混凝土材料的真实断裂能研究

Study on the Actual Fracture Energy of Concrete Materials

在对混凝土断裂面进行测定的基础上提出了真实断裂能的概念 ,并试验研究了真实断裂能与材料组成之间的变化规律 .试验结果表明 :真实断裂能几乎不随集料粒径的变化而变化 ,随集料品种的变化较小 ,随水胶比的降低而增大 .

The concept of actual fracture energy of concrete divided by actual fracture surface was proposed. The relationships between actual fracture energy and materials parameters were investigated by the experimental method. In contrast with fracture energy divided by project plane, the experimental results showed that actual fracture energy increases little with the increase of aggregate size, varies not remarkably for different types of aggregate, enhances with the decrease of water-binder ratio.