Epoxy asphalt material for express highway and bridge, and preparation method

A technology of epoxy asphalt material and expressway, which is used in building insulation materials, roads, roads, etc., can solve the problems of difficulty in meeting the paving requirements of large-span bridges, low elongation, insufficient toughness, etc., and achieve high strength and fatigue resistance. Excellent performance, excellent performance effect

Active Publication Date: 2004-11-17
JURONG NINGWU SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, asphalt is modified with polymers at home and abroad. In China, asphalt is mainly modified by fillers and cross-linking materials, which is helpful to improve the service temperature and elasticity of asphalt. However, in terms of its compatibility , I am afraid it is not good enough, the toughness is insufficient, the elongation is low, and it is difficult to meet the paving requirements of long-span bridges

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: 60 parts of asphalt (place of origin: Shanjiasi) (quality, the same below), 15 parts of oxalic acid, 5 parts of polyisobutylene succinic anhydride (molecular weight: 5100, Changzhou Guanghui High-tech Chemical Co., Ltd.), poly Add 19.5 parts of oxalic anhydride (molecular weight: 1500, Changzhou Guanghui High-tech Chemical Co., Ltd.) and 0.5 part of triethylamine into the reaction kettle, heat to 90°C, stir and mix for 1 hour, and then disperse with a high-speed disperser for 30 minutes to obtain Part A. Before use, heat 50 parts of epoxy resin (E-51, supplied by Wuxi Resin Factory, the same below) to 120°C respectively, and then mix them, then add 2350 parts of stone materials, keep warm for 50 minutes, and carry out road For paving, it can also be directly sprayed onto the road surface as a bonding layer material without mixing stones. The properties of the material itself and the properties of the epoxy asphalt concrete prepared from it are shown in Ta...

Embodiment 2

[0031] Example 2: 55 parts of asphalt, 15 parts of dimer acid (Zhejiang Yongzai Chemical Factory), 3 parts of polyisobutylene succinic anhydride (molecular weight: 2400, Changzhou Guanghui High-tech Chemical Co., Ltd.), 9.5 parts of polyazelaic anhydride, 0.5 parts of triethylamine, 7 parts of ethylene-styrene-glycidyl methacrylate (1:1:1) copolymer (molecular weight: 2000, Changzhou Guanghui High-tech Chemical Co., Ltd.) were added to the reaction kettle, while stirring While heating to 120°C, stir and mix for 6 hours, then add 10 parts of asphalt to the reactor and heat to 120°C, and finally disperse the mixture in a colloid mill at high speed to obtain part A; before use, mix part A and part B with epoxy 25 parts of resin (E-51) were heated up to 120°C, mixed, then mixed with 1958 parts of stone, kept warm for 50 minutes, and paved the road, or not mixed with stone, directly sprayed onto the road as a bonding layer material. The properties of the material itself and the pro...

Embodiment 3

[0032]Example 3: 50 parts of asphalt, 15 parts of alkyd resin (Shanghai Xinda Chemical Factory, 343-3), 6 parts of polyisobutylene succinic anhydride (molecular weight: 3700, Changzhou Guanghui High-tech Chemical Co., Ltd.), 6 parts of polypentylene Add 9.4 parts of acid anhydride, 0.6 parts of triethylamine, and 5 parts of epoxy resin (E-51) into the reactor, heat to 160°C while stirring, stir and mix for 4 hours, and then add 14 parts of asphalt into the reactor Heat to 120°C, and finally disperse the mixture in a colloid mill at high speed to obtain part A; before use, heat 20 parts of epoxy resin (E-51) in part A and part B to 120°C, mix, and then mix in 1880 parts of stone , keep warm for 50 minutes, pave the road, or directly spray on the road surface as a bonding layer material without mixing stones. The properties of the material itself and the properties of the epoxy asphalt concrete prepared from it are shown in Table 1.

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PUM

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Abstract

An epoxy asphalt material for express highway and bridge wherein the mass portion of the composition is, part A, asphalt 50-80 parts, aliphatic diacid or substituted carboxylic acid 10-25 parts, aliphatic acid anhydride 1-20 parts, polyisobutylene succinic anhydride 2-15 parts, epoxy resin 0-30 parts, epoxy resin hardening accelerating agent 0.1-1.0 part. Part B, epoxy resin, the mass ratio of part an and part B is 2-8:1. The invention also discloses the process for preparing the epoxy asphalt material.

Description

1 technical field [0001] The invention relates to an epoxy asphalt material for highways and road bridges and a preparation method thereof, in particular to provide a high-strength, high-ductility and fatigue-resistant epoxy asphalt prepared by modifying asphalt with epoxy resin and curing agent Materials and their preparation methods. 2 background technology [0002] Asphalt is both viscous and elastic, manifested in its fluidity and resistance to flow. At high temperature, viscosity dominates, and asphalt is easy to flow; at low temperature, elasticity dominates, and asphalt shows flow resistance. These characteristics are manifested in asphalt paved roads. In summer high temperature season, the road surface is prone to rutting under heavy loads. , in the cold winter season, temperature shrinkage cracks are prone to appear, especially the pavement of long-span steel box girder structure bridges that are being built in various places, and higher requirements are put forwar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00E01C7/18
Inventor 黄卫陈志明闵召辉朱吉鹏
Owner JURONG NINGWU SCI & TECH DEV
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