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 study results could be used in the probability fracture analysis and construction quality control of interface between coarse aggregate and hardened cement mortar.
通过断裂韧性分布特性的研究，将为粗骨料与硬化水泥浆体界面概率断裂分析与施工控制提供了参考依据。
It has been found that the LOCAL aggregate characteristic features are important in the cracking process and mechanism of fracture.
认识到混凝土局部的结构特征对于探讨其破坏过程和断裂机理是很重要的。
The paper advances two mechanisms about effect of aggregate during fracture of high strength concrete and adopts the point of energy to analysis of the mechanisms.
提出集料在高强混凝土断裂过程的两种机理，并采用能量观点分析这两种机理；
Along with the increase of age, its fracture toughness grows, and the elevated range is in accordance with the natural aggregate concrete basically;
再生混凝土断裂韧度随龄期的增加而提高，提高的幅度与天然骨料混凝土基本一致，其趋势在增加；
Along with the increase of age, its fracture toughness grows, and the elevated range is in accordance with the natural aggregate concrete basically;
再生混凝土断裂韧度随龄期的增加而提高，提高的幅度与天然骨料混凝土基本一致，其趋势在增加；
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