A kind of injection type conductive asphalt concrete, bridge deck pavement structure and pavement method

Abstract

The invention discloses an injection-type conductive asphalt concrete, a bridge deck pavement structure and a pavement method, and a pouring-type conductive asphalt concrete steel bridge deck pavement structure, which includes an asphalt mastic gravel concrete layer from top to bottom, Adhesive layer, poured conductive asphalt concrete layer, waterproof and thermal insulation layer, anti-corrosion layer and steel bridge deck. The invention adopts castable conductive asphalt concrete as the main pavement layer, which can ensure the integrity of the pavement structure under the condition of power on, the heating effect is uniform and stable, effectively improves the function of melting snow and ice on the bridge deck, alleviates low-temperature cracking of the bridge deck pavement, and guarantees the safety of the bridge. traffic safety.

Description

technical field [0001] The invention belongs to the technical field of bridge deck pavement engineering, and in particular relates to an injection type conductive asphalt concrete, a bridge deck pavement structure and a pavement method. Background technique [0002] In recent years, long-span bridges have been built one after another. Among the existing bridge deck systems, the orthotropic steel bridge deck system has been widely used due to its advantages of light component weight, short construction period, and strong lateral wind resistance. Cast asphalt concrete (GA) has become the first choice for steel bridge deck pavement materials because of its good impermeability, aging resistance, low temperature crack resistance and deformation followability. Many physical engineering experiences have shown that while pouring asphalt concrete steel bridge deck pavement ensures excellent performance, it is still unavoidable that the ordinary bridge deck pavement structure is great...

AI Technical Summary

Problems solved by technology

Many physical engineering experiences have shown that while pouring asphalt concrete steel bridge deck pavement ensures excellent performance, it is still unavoidable that the ordinary bridge deck pavement structure is greatly affected by the external environment temperature, the bridge area is seriously frozen by snow, and traffic accidents occur. common disease

[0003] At present, the methods of melting snow and ice on steel bridge decks are mainly artificial, mechanical, and spraying snow-melting agents. Among them, the manual method is inefficient, and the mechanical method is easy to damage the road surface.

The conductive concrete (CA) prepared at this stage has a uniform and stable heating effect, timely snow melting and no need to interrupt traffic, which can effectively alleviate low-temperature cracking of bridge deck pavement, but there are certain problems in the existing construction and operation stages: conductive concrete paving, rolling During the pressing process, the pre-arranged block electrodes inside are easily crushed and lose their function; during the process of melting snow and ice, the water from melting ice and snow penetrates into the concrete and easily causes a short circuit in the conductive layer; the contact between water and electricity during the electrification process is not conducive to the vehicle and pedestrian safety

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