ABSTRACT
Currently in China, pavement of many road sections had been damaged far earlier than the service life designed due to heavy-load traffic. Thus, a particular research was implemented in China, on the support of the freeway from Zhungeer to County Xinghe in inner mongolia autonomous region, to study on the influence of heavy load traffic on cement concrete pavement and load control. The added thickness of pavement structure has been calculated. The influences of factors on the maximum load-bearing capacity were analyzed. The factors were temperature grade, loading location, concrete flexure strength and reliability coefficient. According to the actual situation, the maximum axle loads for pavement in heavy-load direction and light-load direction were calculated. The control value of axle load and economical axle load were gained based on load stress level and accumulated action times of axle load, with modified fatigue stress calculating formula.
