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

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...

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