Research on Grading Design of SAMPAVE Asphalt Mixture

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Research on Grading Design of SAMPAVE Asphalt Mixture

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[1]ZHOU Yan,CHEN Jiaofa,LIU Dan,et al.Research on Grading Design of SAMPAVE Asphalt Mixture[J].Journal of Zhengzhou University (Engineering Science),2010,31(01):33-.

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 31 Number of periods: 2010 01 Page number: 33- Column: Public date: 2010-01-30

Title:: Research on Grading Design of SAMPAVE Asphalt Mixture

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

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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．

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