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Epoxy type elastic concrete and preparation method thereof

An elastic concrete and epoxy-based technology, applied in the field of epoxy elastic concrete and its preparation, can solve the problems of small flexibility, high rigidity, and unsuitable bridge expansion joints, etc., and achieve good elasticity, strong dynamic load capacity, and bonding ability strong effect

Inactive Publication Date: 2016-12-21
CARBON COMPOSITESTIANJIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Conventional concrete materials are not suitable for filling bridge expansion joints due to their high rigidity and low flexibility. Therefore, we need to use a special concrete that has the following characteristics:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of component A: mix and stir 100 parts by weight of bisphenol A epoxy resin, 10 parts of diluent, 20 parts of toughening agent, and 2 parts of coupling agent;

[0034] Preparation of component B: Mix and stir 50 parts by weight of modified polyamine curing agent and 50 parts of phenalkamide evenly to prepare component B;

[0035] Preparation of component C: Mix and stir 70 parts by weight of rubber granules, 15 parts of large-diameter rubber powder, and 15 parts of small-diameter rubber powder to obtain component C;

[0036] Mix and stir the three components A, B, and C according to the weight ratio of 2:1:3 to obtain epoxy elastic concrete.

Embodiment 2

[0038] Preparation of component A: mix and stir 100 parts by weight of bisphenol A epoxy resin, 10 parts of diluent, 30 parts of toughening agent, and 2 parts of coupling agent;

[0039] Preparation of component B: Mix and stir 50 parts by weight of modified polyamine curing agent and 50 parts of phenalkamide evenly to prepare component B;

[0040] Preparation of component C: Mix and stir 70 parts by weight of rubber granules, 15 parts of large-diameter rubber powder, and 15 parts of small-diameter rubber powder to obtain component C;

[0041] Mix and stir the three components A, B, and C according to the weight ratio of 2:1:3 to obtain epoxy elastic concrete.

Embodiment 3

[0043] Preparation of component A: mix and stir 100 parts by weight of bisphenol A epoxy resin, 10 parts of diluent, 40 parts of toughening agent, and 2 parts of coupling agent;

[0044] Preparation of component B: Mix and stir 50 parts by weight of modified polyamine curing agent and 50 parts of phenalkamide evenly to prepare component B;

[0045] Preparation of component C: Mix and stir 70 parts by weight of rubber granules, 15 parts of large-diameter rubber powder, and 15 parts of small-diameter rubber powder to obtain component C;

[0046] Mix and stir the three components A, B, and C according to the weight ratio of 2:1:3 to obtain epoxy elastic concrete.

[0047] The epoxy type elastic concrete that three embodiments of the present invention make carries out performance test by relevant reference standard, and test data is shown in Table 1

[0048] Table I

[0049] performance item

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Abstract

The invention provides epoxy type elastic concrete and a preparation method thereof. The epoxy type elastic concrete is formed by mixing a component A with a component B and a component C in the mass ratio of the component A to the component B to the component C being 2 to 1 to (2.5-3.5), wherein the component A consists of bisphenol A type epoxy resin, a diluent, a flexibilizer and a coupling agent; the component B consists of a modified polyamine curing agent, and a phenolic aldehyde acidamide curing agent; and the component C consists of rubber granules and rubber powder. The epoxy type elastic concrete can be rapidly mounted, after normal construction, early strengthening can be achieved after two hours, and normal traffic can be restored rapidly; the elastic concrete is made from an epoxy resin type gel coagulation material and good in bonding strength; the elastic concrete contains rubber components, is good in elasticity, and is excellent in properties of abrasion resistance, vibration absorption, noise reduction, sound attenuation and the like; the elastic concrete is watertight, is resistant to frost thawing circulation, and does not form holes. The epoxy type elastic concrete can be widely applied in the fields of perfusion of bridge expansion seams, peripheries of tramcar tracks, railway switches and the like.

Description

technical field [0001] The invention relates to the field of plastic special concrete, in particular to an epoxy elastic concrete and a preparation method thereof. Background technique [0002] Expansion joints are the accessories that carry the largest dynamic load in the bridge structure. They will bear the impact of various complex dynamic loads during use. Since expansion joints will reserve empty slots during installation, we need to use a flexible material in actual construction. To fill the gap of expansion joints and ensure the normal running of the vehicle. [0003] Conventional concrete materials are not suitable for filling bridge expansion joints due to their high rigidity and low flexibility. Therefore, we need to use a special concrete that has the following characteristics: [0004] 1. Good flexibility, strong ability to recover deformation, strong ability to withstand dynamic load; [0005] 2. Strong bonding ability, can firmly adhere to expansion joints; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L21/00C08G59/50C08G59/62
CPCC08L63/00C08G59/50C08G59/62C08L2205/025C08L2205/035C08L21/00
Inventor 周洪芝
Owner CARBON COMPOSITESTIANJIN CO LTD
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