Concrete pavement with expansion joint telescopic device and construction method thereof

Abstract

The invention discloses a concrete pavement with an expansion joint telescopic device. The concrete pavement comprises concrete pavement layers and asphalt concrete surface layers positioned above theconcrete pavement layers, wherein expansion joint concrete layers are arranged above one sides, close to expansion joints, of the concrete pavement layers; gaps exist between the two expansion jointconcrete layers to form the expansion joints; one side of each of the expansion joint concrete layers is the corresponding asphalt concrete surface layer, and the other side of the expansion joint concrete layer is the corresponding expansion joint; Z-shaped steel is fixed on one side, close to the corresponding expansion joint, of the each of the expansion joint concrete layers, one end of the Z-shaped steel extends out of the expansion joint concrete layer, the other end of the Z-shaped steel is accommodated in the expansion joint concrete layer, a long round hole is formed in the lower sideon the upper edge of the Z-shaped steel, and a rubber water stop is fixed in the long circular hole to connect the gap between the two Z-shaped steels. The concrete pavement with the expansion jointtelescopic device, disclosed in the invention, has the benefits that reflection cracks on the asphalt surface layers at the expansion joint can be eliminated, so that the pavement is ensured to be durable.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a concrete pavement with an expansion joint expansion device and a construction method thereof. Background technique [0002] At present, the pavement structure of some projects is designed as a cement stabilized macadam layer + concrete surface layer + asphalt concrete surface layer, and the concrete pavement needs to be provided with expansion joints according to the design requirements during construction. "(05MR202) Atlas, the traditional expansion joint is to leave a gap of 2-3cm, set dowel bars on both sides, and set the expansion joint plate in the lower half of the gap to fill the joint with caulking material. [0003] However, if the expansion joints left by the traditional construction method are paved with asphalt concrete surface, reflection cracks will easily occur at the expansion joints. Under the long-term impact of the road vehicle load, the cracks will...

AI Technical Summary

Problems solved by technology

[0003] However, if the expansion joints left by the traditional construction method are paved with asphalt concrete surface, reflection cracks will easily occur at the expansion joints. Under the long-term impact of the road vehicle load, the cracks will become larger and larger. The intrusion of rainwater will destroy the base layer of the concrete slab at the expansion joint, and the uneven settlement of the concrete slabs on both sides will lead to the formation of typical linear crack pavement diseases

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