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A kind of two-component concrete interface adhesive and using method thereof

A technology of concrete and interface adhesive, applied in the directions of adhesives, epoxy resin adhesives, non-polymer adhesive additives, etc., can solve the problems of interface damage, low bonding strength, unsatisfactory bonding effect, etc., and achieve long application time. , the effect of strong adhesion

Active Publication Date: 2019-07-05
HENAN PROVINCIAL WATER CONSERVANCY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low bonding strength of the new and old concrete interface, a weak surface is formed, and the new and old concrete cannot form a continuous whole, and it is easy to be damaged along the interface after being stressed, leaving engineering hidden dangers
At present, cement paste, cement mortar, etc. are usually used to deal with the interface between new and old concrete, and the bonding effect is not ideal.

Method used

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  • A kind of two-component concrete interface adhesive and using method thereof
  • A kind of two-component concrete interface adhesive and using method thereof
  • A kind of two-component concrete interface adhesive and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A two-component concrete interface adhesive, which is composed of agent A and agent B in a weight ratio of 3:1, wherein agent A is made of the following components by weight: bisphenol A epoxy resin E44 100 kg , furfural 30 kg, dibutyl phthalate 10 kg; agent B is made of the following components by weight: bisphenol A epoxy resin E44 100 kg, diethylenetriamine 120kg, phenol 2 kg, acetone 150 kg kg, ethanol 20 kg.

[0018] The preparation method of above-mentioned two-component concrete interface adhesive comprises the following steps:

[0019] (1) Preparation of Agent A system: Weigh each component of Agent A system by weight, stir and mix at 45°C, then cool to room temperature to obtain Agent A system;

[0020] (2) Preparation of agent B system: Weigh each component of agent B system by weight, add diethylenetriamine into a three-necked flask with a stirrer, heat to 75°C and keep the temperature, slowly add 45 Bisphenol A type epoxy resin E44 preheated at ℃, stirred ...

Embodiment 2

[0032] A two-component concrete interface adhesive, which is composed of agent A and agent B in a weight ratio of 3:1, wherein agent A is made of the following components by weight: bisphenol A epoxy resin E44 100 kg , furfural 35 kg, dibutyl phthalate 8 kg; agent B is made of the following components by weight: bisphenol A type epoxy resin E44 100 kg, diethylenetriamine 140kg, phenol 6 kg, acetone 170 kg kg, ethanol 10 kg.

[0033] The preparation method of above-mentioned two-component concrete interface adhesive comprises the following steps:

[0034] (1) Preparation of Agent A system: Weigh each component of Agent A system by weight, stir and mix at 45°C, then cool to room temperature to obtain Agent A system;

[0035] (2) Preparation of agent B system: Weigh each component of agent B system by weight, add diethylenetriamine into a three-necked flask with a stirrer, heat to 75°C and keep the temperature, slowly add 45 Bisphenol A type epoxy resin E44 preheated at ℃, stir...

Embodiment 3

[0047] A two-component concrete interface adhesive, which is composed of agent A and agent B in a weight ratio of 3:1, wherein agent A is made of the following components by weight: bisphenol A epoxy resin E44 100 kg , furfural 40 kg, dibutyl phthalate 5 kg; agent B is made of the following components by weight: bisphenol A type epoxy resin E44 100 kg, diethylenetriamine 115kg, phenol 2 kg, acetone 200 kg kg, ethanol 15 kg.

[0048] The preparation method of above-mentioned two-component concrete interface adhesive comprises the following steps:

[0049] (1) Preparation of Agent A system: Weigh each component of Agent A system by weight, stir and mix at 45°C, then cool to room temperature to obtain Agent A system;

[0050] (2) Preparation of agent B system: Weigh each component of agent B system by weight, add diethylenetriamine into a three-necked flask with a stirrer, heat to 75°C and keep the temperature, slowly add 45 Bisphenol A type epoxy resin E44 preheated at ℃, stir...

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Abstract

The invention discloses a double-component concrete interface adhesive. The double-component concrete interface adhesive is prepared from a first agent system and a second agent system according to the weight ratio of 3:1. The first agent system is prepared from, by weight, 100 parts of basic epoxy resin, 20-55 parts of furfural and 1-15 parts of dibutyl phthalate. The second agent system is prepared from, by weight, 100 parts of basic epoxy resin, 100-150 parts of diethylenetriamine, 2-10 parts of phenol, 100-220 parts of acetone and 0-50 parts of ethyl alcohol. The invention further discloses a preparation method and use method of the double-component concrete interface adhesive. The interface adhesive is high in binding force, and the binding splitting tensile strength can reach 90% or above that of an overall test piece. Spraying construction is convenient and rapid. The application time is long, and new concrete is poured within 3 hours after the interface glue is sprayed.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a two-component concrete interface adhesive used in water conservancy or civil construction engineering and its application method. Background technique [0002] At present, interface glue is widely used in the field of construction, but it is mainly used in wall bonding tiles, plastering of aerated concrete, and self-leveling of ground materials. The interface adhesives used in the market are mainly divided into three categories, inorganic interface adhesives, organic interface adhesives and composite interface adhesives. Organic interface adhesives and composite interface adhesives have good bonding performance, but they will release harmful substances to the human body, and the cost is high, so they are not suitable for long-term use; Inorganic interface adhesives include ordinary cement paste, cement mortar, and slurry-rich concrete. The main problems are that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J11/06C08G59/56C08G59/62
CPCC08G59/56C08G59/621C08K5/12C09J11/06C09J163/00
Inventor 曹宏亮袁群戴艳萍史长城冯侠丁秀英马莹李利华李秀菊王大辉冯凌云丁顺利郑秀兰王春磊张晓磊苏保印廉丰张佳男蔡艳华赵梦霞王贻森张兴来
Owner HENAN PROVINCIAL WATER CONSERVANCY RES INST
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