Composite fabricated cement concrete pavement structure and construction method thereof

Abstract

The invention provides a composite fabricated cement concrete pavement structure. The composite fabricated cement concrete pavement structure comprises a base layer, a leveling layer laid on the baselayer, a fabricated prefabricated concrete slab laid on the leveling layer, a rubber modified asphalt synchronous gravel sealing layer laid on the fabricated prefabricated concrete slab, and rubber modified asphalt concrete laid on the rubber modified asphalt synchronous gravel sealing layer. Compared with the prior art, the composite fabricated cement concrete pavement structure is formed by combining specific functional layers under specific connection relationship, the functional layers have good interaction, and the cooperation of layer structures is realized, so that the whole composite fabricated cement concrete pavement structure has high strength and good driving comfort, and reflective cracks and rutting can be reduced, and the service life of the pavement is prolonged. The experimental results show that the pavement damage index PCI of the composite fabricated cement concrete pavement structure is 92.3-95.5, and the pavement service condition is excellent.

Description

technical field [0001] The invention relates to the technical field of traffic construction, and more specifically relates to a composite assembled cement concrete pavement structure and a construction method thereof. Background technique [0002] The traditional pavement structure is divided into asphalt concrete and cement concrete pavement structure, and asphalt concrete and cement concrete are generally used as the surface layer of the pavement. The traditional cement concrete pavement has high strength, but it is generally poured on site by artificial machinery, and the on-site maintenance period is long, and the pavement after forming has obvious noise and noise under high-speed driving conditions due to the existence of longitudinal and transverse joints. Bumping phenomenon; while the asphalt concrete pavement does not need vertical and horizontal joints, and the driving comfort is better, but the cost is higher. The base layer is generally made of cement-stabilized ...

AI Technical Summary

Problems solved by technology

However, on the one hand, the cement concrete poured on site requires curing (14 to 28 days) and closed traffic, so the construction period is longer; The position has not been treated in any way, which is prone to reflective cracks, which will affect the service life and driving comfort of the asphalt pavement; and the contact between the adhesive layer and the oil bonding layer is semi-sliding to sliding, and the interlayer shear force is large, which is easy to make Defects such as rutting on the asphalt surface

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