A kind of thin-layer paving material suitable for wet road and bridge deck and preparation method thereof

Abstract

The invention discloses a thin-layer pavement material suitable for wet road and bridge decks, which includes epoxy resin cement and wear-resistant aggregate, wherein the epoxy resin cement includes a mass ratio of 1:(0.5~ 0.85) of component A and component B; the component A is mainly composed of the following raw materials in proportion by mass: epoxy resin: 60-80, toughening agent: 5-15, reactive diluent 10-30 , coupling agent 0.5-1.5; the B component is mainly composed of the following raw materials in proportion by mass: curing accelerator 5-8, curing agent 92-95. Also disclosed is a preparation method for the thin-layer pavement material suitable for wet road and bridge decks. The pavement material can be applied to wet road and bridge decks, has good skid resistance, wear resistance, outstanding interface bonding performance, waterproof, low water absorption, good boiling aging resistance, and good durability.

Description

technical field [0001] The invention belongs to pavement pavement materials, in particular to a thin-layer pavement material suitable for wet road and bridge decks and a preparation method thereof. Background technique [0002] Epoxy resin thin-layer pavement refers to the anti-skid and wear-resistant thin-layer pavement with a thickness of only 3-6mm formed by bonding epoxy resin adhesive as the bottom layer and wear-resistant aggregate. In foreign countries such as the United States, due to the relatively long development time of related industries and relatively mature technology, there are currently many products available, with good performance and durability, but the scale is small, and they have a high impact on the application base. It is required to ensure that the moisture content of the base surface is below 8%. At present, the research and development of epoxy thin-layer overlays in China is still in its infancy, and the experimental section of modified epoxy re...

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Problems solved by technology

CN102173654A discloses a cold-coated epoxy thin-layer bridge deck pavement material, which mainly improves the skid resistance, high temperature stability, and low temperature flexibility, but does not study the wet surface, water aging resistance, and heat aging resistance

CN103964751A discloses a kind of epoxy mortar bridge deck pavement material, has carried out key improvement to the properties such as low temperature cracking, high temperature stability and cold and hot temperature difference impact of material, but has not researched on road bridge deck moisture curing, water resistance aging

CN105017726A discloses a kind of room temperature curable flexible epoxy composition for road and bridge deck thin layer pavement. It pays attention to the weather resistance of the material, and improves the thermal shock resistance and flexibility of the material, but the environmental factors such as water and heat of the material Lack of research on aging properties under the influence of

Patent CN106495562A discloses a cold-coated road and bridge deck thin-layer pavement material and its application method adapted to the hot and humid climate in the south. It is composed of epoxy binder and aggregate. surface curing

Patent EP0796903 discloses a non-solvent-based epoxy curable coating that can be cured underwater. The epoxy component is a water-based emulsified epoxy resin, which is expensive and has poor flexibility after curing, which is not suitable for paving thin layers of pavement.

Patent WO2007111452 discloses a repairing and reinforcing epoxy adhesive that can be cured underwater. The epoxy resin is a silane-modified epoxy resin raw material that needs to be specially modified. Low, can not be applied to pavement thin layer pavement

[0004] The above patents have obvious disadvantages, such as inability to use in humid environments, poor boiling resistance, poor flexibility, and high water absorption.

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