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A tar modified epoxy pavement structure and construction technology in low temperature environment

A low-temperature environment, pavement structure technology, applied to the coagulation pavement, roads, roads and other directions paved on site, can solve the problems of asphalt concrete deformation stability, fatigue durability not meeting the requirements, rutting, degumming and other problems, achieve curing The effect of flexible and adjustable time, good wear resistance and low viscosity

Active Publication Date: 2018-11-30
中冶武汉冶金建筑研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used asphalt concrete does not meet the requirements in terms of deformation stability and fatigue durability, and after a period of use, it will appear rutting, corrosion, degumming and other diseases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The tar-modified epoxy pavement structure of the present invention is suitable as a non-slip and wear-resistant layer of concrete road (bridge) surfaces, and is particularly suitable as a non-slip and wear-resistant layer of steel bridge decks. This embodiment takes steel bridge decks as an example.

[0028] A construction process of tar modified epoxy pavement structure in low temperature environment, including the following steps:

[0029] (1) Before the construction of the steel bridge deck, the bridge deck needs to be polished twice with a grinder to remove the rust or paint on the steel plate. Use a hand-held grinder for rough sanding the first time, and use a hand-held grinder for fine sanding the second time, focusing on areas that the hand-held grinder cannot polish, such as the lower part of the railing and the gap between the railings.

[0030] (2) After finishing polishing, apply the sealing primer as soon as possible to prevent secondary corrosion of the steel plat...

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Abstract

The invention belongs to the field of road surface materials, particularly relates to a tar modified epoxy road surface structure in low-temperature environment and a construction technology. The tar modified epoxy road surface structure in the low-temperature environment comprises a base layer, a closed bottom coating, a middle coating leveling layer, a middle coating layer, a galling aggregate layer, a surface coating, an abrasion-proof aggregate layer and a closed surface layer, wherein the closed bottom coating, the middle coating leveling layer, the middle coating layer, the galling aggregate layer, the surface coating, the abrasion-proof aggregate layer and the closed surface layer are sequentially and closely coated on the surface of the base layer from bottom to top; the material of the closed bottom coating layer adopts tar modified epoxy clear liquid; the material of the middle coating leveling layer, the middle coating layer and the surface coating adopts tar modified epoxy mortar. The tar modified epoxy road surface structure disclosed by the invention is good in low-temperature application properties; under low temperature, the tar modified epoxy stickiness is low, so that the paving construction is facilitated, and the curing time is flexible and adjustable; and the tar modified epoxy road surface structure disclosed by the invention is good in abrasion resistance, good in bending resistance, good in bond properties, good in antiskid properties, good in waterproof properties, good in corrosion resistance, and suitable for bridges, docks, industrial ground and all kinds of regions for bearing light duty traffic, intermediate duty traffic and heavy duty traffic.

Description

Technical field [0001] The invention belongs to the field of road pavement materials, and in particular relates to a tar modified epoxy pavement structure and a construction process in a low temperature environment. Background technique [0002] The commonly used anti-skid and wear-resistant pavement material at this stage is polyurethane anti-skid pavement material, which has rich colors and can be directly bonded to the surface of asphalt, concrete, steel plate and other materials, and the construction method is relatively simple. However, it has poor heat and humidity resistance. As a pavement material, it will quickly peel off from the base layer in a high temperature and humid environment, and the anti-skid and wear-resistant structure will be destroyed. Secondly, because of its general wear resistance, it is not suitable for areas with heavy traffic. [0003] Steel bridge deck paving has always been highly concerned and valued by academic circles and engineering circles at h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/32E01C7/35
CPCE01C7/32E01C7/325E01C7/35
Inventor 曾明王智周紫晨
Owner 中冶武汉冶金建筑研究院有限公司
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