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A bridge expansion joint transition area pouring material and its preparation method and construction process

A construction technology and technology of expansion joints, applied in the field of chemical building materials, can solve the problems of long open traffic time of concrete, insufficient impact resistance, and durability needs to be improved, so as to shorten the open traffic time, improve service life, and excellent construction performance Effect

Active Publication Date: 2016-02-24
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

[0007] In order to solve the problems of the existing bridge expansion joint transition area, such as long open traffic time of concrete, poor bonding force with concrete beam slabs, pre-embedded bars and profiled steel, insufficient impact resistance, durability to be improved, etc., the present invention provides an environmental protection benefit Clear, high bond strength, good impact resistance, convenient construction, and rapid open traffic bridge expansion joint transition area pouring material and its preparation method and construction technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The pouring material for bridge expansion joint transition zone is composed of three components A, B and C, and its preparation method is as follows:

[0034]1) Preparation of component A: Add 100 parts of epoxy resin E-44, 10 parts of acryl glycidyl ether, 10 parts of superfine waste rubber powder, 0.1 part of BYK-066N, 0.1 part of BYK-1630.1 parts into the high-speed dispersion kettle Among them, the rotation speed of the dispersing disc is 1000 rpm, and component A is obtained after dispersing for 30 minutes, which is packaged and stored; the ultra-fine waste rubber powder is fine rubber powder processed from waste truck tires by using liquid nitrogen low-temperature freezing and crushing method. The surface is modified by silane coupling agent KH560, and the particle size is 150-200 mesh;

[0035] 2) Preparation of component B: mix 651 ﹟ Add 100 parts of low-molecular polyamide, 10 parts of DMP-3010, and 1 part of coupling agent KH-5501 into the reaction kettle one...

Embodiment 2

[0044] The pouring material for the bridge expansion joint transition zone is composed of three components A, B and C, and its preparation method is as follows:

[0045] 1) Preparation of component A: 100 parts of epoxy resin E-51, 20 parts of n-butyl glycidyl ether, 50 parts of superfine waste rubber powder, 0.1 part of BYK-066N; 0.1 part of BYK-1630. In the kettle, the rotating speed of the dispersing disc is 1200 rpm, and component A is obtained after dispersing for 40 minutes, which is packaged and stored; the ultrafine waste rubber powder is fine rubber powder processed by using liquid nitrogen low-temperature freezing and crushing method for waste truck tires, Its surface is modified by silane coupling agent KH560, and the particle size is 150 mesh to 200 mesh;

[0046] 2) Preparation of component B: Add 100 parts of modified aliphatic amine 1622T (produced by Beijing Qingda Qishi New Material Technology Co., Ltd.), 5 parts of DMP-305 parts, and 3 parts of coupling agent...

Embodiment 3

[0055] The pouring material for the bridge expansion joint transition zone is composed of three components A, B and C, and its preparation method is as follows:

[0056] 1) Preparation of component A: add 100 parts of bisphenol F epoxy resin NPEF-170, 30 parts of ultrafine waste rubber powder, 0.2 parts of BYK-066N, and 0.2 parts of BYK-1630. 1100 rpm, disperse for 50 minutes to obtain component A, pack and store; the superfine waste rubber powder is fine rubber powder processed from waste truck tires by liquid nitrogen cryogenic freezing and crushing method, the surface of which is silane-coupled Modified with agent KH560, the particle size is 150 mesh-200 mesh;

[0057] 2) Preparation of component B: Add 100 parts of modified phenalkamine T5 (produced by Henan Tianze Industrial Co., Ltd.) and 3 parts of coupling agent KH-5503 into the reaction kettle in sequence, stir evenly to obtain component B, pack store;

[0058] 3) Preparation of component C: add 100 parts of waste r...

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Abstract

Belonging to the technical field of chemical building materials, the invention discloses a perfusion material for a bridge expansion joint transition region, and a preparation method and construction process thereof. The perfusion material consists of three components, A, B and C. The component A consists of epoxy resin, an epoxy active diluent, a superfine waste rubber powder, an antifoaming agent and a dispersing agent; the component B consists of a curing agent, a curing agent promoter and a coupling agent; and the component C consists of waste rubber particles, a waste rubber powder and whiskers. The component A and component B are mixed and stirred evenly, and then the component C is added and mixed evenly to obtain the perfusion material. In construction, first a contact surface of a reserved groove of the bridge expansion joint and the perfusion material is coated with a layer of adhesive, and then the perfusion material is poured into reserved groove of the bridge expansion joint. The perfusion material prepared by the invention has high bonding strength, good construction performance, short time before traffic usage, good wear resistance, shock absorption and noise reduction performances, high mechanical properties, excellent impact resistance and durability, and substantial environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of chemical building materials, and in particular relates to a pouring material for a bridge expansion joint transition zone, a preparation method and a construction process thereof. Background technique [0002] Bridge expansion joints are an important part of bridge design. It is to ensure that the bridge can freely expand and contract under the influence of factors such as temperature changes, concrete shrinkage, creep, and loads, and avoid damage to the bridge structure caused by deformation and resistance. The device has been widely used in various bridge structures, and is generally installed between two adjacent spans of the bridge and between the beam end and the back wall of the abutment. [0003] 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 expan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L63/02C08K7/08C08K3/30E01D19/06
Inventor 舒兴旺杜素军申力涛崔东霞
Owner 山西省交通科技研发有限公司
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