Research on Marshall Test Evaluation Method Based on Anti-cracking Material

Abstract

According to the research shortage of Marshall test method in anti-cracking material application,in accordance with results of gyratory compaction test for different number of Marshall compaction test,with porosity as evaluation indexes,the best compaction times of Marshall test of anti-cracking layer material was determined as double compaction 75 times.Through the regression of gyratory compaction test and Marshall test results,and combined with the characteristics of anti-crack material and related technical specification,determined the technical requirements of Marshall test which is suitable for anti-cracking layer material,got the optimal asphalt content was 7.5%,which was close to gyratory compaction test results 7.6%.The experimental results showed that:the research of Marshall test method for anti-cracking material has certain accuracy and reliability.The study results can provide important reference for determining the optimal asphalt content of anti-cracking material and the popularization and application of anti-crack material in road reconstruction project.