Method for processing precast cold laid asphaltic concrete material

Abstract

The invention discloses a method for processing a precast cold laid asphaltic concrete material, which comprises the following steps of: (1) heating and mixing asphalt, graded broken stone and a mineral powder mixed material in a batching and mixing plant to form an asphaltic concrete mixed material; (2) adopting a mould to mould the asphaltic concrete mixed material in a thermal state into sheets which are convenient to splice and have the thickness of 2-9cm, and reducing to normal temperature; and (3) packaging, loading, and transporting the sheets at normal temperature to construction field, arranging and splicing the sheets in the field, heating, and rolling to achieve good density. The processing method makes more work such as mixing the asphaltic concrete material and primarily rolling and forming performed in a factory, and can achieve specialized and industrial production.

Description

Technical field: [0001] The invention relates to a processing method of pre-paved asphalt concrete material. Background technique: [0002] Today, the general asphalt concrete pavement construction process is 1. Heating and mixing asphalt, gravel, mineral powder, etc. at the asphalt mixing station 2. Loading and transporting to the site with heat preservation 3. Rapid paving on site by paver 4. The road roller compacts and shapes the paving material. [0003] Today's mixing plants implement small-scale mechanized production to facilitate the relocation and installation of mixing plant equipment, so this construction process is equivalent to the cast-in-place construction of cement concrete construction, which is not convenient for industrial production. [0004] At the same time, because the factory asphalt mixture has not undergone preliminary processing and rolling, the paving and rolling work are all carried out on site. The high-temperature loose asphalt mixture is expo...

AI Technical Summary

Problems solved by technology

[0003] Today's mixing plants implement small-scale mechanized production to facilitate the relocation and installation of mixing plant equipment, so this construction technology is equivalent to the cast-in-place construction of cement concrete construction, which is not convenient for industrial production

[0004] At the same time, since the factory asphalt mixture has not undergone preliminary processing and rolling, the paving and rolling work are all carried out on site. The high-temperature loose asphalt mixture is exposed to the aerobic environment for a long time, which accelerates the aging of the asphalt.

[0005] Furthermore, if the asphalt concrete pavement adopts the patented technology of "construction of asphalt concrete pavement for normal temperature transportation", loose asphalt mixture is inconvenient to pave