Study on methods for improving the anti-pumping performance of airport cement concrete pavement

Abstract

Abstract:

Pumping is a common defect of cement concrete pavement,and it would further cause the void defect,which has much effect on the loading capacity of pavement structure. Through analyzing the formation mechanism of pumping,this paper proposes three measures to improve the anti-pumping performance of airport concrete pavementin structural design. These measures are increasing the thickness of pavement,increasing the joint load transfer capacity and increasing base strength. Using the finite element software,the effects of these different measures are analyzed. The result is that increasing joint load transfer capacity is the best,increasing the base strength takes second place,and increasing the thickness of pavement is the worst.

Key words: airport, anti-pumping, three-dimensional finite element, cement concrete pavement, void, structural design

CLC Number:

U8
V351.11

LUO Yong, YUAN Jie. Study on methods for improving the anti-pumping performance of airport cement concrete pavement[J]. Journal of Civil Aviation University of China, 2013, 31(4): 19-22.

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Study on methods for improving the anti-pumping performance of airport cement concrete pavement

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