A kind of ac and epoxy structural layer composite steel bridge deck pavement construction method

Abstract

The invention relates to a construction technology and equipment for the composite steel bridge deck pavement of AC and epoxy structure layer, wherein the composite steel bridge deck pavement layer of AC and epoxy structure layer includes a steel bridge surface layer, and the steel bridge The surface layer is closely paved with an epoxy gravel seal layer, and the epoxy macadam seal layer is tightly paved with an AC‑16 asphalt concrete layer, and the AC‑16 asphalt concrete layer is tightly paved Equipped with an epoxy wear layer; the construction sequence of the present invention is to first carry out the construction preparation of the composite steel bridge deck pavement layer of the AC and epoxy structure layer, and then use a special cleaning machine for the steel bridge deck to clean the steel bridge deck , then adopt composite steel bridge deck pavement construction three-purpose paver to carry out the pavement construction of epoxy crushed stone sealing layer, AC-16 bituminous concrete layer, epoxy wearing layer on the steel bridge deck after cleaning, the present invention has It has the advantages of low maintenance cost, strong adhesion, not easy to damage, low construction cost, large cleaning area, high operating efficiency, good paving quality, and accurate material ratio.

Description

technical field [0001] The invention relates to a steel bridge deck pavement, which belongs to the field of bridge construction, and specifically relates to the composite steel bridge deck pavement construction technology of AC and epoxy structure layers. Background technique [0002] The design of steel bridge deck pavement is a major problem in the current road engineering field. Due to the large deflection of the steel bridge deck, the steel bridge deck pavement is easily damaged. At present, the pavement of steel bridge deck mainly adopts double-layer SMA or epoxy asphalt concrete. The main problem of double-layer SMA is that the lower layer of SMA tends to soften at high temperature, and cannot restrain the pavement layer from shearing and slipping. Destruction occurs and the life is short. Although the epoxy asphalt concrete is well bonded, the cost is too high, and the maintenance is difficult and expensive; the conventional method for cleaning the steel bridge deck ...

AI Technical Summary

Problems solved by technology

At present, the pavement of steel bridge decks mainly adopts double-layer SMA or epoxy asphalt concrete. The main problem of double-layer SMA is that the lower layer of SMA tends to soften under high temperature conditions, and cannot restrain the pavement layer against shear slippage. breakage, short life

Although the epoxy asphalt concrete is well bonded, the cost is too high, and the maintenance is difficult and expensive; the conventional method for cleaning the steel bridge deck is to first remove the loose matter on the surface of the steel plate with a rigid fiber brush or a wire brush. Then use a small shovel to scrape off the thicker oil and grease attached to the surface of the steel plate, and then use an alkaline cleaning agent (such as trisodium phosphate, etc.) to clean the part contaminated by oil, and finally rinse it with clean water

The conventional process is slow and the finished product is high. The cleaning agent not only causes environmental pollution, but also the residue of the cleaning agent affects the bonding between the pavement layer and the bridge deck, which will cause the pavement layer to separate from the bridge deck.

Images