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Over-wall high-elasticity joint material for steel bridge deck pavement maintenance and preparation method and use method of over-wall high-elasticity joint material

A steel bridge deck and pavement technology, which is applied to bridges, bridge parts, bridge maintenance, etc., can solve problems such as ignoring bonding and cooperative deformation, and achieve the effect of shortening the curing time at room temperature and increasing elasticity

Inactive Publication Date: 2017-09-08
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the common pothole-like diseases of epoxy asphalt, the existing maintenance technologies and schemes mainly focus on the development of pothole repair cement and mixture, while ignoring the problems of bonding and co-deformation between the new and old pavement

Method used

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  • Over-wall high-elasticity joint material for steel bridge deck pavement maintenance and preparation method and use method of over-wall high-elasticity joint material
  • Over-wall high-elasticity joint material for steel bridge deck pavement maintenance and preparation method and use method of over-wall high-elasticity joint material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Prepare the wall-mounted high-elastic joint material for steel bridge deck pavement maintenance of the present invention:

[0046] (1) 100 parts of liquid polysulfide rubber G4 (Akzo Nobel Sulfur Chemicals (Taixing) Co., Ltd.), 40 parts of plasticizer dibutyl phthalate (Dongguan Ruiyu Chemical Co., Ltd.), 10 parts of plasticizer Adhesive resin epoxy resin (NPEL128, South Asia Epoxy Resin (Kunshan) Co., Ltd.), 1 part of coupling agent γ-aminopropyltriethoxysilane (Nanjing Shuguang Chemical Group Co., Ltd.), 200 parts of heavy calcium carbonate ( MJHF-1250, Suzhou Mingjiang Fine Chemical Co., Ltd.) and 5 parts of fumed silica (AEROSIL R974, Evonik Degussa) were sequentially put into a planetary mixer, stirred and mixed for 1 hour, and then ground three times with a three-roll mill to obtain Main agent A of wall-hanging high-elastic joint material.

[0047] (2) 40 parts of vulcanizing agent MnO 2 (β-MnO 2 , Xushui County Star Anticorrosion Material Factory), 50 parts of...

Embodiment 2

[0055] Prepare the wall-mounted high-elastic joint material for steel bridge deck pavement maintenance of the present invention:

[0056] (1) 100 parts of liquid polysulfide rubber G12 (Akzo Nobel Sulfur Chemicals (Taixing) Co., Ltd.), 50 parts of plasticizer butyl benzyl phthalate (Dongguan Ruiyu Chemical Co., Ltd.), 1 part of even Joint agent γ-(methacryloyloxy)propyltrimethoxysilane (Nanjing Shuguang Chemical Group Co., Ltd.), 230 parts of heavy calcium carbonate (MJHF-1250, Suzhou Mingjiang Fine Chemical Co., Ltd.) and 20 parts of light carbonic acid Calcium (MJ-HXQG, Suzhou Mingjiang Fine Chemical Co., Ltd.) was sequentially put into a planetary mixer, stirred and mixed for 1 hour, and then ground three times with a three-roll mill to obtain the main agent A of the wall-mounted high-elastic joint material.

[0057] (2) 100 parts of vulcanizing agent MnO 2 (γ-MnO 2 , Foshan Youhe Chemical Technology Co., Ltd.), 100 parts of plasticizer butyl benzyl phthalate (Dongguan Ru...

Embodiment 3

[0060] Prepare the wall-mounted high-elastic joint material for steel bridge deck pavement maintenance of the present invention:

[0061] (1) Mix 100 parts of liquid polysulfide rubber G1 (Akzo Nobel Sulfur Chemicals (Taixing) Co., Ltd.), 60 parts of plasticizer chlorinated paraffin (S52, Dongguan Ruiyu Chemical Co., Ltd.), 1 part of coupling agent γ-glycidyloxypropyltrimethoxysilane (Nanjing Shuguang Chemical Group Co., Ltd.), 200 parts of talcum powder (MJ-SL1250, Suzhou Mingjiang Fine Chemical Co., Ltd.) and 5 parts of nano calcium carbonate (MJ-NM60, Suzhou Mingjiang Fine Chemical Co., Ltd.) into a planetary mixer in turn, stirred and mixed for 1 hour, and then ground three times with a three-roll mill to obtain the main agent A of the wall-hanging high-elastic joint material.

[0062] (2) 40 parts of vulcanizing agent MnO 2 (α-MnO 2 , Xiangtan Weixin Manganese Products Co., Ltd.), 50 parts of plasticizer chlorinated paraffin (S52, Dongguan Ruiyu Chemical Co., Ltd.), 1 p...

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Abstract

The invention discloses an over-wall high-elasticity joint material for steel bridge deck pavement maintenance and a preparation method and a use method of the over-wall high-elasticity joint material. The over-wall high-elasticity joint material consists of a main agent A and a curing agent B, wherein the main agent A comprises the following components in parts by weight: 50-150 parts of molten polysulfide rubber, 20-100 parts of a plasticizer, 0-30 parts of a tackifying resin, 50-250 parts of packing and 1-3 parts of a coupling agent; the curing agent B comprises the following components in parts by weight: 30-60 parts of a vulcanizing agent, 30-60 parts of a plasticizer, 10-30 parts of packing and 1-5 parts of a promoter; the weight ratio of the main agent A to the curing agent B is 100:(5-15). According to the product disclosed by the invention, the packing with thixotropism is introduced into the joint material on the basis of a rheology principle, so that the flowability of the high-elasticity joint material on an original pavement cross section is degraded, and sealing and adhesion of new and old pavements are achieved. In addition, the product is based on molecule chain segment movement and mutual action mechanisms, and the movement resistance of molecule chains of high-flexibility polysulfide rubber is further weakened by using the plasticizer, so that the elasticity of the over-wall high-elasticity joint material is greatly improved, and synergic deformation of the new and old pavements is achieved.

Description

technical field [0001] The invention relates to a material for steel bridge deck repair, in particular to a wall-hanging high-elastic joint material for steel bridge deck pavement maintenance, a preparation method and a use method. Background technique [0002] Under the service conditions of heavy load, high temperature and rainy conditions in China, the problem of insufficient fatigue toughness of epoxy asphalt pavement is highlighted. There are a large number of fatigue cracks in the early construction of epoxy asphalt steel bridge deck pavement in China, and the coupling of rainwater and traffic load Under the action, it gradually developed into pit disease. [0003] In view of the common pothole-like diseases of epoxy asphalt, the existing maintenance technologies and schemes mainly focus on the development of pothole repair cement and mixture, while ignoring the problems of bonding and co-deformation between new and old pavements. A large number of engineering cases h...

Claims

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Application Information

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IPC IPC(8): C09J181/04C09J11/08C09J11/06C09J11/04E01D19/08E01D22/00
Inventor 李款潘友强张辉陈李峰张健
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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