Concrete-curing agent applicable to strong-wind arid area and preparation method thereof

A concrete curing agent and drought technology, applied in the field of building materials, can solve problems such as difficulty in concrete curing, and achieve the effects of solving difficult curing, good weather resistance and good film-forming properties

Active Publication Date: 2012-01-18
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Applying this curing agent to concrete construction in the windy and arid areas of the west can eff

Method used

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  • Concrete-curing agent applicable to strong-wind arid area and preparation method thereof
  • Concrete-curing agent applicable to strong-wind arid area and preparation method thereof
  • Concrete-curing agent applicable to strong-wind arid area and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1 (The following components and contents are calculated in parts by mass):

[0032]

[0033]

[0034] (1) First, weigh the balance of deionized water according to the preparation ratio, and add thickener, silicone / fluorine-modified propylene benzene emulsion, siloxane organic silicon compound, film-forming aid, and Plasticizer and anti-ultraviolet agent to prepare mixed emulsion.

[0035] (2) Adjust the PH value of the mixed emulsion to weakly alkaline, and add the modified sodium silicate solution prepared in advance under the condition of low-speed stirring.

[0036] (3) Add defoamer, stir at high speed for a period of time, then add anti-mold agent and leveling agent at low speed, and stand still for a period of time to obtain a concrete curing agent suitable for windy and arid areas. The test water retention rate is 86%.

Example Embodiment

[0037] Example 2 (The following components and contents are calculated in parts by mass)

[0038]

[0039] (1) First, weigh the balance of deionized water according to the preparation ratio, and add thickener, silicone / fluorine-modified propylene benzene emulsion, siloxane organic silicon compound, film-forming aid, and Plasticizer and anti-ultraviolet agent to prepare mixed emulsion.

[0040] (2) Adjust the PH value of the mixed emulsion to weakly alkaline, and add the modified sodium silicate solution prepared in advance under the condition of low-speed stirring.

[0041] (3) Add defoamer, stir at high speed for a period of time, then add anti-mold agent and leveling agent at low speed, and stand still for a period of time to obtain a concrete curing agent suitable for windy and arid areas. The test water retention rate is 94%.

Example Embodiment

[0042] Example 3 (The following components and contents are calculated in parts by mass)

[0043]

[0044]

[0045] (1) First, weigh the balance of deionized water according to the preparation ratio, and add thickener, silicone / fluorine-modified propylene benzene emulsion, siloxane organic silicon compound, film-forming aid, and Plasticizer and anti-ultraviolet agent to prepare mixed emulsion.

[0046] (2) Adjust the PH value of the mixed emulsion to weakly alkaline, and add the modified sodium silicate solution prepared in advance under the condition of low-speed stirring.

[0047] (3) Add defoamer, stir at high speed for a period of time, then add anti-mold agent and leveling agent at low speed, and stand still for a period of time to obtain a concrete curing agent suitable for windy and arid areas. The test water retention rate is 89%.

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Abstract

The invention relates to a concrete-curing agent applicable to a strong-wind arid area and a preparation method thereof. The curing agent is prepared through the following steps of: by using an organic/inorganic composite system with an organic-silicon/fluorine modified propyl-benzene emulsion and active aluminum-silicate modified sodium-silicate solution as a main fluid and adopting a siloxane organic-silicon compound with a certain reactive group as a cross-linked component, compounding with a film-forming aid, a defoaming agent, a thickening agent, a wetting and dispersing agent, a mildew-proof agent, a flatting agent, an ultraviolet-resisting agent and deionized water under the condition at a normal temperature. The production process of the concrete-curing agent is simple, and reaction conditions are easy to control. The water-resisting property, the scrubbing-resisting property, the durability and the flexibility of a film after the film of the curing agent is formed are improved by introducing the propyl-benzene emulsion of organic silicon/fluorine onto a high-molecular chain; and the compactness of the film is enhanced by introducing the modified sodium-silicate solution, thereby the water evaporation of a concrete surface is greatly reduced. The curing agent has the technical characteristics that the curing agent can be sprayed after concrete is finished, the film-forming speed is high, the water retention rate is high, ultraviolet rays are resisted, and the like, and is applicable to the concrete curing of western strong-wind arid areas.

Description

[0001] Technical field: The present invention relates to building materials, in particular to a concrete curing agent suitable for strong wind and dry areas and its preparation method. Background technique [0002] Conservation is an important link in the process of concrete construction, which directly affects the mechanical and durable properties of concrete and the service life of structures. First of all, the strength of concrete comes from the hydration of cement. Good maintenance prevents the rapid evaporation of water, ensures the water needed for cement hydration, and at the same time inhibits the occurrence of early shrinkage cracks, significantly improving the durability of concrete; secondly, reasonable The maintenance will reduce the weak interface between the aggregate inside the concrete and the cement slurry, reduce the permeability of the structure to a certain extent, and prolong the service life of the concrete. The traditional maintenance method is to ensure...

Claims

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Application Information

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IPC IPC(8): C04B40/04C04B41/49
Inventor 朱长华王保江孔庆欣李享涛王月华李连吉谢永江
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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