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Performance-controllable epoxy-polyketone grouting material as well as preparation method and application thereof

A grouting material, epoxy technology, applied in soil protection, protection devices, marine engineering and other directions, can solve the problems of increased mechanical properties, limited irrigability, short irrigating time, etc., and achieves low initial viscosity and spreadability. Strong, permeable and controllable effect of operating time

Active Publication Date: 2012-07-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention patent 87105255.5 discloses a high-permeability furan-epoxy chemical grouting material. The grout material has good permeability, but the mechanical properties increase too slowly in the later stage, and the controllability is poor. In practical applications, it often requires a long curing time. Expect
Chinese invention patent 201010597831.3 reports an environmentally friendly and flexible epoxy resin grouting material. Due to the use of active diluent instead of furfural acetone system, the mechanical properties have been improved, but its initial viscosity is large, and the pouring time is relatively short. restricted

Method used

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  • Performance-controllable epoxy-polyketone grouting material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Mix 45 parts of epoxy resin E-51, 23 parts of butanone, 31.8 parts of benzaldehyde, and 0.2 parts of aluminate coupling agent to obtain component A; mix 45 parts of ethylenediamine, curing regulator T 48 parts of -31, 5 parts of 2,4,6-tris(dimethylaminomethyl)phenol, 2 parts of calcium oxide, stirring and mixing to obtain component B; mix component A and component B according to the weight ratio of 100:5 The epoxy-polyketone grouting material is uniformly obtained.

Embodiment 2

[0025] Stir and mix 10 parts of epoxy resin E-44, 44 parts of acetone, 45.5 parts of paraformaldehyde, and 0.5 parts of titanate coupling agent to obtain component A; 88.5 parts of triethylenetetramine, 651 parts of curing regulator # 7 parts, 3 parts of 2,4,6-tris(dimethylaminomethyl)phenol, 1.5 parts of phosphazene and stir and mix to obtain component B; mix component A and component B according to the weight ratio of 100:0.5 An epoxy-polyketone grouting material was obtained.

Embodiment 3

[0027] Stir and mix 90 parts of epoxy resin E-51, 7 parts of cyclohexanone, 22.5 parts of benzaldehyde, and 0.5 parts of silane coupling agent KH550 to obtain component A; mix 80 parts of m-phenylenediamine, curing regulator ketone 10 parts of imine, 5 parts of 2,4,6-tris(dimethylaminomethyl)phenol, and 5 parts of thiosemicarbazide were stirred and mixed to obtain component B; the weight ratio of component A and component B was 100:70 Mix evenly to obtain epoxy-polyketone grouting material.

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Abstract

The invention discloses a performance controllable epoxy-polyketone grouting material as well as a preparation method and application thereof. The epoxy-polyketone grouting material mainly comprises components A and B, wherein the component A comprises epoxy resin, s reactive solvent and sm interface modifier; and the component B comprises sn amine curing agent, a curing regulator, a curing accelerant and a catalyst. The reactive solvent forms polyketone resin under the actions of the catalyst and the like and further forms an interpenetrating network structure together with epoxy, so the mechanical property, the permeability, the operable time and the like of the grouting material are controllable; and the grouting material has low initial viscosity, strong spreading property on various rock, soil and concrete interfaces, good permeability and operable time controllability, quick later mechanical strength enhancement and high grouting body mechanical strength, and can be used for filling concrete cracks and repairing rock defects, can be used for strengthening foundation reinforcement and water and permeation prevention of large projects and buildings such as roads, bridges, ports and the like.

Description

technical field [0001] The invention belongs to the field of epoxy grouting materials, and relates to a preparation method of epoxy grouting materials, in particular to an epoxy-polyketone grouting material with controllable performance and its preparation method and application. Background technique [0002] Epoxy resin has been widely used in anti-seepage reinforcement due to its excellent mechanical properties, small curing shrinkage, excellent corrosion resistance, and strong adhesion. Epoxy grouting material refers to the slurry prepared by adding a certain amount of diluent and curing agent with epoxy resin as the main agent. The material can be injected into the strata or gaps by pressure feeding equipment to make it diffuse, and then undergo an in-situ chemical reaction at the treated part to achieve gelation or curing, so that rock soil or concrete can achieve the purpose of reinforcement or seepage prevention and plugging. However, in the long-term test and constr...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08L61/00C08G6/02E01D22/00E02B3/16E02D3/12E02D31/00E02D31/02E04G23/02
Inventor 张广照马春风刘宇
Owner SOUTH CHINA UNIV OF TECH
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