High-strength super-toughness resin concrete and preparing method thereof

Abstract

The invention discloses high-strength super-toughness resin concrete which is composed of aggregate, packing and a sizing material. The high-strength super-toughness resin concrete is characterized in that the sizing material is composed of resin A and a curing agent B. The resin A is composed of epoxy resin, polyurethane prepolymer, polycarbonate and a functional agent. The weight percentage of the resin A and the curing agent B is 1:1-2:1, and the packing is inorganic powder. The aggregate is composed of super-fine sand, coarse sand and gravel. The epoxy resin is bisphenol A epoxy resin. The functional agent comprises accelerant, a water reducing agent, a defoaming agent and a coupling agent. The curing agent is long-chain aliphatic series anhydride. The high-strength super-toughness resin concrete has the advantages that strength is high and even, cracking and breaking do not happen, the deformation capability is good, the elasticity recovery rate is high, and the high-strength super-toughness resin concrete is not prone to permanent deformation at a high temperature.

Description

technical field [0001] The invention relates to a resin concrete and a manufacturing method thereof. In particular, it relates to a high-strength super-toughness resin concrete and a manufacturing method thereof. Background technique [0002] With the rapid development of expressways, the structural types of expressway bridges have been continuously innovated, and the spans of bridges have become larger and larger. Two types of concrete pavement. Cement concrete pavement has low cost, good wear resistance, and is suitable for heavy-duty traffic, but the maintenance period is long, and it is troublesome to repair in the future. Asphalt concrete pavement is light, easy to maintain and open to traffic, but it is easy to age and deform. At present, the noise caused by concrete vibration or rolling during construction has become an important problem that needs to be solved. In order to solve the above problems, it is particularly necessary to develop high-strength, super-toug...

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Problems solved by technology

At present, domestic resin concrete is mostly used in repairing materials. The repairing construction technology vibrates the repaired area after pouring or grouting. Although the strength of the cured concrete is high, the deformation capacity is poor, which cannot meet the deformation performance requirements of long-span bridges. ; Furthermore, early self-shrinkage occurs in the curing of concrete, which leads to fracture and cracking of concrete, which seriously affects the durability of concrete

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