The Applicability Research Of Highway Surface Material Of Guangba Highway Roadside

Gabbro and diorite take benefits of high strength,wearability and resistance against sliding,which fit to be done material of highway surface,in particular to abrasive surface.Asalt is universally optional material,which is previously used in highway sueface in Sichuan province,however only Emaishan has basalt in Sichuan Province ,and Emaishan basalt has good physico-mechanical performance and aggregate engineering specification.However Guangba highway roadside distribute localized row matieral,such asgebbro,diooite,which has rich reserves.So papers researches on the pplicability of gebbro which wil be used in the surface of guangba highway。Papers by the investigation road along the Pakistan-gabbro, and the research on diorite rock material,gabbro,diorite rock performance and the aggregate performance of gabbro, diorite rock of the performance draws the performance of gabbro and dorite ( in addition to adhesion) are in line with regulatory requirements. Through gabbro mixture of asphalt road performance research, the gabbro asphalt mixture of residual water stability, dynamic stability of the high-temperature,depth of the surface structure are to meet regulatory requirements, and the freeze-thaw Split, the cryogenic Anti-cracking performance can not meet the specifications.Through the improved research on the lack of water-stability,it draws that the gabbro asphalt mixture of water stable performance greatly improved, and high-temperature stable performance also increases.Thus it proved that the gabbro along the highway can be the road surface material.If gabbro is the material of guangba highway surface,it can save construction costs, promote local economic development.