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 ;计算了不同集料体积率和不同集料混凝土断裂能 ,测试混凝土断裂时的声发射事件数 ;运用混凝土断裂力学参数和声发射事件数对作用机理进行了验证 Two kinds of mechanism of aggregate failure in high-strength concrete are put forward, and the two mechanisms are analyzed from the viewpoint of energy. The volume fraction of aggregate and the fracture energy of aggregate are calculated, and the number of acoustic emission events at the time of failure of concrete is measured. Fracture mechanics parameters and the number of acoustic emission events on the mechanism of action was verified