Asphalt concrete road surface construction method

Abstract

The invention relates to the technical field of road surfaces, and provides an asphalt concrete road surface construction method to aim at the problem that a structure is prone to damage after long-time using. According to the technical scheme, the asphalt concrete road surface construction method includes the following steps that S1, a foundation pit is excavated; S2, the bottom of the foundationpit is compacted; S3, substrate filling is carried out; S4, the road surface is poured, specifically, asphalt concrete is poured on a substrate to form a road surface layer; and S5, the road surfacelayer is compacted. The asphalt concrete is prepared from the following components in percentage by mass: 100 parts of asphalt, 15 to 20 parts of silicate cement, 20 to 25 parts of water, 30 to 40 parts of sand, 40 to 50 parts of stone, 5 to 6 parts of acrylic emulsion, 2 to 3 parts of casein, and 0.5 to 1 part of fatty alcohol polyethenoxy ether. The casein is added into the asphalt concrete andused for combining with calcium ions in the silicate cement to form a cross-linking network between molecules, thus molecular movement is further obstructed, so that compression resistance strength ofthe asphalt concrete is improved, and structural stability of the asphalt concrete is improved.

Description

technical field [0001] The invention relates to the technical field of road surfaces, in particular to an asphalt concrete road surface construction method. Background technique [0002] Pavement is the surface in direct contact with urban vehicles and is mainly used to carry the weight of vehicles. [0003] In order to ensure the stable operation of urban vehicles, it is usually necessary to keep the road surface relatively flat. If the road surface is uneven, it is easy to cause bumps in the urban vehicles and severely limit the running speed of the urban vehicles. [0004] Although the pavement will be flattened during construction, after a long period of use, due to the long-term extrusion of its structure, it is prone to structural damage, resulting in depressions on the pavement, which in turn makes the pavement uneven. Therefore, there is still room for improvement. Contents of the invention [0005] In view of the deficiencies in the prior art, the purpose of the ...

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Problems solved by technology

[0003] In order to ensure the stable operation of urban vehicles, it is usually necessary to keep the road surface relatively flat. If the road surface is uneven, it is easy to cause bumps in urban vehicles and severely limit the speed of urban vehicles.

[0004] Although the pavement will be flattened during construction, after a long period of use, due to the long-term extrusion of its structure, it is prone to structural damage, resulting in depressions on the pavement, which in turn makes the pavement uneven. Therefore, there is still room for improvement

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