SAMPAVE沥青混合料级配设计研究-《郑州大学学报(工学版)》

文章信息/Info

Author(s):: ZHOU Yan; CHEN Jiaofa; LIU Dan; etc; 1．Key Laboratory for Special Area Highway Engineering of Ministry of Education，Chang’an University，Xi’an 71 0064。Chi—na；2．School of Materials Science and Engineering，Chang’an University，Xi’an 710061，China；3．Guangdong CAC Engineering Consultants Co．Ltd．，Guangzhou 5 1 0627，China；4．School of Civil Engineering，Beijing Jiaotong University，Beijing100044。China

Keywords:: SAMPAVE asphalt mixture; stress absorbing layer; varying i method; grading range; reflectivecracking

摘要:: SAMPAVE(Stress Absorbing Mixtures Pavement)沥青混合料是一种新型的延缓和防止反射裂缝的应力吸收层材料,具有抗裂、防渗、粘结等特性.根据变i法对SAMPAVE混合料进行矿料组成设计,并与AC-5、美国规范、科氏公司推荐的级配范围进行比较.结果表明,对于变i法设计的SAMPAVE混合料,级配上限、级配下限确定的沥青用量在设计工程级配沥青用量的±0.3%范围内,满足生产控制的要求,且SAMPAVE混合料具有优良的耐高温、耐低温、抗变形、耐疲劳、抗水损害等路用性能.

Abstract:: SAMPAVE(Stress Absorbing Mixtures Pavement)asphalt mixture is a new stress absorbing mixturefor delaying or restraining reflective cracking．It has the characteristics of anti-cracking，anti—leakage and be—ing adhesive．Based on the varying i method，the paper designs mineral aggregate composition of SAMPAVEasphalt mixture and compares it with China AC-5，the United States standard，KOCH corporation recommendgrading ranges recommended by KOCH eorp oration．The result shows that under the varying i method grading，the optimum asphalt content at upper and lower limit is in the range of±0．3％project grading．whichcan meet the production control demand of stress absorbing layer mixture．And SAMPAVE mixture has excel—lent hiIgh or low temperature resistance，anti-deformation。anti-fatigue and anti-water damage road performance．