高等级公路沥青稳定碎石柔性基层的探讨

Approach to Flexible Asphalt-Stabilized Macadam Base of High-Type Highway

沥青稳定碎石基层不仅具有较高的抗剪强度、抗弯拉强度和耐疲劳性,与半刚性基层相比不易产生收缩开裂和水损害,而且具有较好的经济性。介绍了沥青稳定碎石基层的特点、性能要求;详细阐述了沥青稳定碎石基层混合料的类型、级配、配合比设计及其施工要点;明确指出沥青稳定碎石基层具有广阔的应用和发展前景。

The asphah - stabilized macadam base possesses not only a higher shear resistance, bending and tensile strength as well as fatigue resistance, so it isnt easy to produce shrinkage crack and water injury by contrast to semi - rigid base, but also a better economy. The paper introduces features and requirements for property ; details types,gradation, proportioning design and gists for construction ; definitely indicates the base owns broad applied prospects.