论文部分内容阅读
本文依据水泥稳定级配碎石混合料的收缩开裂机理,阐述了江苏省无锡至张家港高速公路水泥稳定级配碎石(底)基层的裂缝控制理念、技术要求、控制要点以及工程效果。工程实践表明:针对半刚性基层材料物理和力学特性采用合理的裂缝控制技术,可以达到有效地降低工程成本、显著地减少裂缝数量的效果,半刚性基层裂缝控制技术在高速公路中的成功应用对于提高公路工程质量,促进社会和经济效益均具有积极的意义。
Based on the mechanism of shrinkage and cracking of the cement stabilized graded aggregate, this paper describes the concept, technical requirements, control points and engineering effects of the crack control of the cement stabilized graded crushed stone (bottom) of the Wuxi-Zhangjiagang expressway in Jiangsu Province. The engineering practice shows that the reasonable crack control technology for the physical and mechanical properties of the semi-rigid base material can effectively reduce the project cost and significantly reduce the effect of the number of cracks. The successful application of semi-rigid base crack control technology in the expressway Improve the quality of highway projects and promote social and economic benefits are of positive significance.