It is feasible to substitute the coarse aggregate concrete by waste concrete aggregate.
用废混凝土骨料完全代替粗骨料配制混凝土是可行的。
Limestone is regarded as the original concrete aggregate to prepare recycled aggregate.
利用石灰石作基体混凝土集料制备可循环集料。
In the research field, the theory of concrete aggregate frame model (CAFM) is the latest.
在这一领域，混凝土架构模型理论是研究混凝土耐火性的最新科学指导理论。
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