Method for constructing pavements by transporting bituminous concrete at normal temperature

Abstract

The invention discloses a method for constructing pavements by transporting bituminous concrete at a normal temperature, comprising the following steps of: (1) heating and stirring bitumen, broken stone and mineral powder into the bituminous concrete in a bitumen mixture stirring station, initially processing and cooling to the normal temperature, wherein the mineral powder contains 10%-100% of wave-absorbing materials in weight percentage; (2) loading the initially processed normal-temperature bituminous concrete on a vehicle and transporting to a construction site; (3) laying the normal-temperature bituminous concrete in the construction site to form bituminous pavements; (4) heating the laid bituminous pavements to 130 DEG C-150 DEG C by adopting a microwave heating vehicle in site; and (5) finally laminating densely and molding the heated bituminous pavements in time by adopting a road roller so that the bituminous pavements achieve the smooth effect. The process in the invention has no need of controlling the transporting temperature of the bituminous concrete so that the stirring station does not need to move at any time, and the paving is also more convenient to arrange.

Description

Technical field: [0001] The invention relates to a construction method of asphalt concrete pavement, in particular to a construction method of normal temperature transportation asphalt concrete pavement. 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] Because the three processes of mixing, paving and rolling must be carried out at a relatively high temperature. Generally, the temperature of asphalt during mixing is about 160°C-170°C, and the discharge temperature of machine-made asphalt mixture is preferably 155°C-170°C; the temperature of asphalt mixture transported to the site for paving shall not be lower than 130°C-150°C. Mixtures that have been agglomerated or expose...

AI Technical Summary

Problems solved by technology

Therefore, the asphalt mixing plant is often relocated with the construction site, and it is uneconomical to build a large-scale mixing plant; at the same time, the three processes of mixing, paving, and rolling are closely connected and must be carefully arranged, which is often the focus of construction and quality control ,difficulty