Epoxy resin injecting paste material for maintenance of road engineering and preparation method thereof

Abstract

The invention relates to an epoxy resin injecting paste material for the maintenance of road engineering and a preparation method thereof. The preparation method of the epoxy resin injecting paste material comprises the following steps of: (1) preparing an epoxy component A: mixing bisphenol A type epoxy resin with an activated thinner, and uniformly stirring at normal temperature so as to obtain the epoxy component A; (2) preparing a curing agent component B: mixing modified aliphatic polyamine with a curing accelerator DMP-30, and uniformly stirring at normal temperature so as to obtain the curing agent component B; (3) preparing through mixing: when in use, mixing the epoxy component A prepared from the step (1) with the curing agent component B prepared from the step (2) at normal temperature with the mixed ratio of 100:17-90, and stirring to obtain the epoxy resin injecting paste material. The invention cure fast at normal temperature and has better adhesion on a moist surface so that moist and incompact grits, gravel, and the like which are contained in a roadbed are adhered into a firm integer to a role of jointly bearing heavy loads of a road surface; and in addition, the invention has excellent mechanical property, thereby obviously enhancing the bearing capability of the repaired roadbed.

Description

technical field [0001] The invention relates to an epoxy resin grouting material used for road engineering maintenance and maintenance and a preparation method thereof. Background technique [0002] Road engineering is a typical layered structure, which is usually composed of surface layer, base layer, cushion layer and roadbed from top to bottom. Compared with the roadbed, the pavement is an open-air structure, which is greatly affected by the climate and environment, and directly bears the repeated action of vehicle loads, so the pavement is more prone to various diseases. [0003] According to different layers, pavement diseases can be divided into surface layer diseases and base layer diseases. Surface layer diseases include cracks, potholes, ruts, oil flooding, wrapping, etc., and base layer diseases include cracking, looseness, voiding, pumping, and interlayer damage. Intake of water, softening, etc. The surface layer disease will affect the base layer, and the base ...

AI Technical Summary

Problems solved by technology

There are two main methods to treat grass-roots diseases. One is to repair by digging and "opening the belly". The amount of work is large, the manpower and material resources are large, the cost is high, the construction period is long, and the impact on traffic is great. There is a lot of construction waste, and the social response is strong; the second is to drill holes on the road surface and inject cement slurry, which has the advantages of mature technology and wide application; the cement slurry material and the base layer have good bonding compatibility with the roadbed; the cost is low and the economy is good

The disadvantage is that the grouting aperture (wound) is large; it needs health care, and the opening of traffic is delayed, which has a great impact on traffic; the grouting material pollutes the road surface greatly

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