A kind of concrete structure repair agent and its preparation method, application method

A technology for concrete structure and repairing agent, applied in the field of building materials, can solve the problems of inability to formulate repairing agent, poor controllability of setting time, poor engineering economy, etc., and achieves good market promotion value, good construction stability, and repairing good effect

Active Publication Date: 2020-11-17
四川巨星新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these quick repair agents are all added to ordinary cement as admixtures, which have defects such as inconvenient construction, poor controllability of setting time, poor adhesion to the original base surface, etc., and cannot be formulated to meet the needs of repairing different engineering concrete. It is a repair agent for structures, so there are disadvantages such as poor engineering economy

Method used

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  • A kind of concrete structure repair agent and its preparation method, application method
  • A kind of concrete structure repair agent and its preparation method, application method
  • A kind of concrete structure repair agent and its preparation method, application method

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Take the preparation of 1000kg concrete structure repair agent product as an example.

[0026] Prepare the concrete structure repair agent product, the proportion is calculated according to the weight percentage, put into the mixing tank 450kg of sulfoaluminate cement clinker, 500kg of ordinary portland cement clinker, 10kg of polycarboxylate superplasticizer, and 10kg of emulsified silicone oil , 10kg of high-carbon alcohol fatty acid ester compound, 10kg of polydimethylsiloxane, and 10kg of methyl cellulose, in which the sulphoaluminate cement clinker is produced by replacing 50% of aluminum ore with aluminum slag, and its setting time: initial Set no earlier than 15 minutes, final set no later than 60 minutes, its specific surface area ≥ 400m 2 / kg. The setting time of ordinary Portland cement clinker: the initial setting is not earlier than 45 minutes, the final setting is not later than 600 minutes, and its specific surface area is ≥ 300m 2 / kg. The polycarboxyl...

Embodiment 2

[0028] Take the preparation of 1000kg concrete structure repair agent product as an example.

[0029] Prepare the concrete structure repair agent product, and its proportioning is calculated according to the weight percentage, put into the mixing tank 500kg of sulfoaluminate cement clinker, 450kg of ordinary Portland cement clinker, 20kg of polycarboxylate water reducer, high carbon alcohol 20kg of fatty acid ester compound and 10kg of hydroxyethyl methylcellulose were mixed evenly to prepare the concrete structure repair agent product of this embodiment. Then pack it into 25±0.25kg per bag or 50±0.5kg per bag.

Embodiment 3

[0031] Take the preparation of 1000kg concrete structure repair agent product as an example.

[0032] Prepare the concrete structure repair agent product, and its proportioning is calculated according to the weight percentage, put into the mixing kettle 500kg of sulphoaluminate cement clinker, 400kg of ordinary Portland cement clinker, 30kg of polycarboxylate superplasticizer, polyoxyethylene 20kg of polyoxypropylene pentaerythritol ether, 20kg of polyoxyethylene polyoxypropanol amine ether, 10kg of carboxymethyl cellulose, 10kg of ethyl cellulose, 10kg of hydroxypropyl methyl cellulose, and stir evenly to obtain the concrete of this embodiment Structural Repair Products. Then pack it into 25±0.25kg per bag or 50±0.5kg per bag.

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Abstract

The invention discloses a concrete structure healant and a preparation method thereof, and an application thereof. The healant is composed of the following raw materials by weight percentage: 45-65% of sulphate aluminium cement clinker, 30-50% of ordinary portland cement clinker, 1-3% of a polycarboxylic acid water reducer, 1-5% of an antifoaming agent, and 0.5-3% of cellulose ether; wherein the weight percentage of the raw materials is 100%. The preparation method of the healant has the advantages of simple and convenient process, and convenient construction, and the healant has the advantages of high hour strength, good surface film-forming ability, long slump retaining time, high bonding intensity, no intensity loss at anaphase, and good endurance, and overcomes the disadvantages of poor bonding intensity and anaphase intensity loss of the current concrete healants.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a concrete structure repair agent, a preparation method and an application method thereof. Background technique [0002] It is not uncommon for concrete buildings and components to be damaged due to corrosion, alternating loads, etc. during service. The reconstruction of concrete structures in various environments is a costly project, which not only consumes a lot of money, but also causes huge losses in production or life due to the suspension of concrete structures. For example, the annual maintenance and reconstruction costs of concrete projects in the United States are as high as hundreds of billions of dollars. [0003] Partial repair of damaged concrete can not only get twice the result with half the effort, but also does not affect the normal use of the concrete structure. At present, for the repair work of concrete projects such as cement concrete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B24/42C04B28/06C04B111/72
CPCC04B28/06C04B40/0042C04B2111/00482C04B2111/72C04B2201/10C04B2201/50C04B7/02C04B7/32C04B24/383C04B2103/50C04B2103/302C04B24/42C04B24/08C04B14/02
Inventor 苏笮斌仲一夫赵涛范力郑锦浩
Owner 四川巨星新型材料有限公司
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