Reinforced emulsified asphalt concrete for roads and preparation method of concrete

Abstract

The invention discloses reinforced emulsified asphalt concrete for roads and a preparation method of the concrete. The reinforced emulsified asphalt concrete for the roads comprises aggregate, waterborne epoxy resin emulsion and emulsified asphalt, wherein the weight ratio of aggregate to waterborne epoxy resin emulsion to emulsified asphalt is (90-110): (0.1-10): (7-20). The reinforced emulsified concrete disclosed by the invention can be used as cold-mixed and cold-laid asphalt concrete for being applied to spreading or repairing and the like of asphalt pavements, can solve the problems of high temperature sensitivity, insufficient binding capacity, poor durability and the like of traditional asphalt type material, and retains the advantages of low pollution and easiness in construction and operation of the emulsified asphalt and obtains excellent performances of high strength, high binding force, durability in use and the like through waterborne epoxy resin.

Description

technical field [0001] The invention belongs to the field of road engineering, and relates to an emulsified asphalt concrete and a preparation method thereof, in particular to a road-use reinforced emulsified asphalt concrete and a preparation method thereof. Background technique [0002] In recent years, most of the molding products that have been widely promoted and applied in the market are solvent-based cold-mix and cold-paving asphalt mixtures, which require a large amount of gasoline, kerosene, diesel, etc. as solvents. pollute the environment and cause a huge waste of resources. In addition, because the volatilization of diesel oil is very slow, the strength of the mixture after molding is low, the initial bonding performance is poor, and it is easy to scatter under the action of driving load. [0003] As a kind of thermosetting water-based material, water-based epoxy resin will gradually increase its strength with time. It uses a series of chemical and physical meth...

AI Technical Summary

Problems solved by technology

In recent years, there have been relevant researches in China. For example, the Chinese patent No. 200610036564.6 discloses a method for preparing emulsified asphalt modified by water-based epoxy resin. The curing agent used contains modified aromatic amine, and the cured product contains a large amount of Rigid benzene ring group, hard and brittle, low flexibility, prone to cracking in practical application

The Chinese patent application number 201110188772.9 discloses a method for preparing water-based polyurethane epoxy resin modified emulsified asphalt. The reaction time required for the synthesis of polyurethane epoxy resin and aliphatic amine curing agent is long and the operation is complicated; the Chinese patent application number 201210089357.2 The patent discloses a water-based epoxy resin-modified emulsified asphalt and its preparation and application. The preparation process is complex and requires organic solvents

[0005] Most of the current research focuses on the waterborne epoxy resin modified emulsified asphalt material, but the research on the waterborne epoxy resin emulsified asphalt mixture and its preparation method has not been reported yet.