Restoration structure and method for damaged concrete pavement panel

Abstract

The invention provides a restoration structure and method for a damaged concrete pavement panel. The restoration structure for the damaged concrete pavement panel comprises the concrete pavement panel with the planed surface, multiple pairs of rebar embedding holes, rebars and a steel fiber reinforced concrete cover. The rebar embedding holes are formed in the two sides of a broken slab crack in pairs and distributed in the extension direction of the broken slab crack. The rebars are vertically inserted and fixed into the rebar embedding holes in a binding mode. The steel fiber concrete cover is poured and fixed to the concrete pavement panel. The restoration method for the damaged concrete pavement panel includes the steps that 1, planing is conducted; 2, the multiple pairs of rebar embedding holes are drilled; 3, construction glue is poured into the rebar embedding holes, and the rebars are vertically embedded; 4, steel fiber reinforced concrete is poured to form the steel fiber reinforced concrete cover, and finally the restoration structure for the damaged concrete pavement panel is formed. According to the restoration structure and method for the damaged concrete pavement panel, the service life and the maintenance period of a road are prolonged, and meanwhile the long-term use cost is reduced.

Description

technical field [0001] The invention relates to repair and reinforcement of damaged concrete pavement panels, in particular to a repair structure of concrete pavement panels and a repair method for damaged concrete pavement panels. Background technique [0002] By the end of 2011, the total mileage of national highways reached 4.1064 million kilometers, and 2.1034 million kilometers of paved roads had been built, of which 1.5121 million kilometers were ordinary cement concrete roads, accounting for 71.9% of the total paved roads. Cement concrete pavement refers to the pavement with cement concrete as the main material for the surface layer, referred to as concrete pavement, also known as rigid pavement, ordinary concrete pavement does not configure steel bars except for joint areas and local areas (edges or corners), also known as Plain concrete pavement. [0003] However, with the rapid advancement of modernization, the traffic volume continues to increase, and the vehicle...

AI Technical Summary

Problems solved by technology

However, the above methods cannot fundamentally solve the problems of low tensile strength of ordinary cement concrete pavement slabs, large deformation of new cement concrete, which leads to cracking of the weak bonded surface with the original cement concrete, and cracking and damage in a short period of time after repeated loading.

[0005] Therefore, it is urgent to seek a new repair and reinforcement method to solve the fundamental problems of ordinary cement concrete pavement such as low strength, easy cracking, short service life, and high long-term use cost.

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