Affiliations: [a] Guangzhou Xiaoning Institute of Roadway Engineering, Co, Ltd, Guangzhou, Guangdong 510640, China | [b] School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, Guangdong 510640, China
Correspondence:
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Corresponding author: Jiang-Miao Yu, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, Guangdong 510640, China. E-mail: [email protected].
Abstract: Because of its strong bearing capacity, good stability and easy control of construction technology, cement stabilized graded macadam was widely used in highway pavement structure. In order to solve its characteristics of easy cracking, relevant researchers have carried out systematic studies on it, but such studies did not involve the large volume and large scope of the structural layer, and only carried out research on the specimen and small scope. Based on engineering project, the influence of dust content and cement content on the cracking was studied by adjusting the parameters and paving the test section during the production process. At the same time, the cracks in the project were counted, and the influences of exposure time, structural level, traffic load and construction level on the cracks in the cement stabilized graded macadam were analyzed. The relationship between crack spacing and exposure time is established, and through comparative analysis, it is found that construction level is the most important factor affecting crack spacing.
