Compressive strength and frost heave resistance of different types of semi-rigid base materials after freeze-thaw cycles  

作　　者：ZhenYa Liu JingYu Liu QingZhi Wang JianKun Liu 

机构地区：[1]School of Civil Engineering,Beijing Jiaotong University

出　　处：《Research in Cold and Arid Regions》2015年第4期365-369,共5页寒旱区科学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 51378057 and 41371081)

摘　　要：Freeze-thaw damage is the most common disease of semi-rigid bases in cold regions, which may greatly affect the dura- bility of roadways. In this study, the compressive strength and frost resistance of four different types of semi-rigid bases （lime-fly ash-stabilized sand, cement-stabilized sand, lime-fly ash-stabilized gravel, and cement-stabilized gravel） are assessed by varying the materials content. Based on freeze-thaw and compressive strength tests, this paper presents the performance of the different materials, each having different physical properties, and the optimal amounts of materials contents are proposed.Freeze-thaw damage is the most common disease of semi-rigid bases in cold regions, which may greatly affect the dura- bility of roadways. In this study, the compressive strength and frost resistance of four different types of semi-rigid bases （lime-fly ash-stabilized sand, cement-stabilized sand, lime-fly ash-stabilized gravel, and cement-stabilized gravel） are assessed by varying the materials content. Based on freeze-thaw and compressive strength tests, this paper presents the performance of the different materials, each having different physical properties, and the optimal amounts of materials contents are proposed.

关 键 词：freeze-thaw cycles semi-rigid base stabilized base 

分 类 号：U416.2[交通运输工程—道路与铁道工程]