Concrete curing compound and preparation method thereof

A technology of concrete curing agent and dispersing agent, applied in the field of building materials, can solve the problems of affecting the appearance quality of concrete, unable to effectively prevent efflorescence of concrete capillary pores, etc., to increase the film-forming and curing effect, increase the curing effect, and improve the dispersion performance. Effect

Inactive Publication Date: 2018-11-06
FOSHAN LINGCHAO NEW MATERIAL CO LTD
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Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem that the current concrete curing agent cannot effectively prevent the efflorescence phenomenon of c

Method used

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  • Concrete curing compound and preparation method thereof

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[0028] The preparation method of modified particles is:

[0029] (1) According to the mass ratio of 6:4-9:5, put the sepiolite, nano-silica and nano-titanium dioxide into a ball mill for ball milling at 900r / min for 50 minutes, collect the ball milled material, and combine the ball milled material with a mass fraction of 98 % Sulfuric acid is mixed and soaked in a mass ratio of 4-6:13 for 2h, filtered, collected the filter residue, washed to neutrality, and dried to obtain pre-modified particles;

[0030] (2) Take 90 to 95 parts of sodium hydroxide solution, 20 to 25 parts of ferric nitrate, 10 to 15 parts of ferrous nitrate, 7 to 9 parts of succinic acid, 3 to 9 parts of 4,4-linked Pyridine, 1-3 parts of ethylenediamine, sodium hydroxide solution, ferric nitrate, ferrous nitrate, and succinic acid are put into the reactor, and oxygen is introduced from the bottom of the reactor at 900mL / min, and the temperature is set at 60~65℃ , Stir the reaction for 6h, then add 4,4-bipyridine ...

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Abstract

The invention belongs to the field of building materials, and specifically relates to a concrete curing compound and a preparation method thereof. According to the concrete curing compound and the preparation method thereof, sepiolite, nanosilicon dioxide and nanotitanium dioxide are used as raw materials; through ball grinding mixing and acidification and sulfonation treatment of concentrated sulfuric acid, the dispersing performance of particles is improved; in addition, by use of the natures that the sepiolite is softened in water and is high in permeability, the sepiolite is remodified under the atmosphere of sodium hydroxide and under the environment of ferrous ions and ferric ions; by deposition of ferrous iron and iron, the adsorption performance of the particles is improved, so that pores are combined and filled with the particles more easily, and the anti-seepage performance is improved; then, succinic acid and ethidene diamine are used as raw materials, and ions are used as aguide agent, so that an organic complex is formed; through combination of the organic complex and calcium ions and blocking of capillaries inside concrete, the whiskering phenomenon is effectively prevented.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a concrete curing agent and a preparation method thereof. Background technique [0002] After the cement concrete is poured, it is necessary to have the necessary temperature and humidity during the initial setting process to ensure sufficient moisture for the hydration reaction to proceed completely. The traditional maintenance methods include laying grass bags, plastic films and watering. These methods are time-consuming , laborious, can not effectively block the evaporation of water, low water retention rate, poor maintenance effect. [0003] In order to improve its water retention rate, various concrete curing agents have appeared at present. Concrete curing agent, also known as concrete protective agent and concrete curing fluid, is a new type of polymer preparation prepared by modern high technology. It is a liquid film-forming compound with a wide range of a...

Claims

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Application Information

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IPC IPC(8): C04B41/68
CPCC04B41/5024C04B41/68C04B41/48C04B41/46C04B41/4896C04B41/50C04B41/4905C04B41/4834C04B41/4598
Inventor 裘友玖施衍胡晓玉
Owner FOSHAN LINGCHAO NEW MATERIAL CO LTD
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