Analysis and evaluation on void condition of China's airport cement concrete pavement

Abstract

Abstract:

The disease of void is very common in airport cement concrete pavement,and it has very significant influence to pavement's structural performance. Based on 56 airports'void test data,the present situation of void beneath airport cement concrete pavement in China is evaluated. Through the use of statistics'correlation theory,the relationship between void rate and airport's using time is analyzed. Through the establishment of ABAQUS 3D-FEM model,the influence of all kinds of void to structural performance of airport cement concrete pavement is analyzed. The result shows that pavement void rate will be a significant increase with increasing of pavement using time:and loading stress of airport cement concrete pavement will increase more than 70% when void condition gets serious.

Key words: airport, cement concrete pavement, void, pavement using time, finite element, ABAQUS

CLC Number:

V351.11

TENG Li-peng,TAN Yue,CHAI Zhen-lin. Analysis and evaluation on void condition of China's airport cement concrete pavement[J]. .

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