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Epoxy resin mixture for repairing fragmented part of cement concrete road

A technology of cement concrete and epoxy resin, applied in the field of in-situ repair, can solve the problems of increased difficulty in surface flatness, weakened strength, cracks, etc., and achieve the effects of shortening hardening time, enhancing flexibility, and enhancing adhesion

Inactive Publication Date: 2014-01-08
HANSOO ROAD IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the hardening shrinkage will be reduced by adding shrinkage reducing agent, but if the amount of shrinkage reducing agent is added too much, the strength will be weakened.
Moreover, the thermal expansion coefficient between the cement concrete section and the MMA resin repair material layer is different, which will cause cracking problems
[0008] In addition, generally speaking, there are many examples of using calcium carbonate (calcium carbonate) as a filling material for MMA resin repair materials. In this case, calcium carbonate will absorb MMA resin, resulting in a decrease in viscosity and an increase in fluidity, resulting in a drop in the damaged section. Reduced resistance, increased difficulty in surface flatness operations
At the same time, in the mix ratio of MMA resin repair material, compared with silica sand, the proportion of resin is relatively large, and it will form a certain hardness after hardening, but compared with the damaged concrete, the strength is not enough. After construction, due to traffic load and other reasons, the repaired part itself will break first
[0009] Therefore, if the cracked and damaged parts are simply filled with polymer resin, the shortcomings of the resin itself will give the road the most important properties: high strength, flexibility, strong adhesion, rapid hardening, pollution resistance, and weather resistance sexual damage

Method used

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  • Epoxy resin mixture for repairing fragmented part of cement concrete road

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Add 100 parts by weight of YD-128, 20 parts by weight of CTBN x13, and 5 parts by weight of TEA (triethanolamine), and react for 3 hours to produce a butadiene rubber-modified epoxy resin. Add the SH-6018 of 40 weight parts now, the benzoic acid of 3 weight parts, react 4 hours at 140 DEG C, obtain average epoxy resin equivalent 1500, Gardner viscosity (Gardner / cPs) is Z2 (25 DEG C) butane Diene rubber, and then react with silicone resin intermediate to obtain denatured epoxy resin (I)

Embodiment 2

[0055] Add 90 parts by weight of YD-134, 20 parts by weight of CTBN x8, and 2 parts by weight of dibutylamine, and react at 150°C for 3 hours to make a butadiene rubber-modified epoxy resin. Now add the Z-6018 of 30 weight parts, the caprylic acid of 3 weight parts, react 4 hours at 140 ℃, obtain average epoxy resin equivalent weight and be 1700, Gardner viscosity is the butadiene rubber of Z3 (25 ℃), then It reacts with the silicone resin intermediate to obtain denatured epoxy resin (II).

Embodiment 3

[0057] Add 85 parts by weight of YD-115, 20 parts by weight of CTBN x8, and 3 parts by weight of dibutylamine, and react at 145°C for 3 hours to make a butadiene rubber-modified epoxy resin. Now add the Z-6018 of 40 weight parts, the octanoic acid of 3 weight parts, react 4 hours at 140 ℃, obtain average epoxy resin equivalent weight and be 1600, Gardner viscosity is the butadiene rubber of Z3 (25 ℃), then It reacts with the silicone resin intermediate to obtain denatured epoxy resin (Ⅲ).

[0058] The modified epoxy resin obtained above was mixed with epoxy resin and aggregate to make a broken and damaged repair material (as shown in Table 1), and then the modified epoxy resin material was compared with the material without adding the modified epoxy resin. The specific results See Table 2.

[0059] Table 1

[0060] Raw materials (parts)

Example 1

Example 2

Example 3

Comparative example 1

Comparative example 2

Comparative example 3

Remark ...

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Abstract

An epoxy resin mixture for repairing fragmented parts of cement concrete roads comprises 10-99 wt% of an adhesive and 10-90 wt% of aggregates, wherein the adhesive comprises, by weight, 70-90% of a main agent and 10-30% of a hardener, and the main agent comprises epoxy resin, denatured epoxy resin, and a reactive diluent. Compared with existing repairing materials for fragmented parts, the repairing material for fragmented parts of cement concrete roads of the invention has the advantages of higher strength, shortened hardening time, excellent retractility, and better adhesion to contaminated road surfaces.

Description

technical field [0001] The present invention relates to an epoxy resin mixture for repairing broken parts of cement concrete roads, more specifically, to an epoxy resin composed of 10-99% by weight of adhesive and 10-90% by weight of aggregate The mixture, wherein the adhesive is composed of a main agent with a weight ratio of 70-90% and a hardener with a weight ratio of 10-30%, and the main agent includes epoxy resin, denatured epoxy resin and reactive diluent. Background technique [0002] In order for vehicles to drive more safely and comfortably, the flatness of the surface should be pursued during road paving. In addition, the pavement should be able to resist wear and shearing caused by the impact of traffic loads, and play an important role in protecting the bridge deck, resisting damage to the bridge deck caused by rain and other weather reasons, and prolonging the life of the structure. role. [0003] For example, the road surface is damaged due to vehicle load (t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/10C08L63/00C08L63/02C08L63/04C08G59/50C08G59/62
Inventor 朴正鎬崔相九尹俊老
Owner HANSOO ROAD IND CO LTD