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Underwater epoxy resin grouting material

A technology of epoxy resin grouting and epoxy resin, which is applied in the direction of epoxy resin glue, adhesive type, adhesive additive, etc., can solve the problem of strength reduction and achieve high mechanical strength and excellent underwater bonding strength Effect

Active Publication Date: 2018-05-18
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the ketimine curing agent used in the prior art will produce small molecular ketones and lead to a decrease in strength, the present invention provides an underwater epoxy resin grout with excellent underwater mechanical strength and underwater viscosity. knot strength

Method used

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Embodiment Construction

[0022] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.

[0023] The tests of the compressive strength and bonding pull-out strength of each embodiment and comparative example were carried out according to D / L 5193-2004. The pouring and curing of the specimens were carried out under water at 20°C.

[0024] The formula ratio and performance data of each embodiment and comparative example are as shown in table 1 and table 2, wherein the curing agent used in comparative example 5 and comparative example 6 is the common 593 curing agent in this area (purchased from Changzhou Shanfeng Chemical Co., Ltd. ), does not contain imidazoline structure. The curing agent used in Comparative Examples 7 and 8 is a common ketimine curing agent in the art (purchased from Shandong Deyuan Epoxy Technology Co., L...

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Abstract

The invention discloses an underwater epoxy resin grouting material. The underwater epoxy resin grouting material is prepared from, by weight, 100 parts of epoxy resin, 0-30 parts of a reactive diluent, 50-65 parts of a curing agent, 2-6 parts of a catalyst and 150-780 parts of silica sand; the curing agent contains an imidazoline structure; the catalyst is an alkali catalyst; the grain size of the silica sand is 10 meshes to 800 meshes. According to the underwater epoxy resin grouting material, the characteristics that loops of imidazoline are opened when imidazoline meets water under the effect of the catalyst are utilized, the reaction consumes water on a concrete interface, reaction type self-drainage is achieved, and finally the excellent underwater bonding strength is obtained; the underwater epoxy resin grouting material is high in mechanical strength, and can meet the requirements for most concrete repair and reinforcing projects.

Description

technical field [0001] The invention relates to an underwater epoxy resin grouting material, in particular to a grouting material used in the field of underwater concrete repair and reinforcement. Background technique [0002] At present, there are a large number of cross-river and sea-crossing bridges in my country. With the increase of service life, the diseases of the piers are becoming more and more serious. Under normal circumstances, piers are immersed in water environment, and repair work is very difficult. Epoxy resin grout has excellent mechanical properties, bonding properties and chemical corrosion resistance, and is widely used in structural repair and reinforcement of concrete buildings. However, traditional epoxy resins can only be applied on dry substrates, and it is difficult to meet the engineering application requirements of wet and underwater environments, especially bridge piers and pier foundations in areas along rivers and across seas. As one of the k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/04
CPCC08K3/36C09J11/04C09J163/00
Inventor 尹浩孙德文冉千平周进俊
Owner JIANGSU SOBUTE NEW MATERIALS
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