大粒径沥青混合料力学性能试验研究  

A Study on Experiment of Mechanical Properties of Large Stone Asphalt Mixes

作　　者：冯俊领[1] 张起森[2] 高和生[3] 陈一飞[3] 

机构地区：[1]同济大学交通运输工程学院,上海市200092 [2]长沙理工大学公路工程学院,长沙市410076 [3]解放军理工大学工程兵工程学院,南京市210007

出　　处：《公路》2006年第2期157-161,共5页Highway

摘　　要：采用静压成型×h=150 mm×150 mm大粒径沥青混合料(LSAM)试件,通过大量的室内试验,研究分析了公称最大粒径分别为37.5 mm和31.5 mm的LSAM回弹模量、无侧限抗压强度、劈裂抗拉强度的力学指标。试验结果表明,LSAM的抗压回弹模量是普通沥青混凝土的1.3倍左右;LSAM的回弹模量、抗压强度和劈裂抗拉强度分别是半刚性材料的2倍左右。On the basis of the laboratory tests of Ф×h=150mm×150mm specimens of large stone asphalt mixes （LSAM）, which are moulded by static-load machine, the unconfined compressive strength, resilient modulus, splitting-tension strength of the large stone asphalt mixes are studied and analyzed, whose maximum nominal sizes of aggregate are 37. 5 mm/31.5 mm. Results of tests show that the resilient modulus of LSAM is about 1.3 times greater than those of the normal asphalt concretes and the mechanical properties of LSAM are are about 1 times greater than those of the semi-rigid materials.

关 键 词：道路工程 大粒径沥青混合料 回弹模量 抗压强度 劈裂抗拉强度 

分 类 号：U414.03[交通运输工程—道路与铁道工程]