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High-strength and high-toughness epoxy resin concrete for bridge expansion joint transition zone and preparation method thereof

A technology of tough epoxy resin and epoxy resin, which is applied in the field of high-strength and high-toughness epoxy resin concrete and its preparation in the transition zone of bridge expansion joints, can solve the problems of short concrete life, long open traffic time, etc., and achieve impact resistance Good, the opening time is short, and the effect of improving impact toughness

Active Publication Date: 2020-10-30
山西省交通科技研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome the shortcomings of the concrete in the bridge expansion joint transition zone, and provides a high-strength and high-toughness epoxy resin concrete and its preparation method to solve the problems of short concrete life and long open traffic time in the existing bridge expansion joint transition zone

Method used

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  • High-strength and high-toughness epoxy resin concrete for bridge expansion joint transition zone and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The high-strength and high-toughness epoxy resin concrete for the bridge expansion joint transition area is composed of three components A, B, and C, and its mass ratio is A component: B component: C component = 100:25:500; The formula in parts by mass is: 35 parts of nano-rubber modified epoxy resin, 60 parts of liquid bisphenol A epoxy resin, 0 part of epoxy reactive diluent, 0.10 part of defoamer, 0.10 part of dispersant; B component The formula in parts by mass is: 100 parts of epoxy curing agent, 0 part of curing accelerator, 0.5 parts of coupling agent, 0.01 part of pigment; the formula of component C in parts by mass is: 100 parts of sand, 50 parts of quartz powder ﹑10 parts of fly ash ﹑5 parts of waste rubber powder ﹑5 parts of magnet powder ﹑10 parts of chopped fiber.

[0034] The nano-rubber modified epoxy resin in the A component is the HH-0802 product produced by Zhuzhou Tongxin Industrial Development Co., Ltd.; the liquid bisphenol A epoxy resin is E-44; th...

Embodiment 2

[0043] The high-strength and high-toughness epoxy resin concrete for the bridge expansion joint transition area is composed of three components A, B, and C, and the mass ratio is A component: B component: C component = 100:40:700; The formula in parts by mass is: 45 parts of nano-rubber modified epoxy resin, 50 parts of liquid bisphenol A epoxy resin, 3 parts of epoxy reactive diluent, 0.20 parts of defoamer, 0.20 parts of dispersant; B component The formula in parts by mass is: 100 parts of epoxy curing agent, 3 parts of curing accelerator, 1 part of coupling agent, 0.03 parts of pigment; the formula of component C in parts by mass is: 100 parts of sand, 80 parts of quartz powder ﹑12 parts of fly ash ﹑10 parts of waste rubber powder ﹑10 parts of magnet powder ﹑15 parts of chopped fiber.

[0044] The nano-rubber modified epoxy resin in the A component is the HH-0801 product produced by Zhuzhou Tongxin Industrial Development Co., Ltd.; the liquid bisphenol A epoxy resin is E-51...

Embodiment 3

[0053] The high-strength and high-toughness epoxy resin concrete for the bridge expansion joint transition zone is composed of three components A, B, and C, and its mass ratio is A component: B component: C component = 100:50:800; The formula in parts by mass is: 50 parts of nano-rubber modified epoxy resin, 45 parts of liquid bisphenol A epoxy resin, 5 parts of epoxy reactive diluent, 0.30 part of defoamer, 0.30 part of dispersant; B component The formula in parts by mass is: 100 parts of epoxy curing agent, 5 parts of curing accelerator, 2 parts of coupling agent, 0.05 parts of pigment; the formula of component C in parts by mass is: 100 parts of sand, 100 parts of quartz powder ﹑15 parts of fly ash, 15 parts of waste rubber powder, 15 parts of magnet powder, 20 parts of chopped fiber.

[0054] The nano-rubber modified epoxy resin in the A component is the HH-0803 product produced by Zhuzhou Tongxin Industrial Development Co., Ltd.; the liquid bisphenol A epoxy resin is a mi...

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Abstract

The invention discloses a high-strength and high-toughness epoxy resin concrete for bridge expansion joint transition zones and a preparation method thereof. The epoxy resin concrete consists of a component A, a component B and a component C; the component A is prepared from nanoscale rubber-modified epoxy resin, liquid bisphenol-A epoxy resin, epoxy active diluent, defoaming agent and dispersant;the component B is prepared from epoxy curing agent, curing accelerant, coupling agent and pigment; and the component C is prepared from sand, quartz powder, fly ash, waste rubber powder, magnet powder and chopped fibers. The high-strength and high-toughness epoxy resin concrete not only can be cured by normal temperature but also can be cured by microwave radiation. The high-strength and high-toughness epoxy resin concrete has the advantages of good durability, long life, comfort for driving, short time for being open to traffic, constructability in low-temperature environments and the like,can be used in the installation construction of bridge expansion joints as well as the rapid concrete repair of bridge expansion joint transition zones, and can solve the problems of conventional bridge expansion joint transition zone concretes, i.e., short lives and long time for being open to traffic.

Description

technical field [0001] The invention belongs to the technical field of chemical building materials, and in particular relates to a high-strength and high-toughness epoxy resin concrete for bridge expansion joint transition areas and a preparation method thereof. The concrete can be used for installation and construction of bridge expansion joints, and can also be used for bridge expansion joint transition areas Concrete quick repair. Background technique [0002] With the vigorous development of expressway construction in our country, the substantial increase in vehicle load levels and the sharp increase in traffic flow have brought great challenges to bridge expansion joints. Bridge expansion joints directly bear the impact of wheel loads and are exposed to the atmosphere for a long time, so they are easily damaged and the maintenance cost is high. After the bridge expansion joints are damaged, on the one hand, it will affect the driving comfort and make the drivers lack a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/14C04B111/34C04B111/50C04B111/82
CPCC04B26/14C04B2111/00482C04B2111/00672C04B2111/0075C04B2111/343C04B2111/503C04B2111/82C04B2201/05C04B2201/50C04B24/023C04B24/302C04B24/02C04B24/006C04B24/42C04B14/06C04B18/08C04B18/22C04B14/308C04B14/386C04B14/46C04B16/0625C04B20/0076C04B20/006C04B2103/408C04B2103/50C04B2103/54
Inventor 舒兴旺辛润勤程飞刘小军张影李登华刘哲崔东霞申力涛林浩
Owner 山西省交通科技研发有限公司
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