Repairing mortar for concrete free of exposed reinforcing bars and preparation method thereof

A repairing mortar and configuration method technology, applied in the field of concrete repairing mortar, can solve the problems of poor wear resistance, slow setting speed, poor cohesiveness, etc., and achieve the effects of fast setting speed, increased strength and increased strength

Pending Publication Date: 2021-06-11
CHONGQING ZONJO RENEWABLE RESOURCES DEV CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of unexposed concrete repair mortar and configuration method, to solve the traditional unexposed concrete repair mortar proposed in the above background technology with slow setting speed, low strength, strong corrosion, poor wear resistance and stickiness. poor knot problem

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  • Repairing mortar for concrete free of exposed reinforcing bars and preparation method thereof

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] see figure 1 , an embodiment provided by the present invention:

[0028] An unexposed concrete repair mortar and a configuration method, comprising the following raw materials:

[0029] Fast-hardening sulfoaluminate cement, Portland cement, fly ash, sand, water, water reducing agent and recycled fine powder;

[0030] And the components in parts by weight of each raw material are:

[0031] 22-38 parts of fast-hardening sulfoa...

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Abstract

The invention discloses repairing mortar for concrete free of exposed reinforcing bars and a preparation method thereof. The repairing mortar comprises following raw materials by weight: 22-38 parts of quick-hardening sulphoaluminate cement, 3-17 parts of Portland cement, 2-7 parts of fly ash, 42-57 parts of sand, 11-22 parts of water, 0.8-4 parts of a water reducing agent and 3-7 parts of regenerated micro powder. Through cooperation of the raw materials in parts by weight, the raw materials are perfectly and uniformly mixed, so that the mortar is high in condensation speed, can be more quickly condensed compared with other products in unit time, is convenient to fill fine cracks, is weak in base and low in corrosion, and slows down the corrosion speed of concrete. After the mortar is condensed in cracks, a hard polymer is formed and is bonded in the cracks to repair the cracks, so that the problems of low condensation speed, low strength, high corrosivity, poor wear resistance and poor cohesiveness of the traditional repairing motor for concrete free of exposed reinforcing bars are solved.

Description

technical field [0001] The invention relates to the technical field of concrete repair mortar, in particular to an unexposed concrete repair mortar and a configuration method. Background technique [0002] Concrete repair mortar is polymer-modified mortar, which is used for large-scale repair of concrete surface, including defects such as honeycomb, pockmarked surface, damage of protective layer, and leakage of reinforcement caused by wear, freeze-thaw damage, chemical corrosion, steel corrosion, fire, etc. ; With waterproof and anti-corrosion function, it can be used for repair or new construction, and can repair and protect the surface layer of concrete projects such as bridges, cooling towers, and sewage treatment tanks. [0003] Reinforced concrete is a common form of construction in construction projects. After the concrete is solidified, small cracks appear on the surface of the concrete structure due to various reasons. The strength of the concrete structure, when re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/72
CPCC04B28/06C04B2111/723C04B7/02C04B18/08C04B14/06C04B2103/302
Inventor 达瓦扎西陈先勇战琦琦陈克凡田浩张荣鹍向天予
Owner CHONGQING ZONJO RENEWABLE RESOURCES DEV CO LTD
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