外文翻译----浅析沥青混凝土路面的施工质量控制

附录

Asphalt Concrete Pavement Construction Quality Control

Li Gang, low Income

Abstract

This paper is the combination of highway pavement maintenance based on the work, by analyzing the formation mechanism of asphalt concrete pavement, asphalt pavement during the construction period on how the construction quality control issues to present their views and experiences, to prevent the development of Pavement Distress on the current asphalt concrete pavement by the phenomenon of high incidence of disease has a certain reference.

Keywords: Highway; asphalt concrete pavement; Construction Quality Control

1 A road surface disease and major hazards

1.1 surface pits

Highway pavement surface pits is the earliest of the disease, especially in the rainy season. Likely to cause road bumps, the high speed of the car and the large tonnage of the vehicles, the larger the depth of deep trenches and even endanger traffic safety. In addition there are destructive pit road development, the so-called "do not fill a hole, big hole to suffer."

1.2 Pavement Rutting and own package

Pavement rutting season usually occurs in high temperature, especially after the hot season will still be within one month of development.

Owned by packages in two situations: First, and pavement rutting the same time and place; Second, in the individual sections of a small area (area ≤ 6m2) occurred. Pavement rut and own package is mainly caused by car bumps; rain will cause water in the street, reducing pavement skid resistance, thereby endangering traffic safety.

1.3 Pavement Cracks

Pavement cracks occurred mainly in winter, with transverse cracking.

Performance in the rain season, the most obvious, or even jack pulp phenomenon. Crack key hazards are as follows: First, the formation of surface pits is easy; Second, surface water would seep into the surface layer of the internal and road base, pavement damage.

1.4 pavement cracks and loose

Pavement cracks and loose most evident in the winter. In the rainy season, especially in cold weather, rain season, the road tends to form cracks and loose a large area (area ≥ 1m2) of trenches and pump slurry, together with infiltration of surface water within the surface layer and the road base, threatening the entire pavement structure .

1.5 Pavement Bleeding

Bleeding caused by road pavement skid resistance is mainly down, for a motor vehicle traveling on the highway, down the road skid resistance led directly to the brake and steering performance degradation, endangering traffic safety.

2 Formation Mechanism of Pavement Distress

2.1 surface pits

The formation of surface pits is because of water damage. In a lot of fast traffic load, tire position and the hydrodynamic pressure generated by vacuum suction from the surface will result in gravel asphalt concrete flaking out, or cause weathered stone, gravel and so crushing strength difference. Through the cycles, the formation of pits.

A lot of impurities in the aggregate, gravel aggregate pro-poor quality and poor sections of this oil is most obvious. Also, if road loose, cracked, old and new pavement cracks and joints, poor road handling, pit has also greatly increased the likelihood.

2.2 Pavement Rutting and own package

Pavement rutting and the formation of complicated ownership package, mainly the following aspects: First, the destructive effects of overloaded vehicles; second, high temperature stability of asphalt concrete road surface worse.