生混凝土工作性能和力学性能的影响。
On the physical properties, many deferent ingredients of recycled concrete are tried by adjusting concrete mixture ratio including the recycled coarse aggregate, FDN and fly ash.
在再生混凝土基本性能方面：通过采用不同的水灰比、不同的再生骨料的取代率以及不同的减水剂掺进量，配制再生混凝土。
Various physical and mechanical properties of RCA from this technology were investigated according to Standard and Test Method for the Coarse Aggregate of Normal Concrete (JGJ 52-2006).
按照《普通混凝土用碎石或卵石质量标准和检验方法》（JGJ52-2006）测试了由该工艺生产的再生骨料的物理力学性能指标。
Various physical and mechanical properties of RCA from this technology were investigated according to Standard and Test Method for the Coarse Aggregate of Normal Concrete (JGJ 52-2006).
按照《普通混凝土用碎石或卵石质量标准和检验方法》（JGJ52-2006）测试了由该工艺生产的再生骨料的物理力学性能指标。
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