Cause Analysis on the Void under Slabs of Cement Concrete Pavement

2nd International Conference on Materials Engineering and Nanotechnology

材料科学;物理学

Wen, Li^1 ; Zhu, Guo Xin^1 ; Baozhu^1

Communication and Transportation School, Changsha University of Science and Technology, China^1

关键词: Cement concrete pavements;    Cross-joint;    Evolution law;    Formation process;    Systematic analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/205/1/012011/pdf
DOI  :  10.1088/1757-899X/205/1/012011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper made a systematic analysis on the influence of the construction, environment, water and loads on the void beneath road slabs, and also introduced the formation process of structural void and pumping void, and summarizes the deep reasons for the bottom of the cement concrete pavement. Based on the analysis above, this paper has found out the evolution law of the void under slabs which claimed that the void usually appeared in the slab corners and then the cross joint, resulting void in the four sides with the void area under the front slab larger than the rear one.