Cement concrete bridge deck pavement surface vibration reduction sealing layer and construction method

Abstract

The invention discloses a cement concrete bridge deck pavement surface vibration reduction sealing layer and a construction method. The material comprises the following components in parts by weight:10-20 parts of emulsified asphalt, 10-20 parts of water-borne epoxy resin emulsion, 10-25 parts of water-borne epoxy resin curing agent emulsion, 100 parts of sand, 3-8 parts of cement, 0.05-0.4 partof cement accelerator, 5-10 parts of waste tire rubber powder and 4-12 parts of water. The construction method sequentially comprises the following steps of designing a construction mix proportion, preparing a solid mixture, a leachate ring mixed solution and a water ring mixed solution, loading and calibrating a slurry seal paver, mixing and paving, trimming, maintaining and opening traffic. Theconstruction thickness of the surface vibration reduction sealing layer is only 3 mm, the maximum particle size of used sand is 3 mm and is the same as the thickness of the surface vibration reductionsealing layer, and therefore tracks cannot be generated. And meanwhile, the surface vibration reduction sealing layer can reduce the driving noise of cement concrete bridge deck pavement, improve thedriving comfort and reduce the impact force of the vehicle load on the bridge, namely, the vibration reduction effect is achieved.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a vibration-damping sealing layer on a cement concrete bridge deck pavement surface and a construction method. Background technique [0002] Bridges with cement concrete bridge spans are paved with cement concrete decks. This kind of bridge deck pavement is noisy and has poor comfort, and the impact of vehicle loads on the bridge is large. [0003] In order to overcome the disadvantages of cement concrete bridge deck pavement, an asphalt concrete pavement layer is made on top of it. The existing problems are: first, it is not suitable to use large-tonnage rollers and vibratory rollers during construction, and the construction quality is not easy to guarantee, which affects the use. Quality and service life; second, the bridge deck is channelized, and high temperature is prone to rutting; third, due to the large deformation of the bridge span structure under the action ...

AI Technical Summary

Problems solved by technology

[0002] Bridges with cement concrete bridge spans are paved with cement concrete decks. This kind of bridge deck pavement is noisy, poor in comfort, and the impact of vehicle loads on the bridge is large.

[0003] In order to overcome the disadvantages of cement concrete bridge deck pavement, an asphalt concrete pavement layer is made on top of it. The existing problems are: first, it is not suitable to use large-tonnage rollers and vibratory rollers during construction, and the construction quality is not easy to guarantee, which affects the use. Quality and service life; secondly, the bridge deck is channelized when driving, and rutting is easy to occur at high temperature; thirdly, due to the large deformation of the bridge span structure under the action of driving load, the following is poor, and the asphalt concrete is easy to crack at low temperature

[0004] It can be used as a slurry seal or micro-surface on the cement concrete bridge deck pavement, but its driving noise is also very loud, the driving comfort is poor, and the adhesion is small, easy to fall off