Construction method of T-shaped girder bridge pavement with graphene heating film

Abstract

The invention is related to a pavement construction technology in the direction of bridge engineering in the field of highway engineering, and discloses a construction method of a T-shaped girder bridge deck pavement by means of the heating principle of a graphene heating film. At present, thawing speed of snow on a bridge deck is increased by spreading a snow-melting agent usually, which occupies large amount of manpower and resources; and what is more, using the snow-melting agent for long time may cause corrosion on the bridge deck and bridge structure and further causes reduction of the service life of the bridge. The method includes the steps of: paving a reinforced concrete layer by 10 cm; 2) removing foreign matters from a bridge base layer; 3) paving the graphene heating film; 4) detecting heating performance of the graphene heating film; 5) paving a waterproof layer by 1 cm; 6) paving a cement concrete protective layer by 4 cm; 7) paving modified asphalt concrete by 5 cm; 8) testing ground surface temperature by an infrared temperature detector. The method solves problems of slow thawing speed of ice and water and corrosion on the bridge body due to the snow-melting agent after the T-shaped girder bridge pavement ices in winter. The method increases the service life of the T-shaped girder bridge pavement and reduces expenses of pavement maintenance and the snow-melting agent.

Description

technical field [0001] The patent of the invention belongs to the technical field of road surface construction in the direction of highway engineering and bridge engineering, and is a T-shaped beam bridge deck pavement construction method using the heating principle of graphene heating film. Background technique [0002] At present, the traditional T-beam bridge deck is greatly affected by seasonal temperature changes, especially in winter in northern my country, because the road surface can obtain heat from the ground surface and the road surface is on the soil surface and can only dissipate heat upwards. In contrast, T-beam bridges The bridge body is suspended in the air, with a large heat dissipation area, and the heat is easily lost. Therefore, the cooling speed of the bridge deck is faster than that of the road surface, and the temperature is lower than that of the road surface. The speed is slower than the road surface, which will increase the probability of traffic acci...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional T-beam bridge deck is greatly affected by seasonal temperature changes, especially in winter in northern my country, because the road surface can obtain heat from the ground surface and the road surface is on the soil surface and can only dissipate heat upwards. In contrast, T-beam bridges The bridge body is suspended in the air, with a large heat dissipation area, and the heat is easily lost. Therefore, the cooling speed of the bridge deck is faster than that of the road surface, and the temperature is lower than that of the road surface. The speed is slower than the road surface, which will increase the probability of traffic accidents on the bridge deck, especially on bridge decks with turns, which can easily cause safety accidents such as sideslips of vehicles driving on the bridge deck, affecting people's travel and personal safety

At present, our commonly used snow removal method is to sprinkle deicing agent to increase the melting speed of snow on the bridge area, thereby reducing the occurrence of traffic accidents. Corrosion of the bridge body and structure, shortening the service life of the bridge

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