水泥混凝土路面断裂性能研究

Study on fracture behavior of cement concrete pavement

水泥混凝土路面结构具有承载力强、整体性好等优势,但其脆性断裂行为限制了其在高等级路面结构中的应用。本文对于水泥混凝土材料的断裂性能研究方法和模型做了详细的分析,并结合道路领域研究现状来剖析断裂力学方法和混凝土断裂力学方法在水泥混凝土路面结构中应用的前景。

The advantages of the concrete pavement are the higher capacity strength and good integrality, nevertheless the brittle fracture behavior of the concrete material has limited it＇s extensive use in the express. In this paper, the methodologies and models for evaluating the concrete fracture characteristics are elaborated and analyzed in detail. Meanwhile the fracture mechanics model for the concrete is also introduced based on the background of pavement development of china, and the possibly potential application of the concrete fracture models are proposed.