This paper present a comparison experiment on dense-graded AK-13A asphalt mixture mixed with mineral fiber.

Influence of aggregate grading on performance of asphalt mixture;

Application of aggregate gradation test methods of VCA_(DRF) and VCA_(AC) for SAC13;

Effect of aggregate gradation on performance of asphalt mix at low temperature;

Comparison testing research on aggregate gradation of ultra-thin layer asphalt concrete SAC-10;

Targeting at humid and rainy weather conditions in Southern China,this paper introduces carrying out mineral aggregate gradation design and inspection to continuous dense gradation asphalt mixture with Bailey method.

So,aiming at the specific problem,the material mix proportion design and improvement of construction equipment and construction technique are the fundamental guarantee of advancing the quality of asphalt concrete,especially,mineral aggregate gradation,heating temperature of asphalt and aggregate,as well as compaction and formation are the most cruci.

The author introduces the dynamic quality control in the construction of expressway,discusses some key indexes and relationship related with project quality,and aiming at the dynamic quality control of mineral aggregate gradation analyzes in detail,provides treatment scheme at the same time,so as to improve the stability of construction quality.

The article carries on the comprehensive analysis from the mineral grading aspect,elaborates it s influence of the function of highway,and puts forward the prevention measures.