The Application of Large Particle Size Hot Mix Asphalt Macadam Roadbase Structure in the Maintenance Overhaul Engineering

Abstract

In recent years because of the growing volume of traffic, axle load and tire unit pressure increases, as well as in rough weather, under the action of the traditional cement stabilized macadam roadbase structure is easy to cause more reflection crack, rutting, pumping the asphalt such as early diseases, seriously affect the service life of pavement, and in the construction process for keeping in good health cycle is long and bring greater side to traffic edge construction of traffic organization pressure. Xiaogan belongs to the area of low winter air temperature and the high summer air temperature, traffic flow, high underground water level, the large size macadam base can reduce pavement cold cracking diseases, improve the pavement anti-rutting ability, so as to improve the durability of asphalt pavement.