Study on the mechanical performance and application of the composite cement–asphalt mixture

ABSTRACT

The rigidity of matrix mixture asphalt (MMA) is increased by the combination with cement mortar, and the performance of asphalt pavement has been better changed in the stabilities of high temperature rut and low temperature cracking and water damage. The research problems in this project mainly focus on the combinations among cement mortar and MMA and mechanical performance of composite cement–asphalt mixture (CCAM), etc. In the project, the CCAM is produced by pouring cement mortar into MMA, and the mechanical performance of CCAM has been researched. The research contents include the production technology and mechanical performance and construction technology of CCAM. Through the test data of CCAM in the mechanical performance, and compared with the performance of AC-16 MMA, the paper has analysed the mechanical performance and application of CCAM in high temperature rut and low temperature cracking and water damage, the components design and production technology and construction technology of CCAM have been put forward. The rigidity of MMA has been improved and the mechanical performance of CCAM has also met the design standards, it is suggested that CCAM can be applied as a new composite pavement materials.

KEYWORDS:

• Road engineering
• composite cement–asphalt mixture
• matrix mixture asphalt
• cement mortar
• mechanical performance

Acknowledgments

The authors gratefully appreciate the supports from the province key laboratory of road in Northeast Forestry University and the foundations for the project of Heilongjiang Traffic and Transportation Department.