Wet curing reaction type asphalt pavement cold paving material and preparation method thereof

Abstract

The invention discloses a wet curing reaction type asphalt pavement cold paving material and a preparation method thereof, and belongs to the field of road engineering. The wet curing reaction type asphalt pavement cold paving material comprises the following raw materials: asphalt, mineral aggregate, mineral powder, a diluent, wet curing prepolymer, a tackifier and a modifier, wherein the mass ratio of the raw materials is as follows: asphalt: mineral aggregate: mineral powder= (4-6): 100: (0-3); asphalt: diluent= (70-90): (30-10); diluted asphalt: wet curing prepolymer: modifier: tackifier=100: (10-50): (0-10): (0-10); the diluted asphalt is a mixture of the asphalt, the diluent, the modifier and the tackifier; and the mineral aggregate is RAP old aggregate or new aggregate for millingand planing a pavement, the RAP old aggregate is used for protecting the environment, and resources are saved. The wet curing reaction type asphalt pavement cold paving material can meet the requirement of rapid traffic opening 3-5 hours after construction, and the preparation method is simple and easy to implement and convenient to construct.

Description

technical field [0001] The invention belongs to the field of road engineering, in particular to a moisture-curing reactive asphalt pavement cold patch and a preparation method thereof. Background technique [0002] Generally, the cold patching material is composed of asphalt, diluent, curing agent and mineral material. It is constructed at room temperature, which overcomes the need for heating and mixing of hot-mix asphalt mixture, many construction conditions, and high environmental requirements. It is mostly used in summer and autumn, and it is difficult to use in spring and winter. As a kind of environmental protection material capable of all-weather construction, asphalt pavement cold patch has a wide range of uses, especially for the repair of road surface diseases. The current cold patch materials are mainly divided into three types: solvent type, emulsification type and reactive type. The construction process of general reactive asphalt pavement cold patching materia...

AI Technical Summary

Problems solved by technology

The construction process of general reactive asphalt pavement cold patching materials is complicated, the construction technology requirements are high, and the curing agent needs to be spread, and the reaction time cannot be controlled, which makes it difficult to guarantee its storage stability and ease of construction.