Asphalt highway construction method

Abstract

The invention discloses an asphalt highway construction method, which comprises the following steps of: 1, leveling a roadbed, namely filling sand and gravel materials in hollow positions on the roadbed, and leveling and compacting the roadbed by using a leveling machine; The method has the beneficial effects that through rapid laying of the base layer and the asphalt surface layer, the watering curing process of the base layer is omitted, the base layer is converted from bare artificial curing to closed curing after covering of the asphalt surface, curing conditions are more favorable, the curing period of the base layer is canceled and shortened, and the construction efficiency of the asphalt road is greatly improved. Meanwhile, the change amplitude of the water content in the base layer is small, the defect that the change amplitude of the water content of the base layer is large due to manual curing is overcome, and reduction and avoiding of shrinkage cracks caused by the change of the water content of the base layer are facilitated; and furthermore, the asphalt surface layer and the base layer are compressed and formed through inosculating after fast laying. The pushing deformation between the asphalt surface layer and the base layer when the asphalt road is used after construction is effectively avoided, and the service life of the asphalt road is prolonged.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to an asphalt road construction method. Background technique [0002] Asphalt pavement refers to various types of pavement paved with asphalt materials mixed with mineral materials. Asphalt binder improves the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. [0003] However, when the current asphalt road is constructed according to the traditional construction method, the road base is mainly maintained by artificial watering. During the artificial watering process, the evaporation of water in the asphalt road base is relatively affected by factors such as external temperature. The asphalt road base layer is prone to dry cracks due to lack of water. At the same time, the bonding stre...

AI Technical Summary

Problems solved by technology

[0003] However, when the current asphalt highway is constructed according to the traditional construction method, the road base is mainly maintained by artificial watering. During the artificial watering process, the evaporation of water in the asphalt road base is relatively affected by factors such as external temperature. The asphalt road base layer is prone to dry cracks due to lack of water. At the same time, the bonding strength between the asphalt road surface layer and the base layer after being laid by traditional construction methods is poor. With the increase of road use time, the asphalt road surface It is easy to produce a shift between the layer and the base layer, thereby accelerating the damage of the asphalt road and reducing the service life of the asphalt road. In addition, in the current asphalt road construction process, the final result of the asphalt road is often caused by irregular operations and mechanical failures during the construction process. Poor construction quality