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High-efficiency retarding water reducer for concrete and preparation method thereof

A technology of retarder and water reducer, which is applied in the field of concrete retarder and water reducer, can solve the problems of corroded steel structure, unfavorable construction, low production efficiency, etc., and achieves the effect of increasing strength and not easy to coagulate

Inactive Publication Date: 2017-07-21
陈凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the concrete retarders and water reducers used in the construction industry are prepared and used separately from the retarders or water reducers. The industrial preparation process is relatively complicated, and the production efficiency is low. The retarders and water reducers are dissolved in After watering, it takes a long time to stir and mix to make the retarder and water reducer compatible with water, and it cannot be left for a long time after dissolving. If the concrete condenses for a long time, it is still not conducive to construction.
Moreover, some chemical substances in the retarder and water reducing agent will corrode the steel structure for a long time.

Method used

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  • High-efficiency retarding water reducer for concrete and preparation method thereof
  • High-efficiency retarding water reducer for concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] High-efficiency retarding and water reducing agent for concrete, the composition is as follows:

[0019] Including water reducer A, retarder B, retarder C and shrinkage reducer D, the ratio of water reducer A, retarder B, retarder C and shrinkage reducer D is 1200:20:10:1; Water agent A includes by weight: 1200 parts of naphthalene sulfonate formaldehyde condensate water reducer, 400 parts of amino acid salt and alkali water agent; retarder B includes 90 parts by weight of castor oil; retarder C by weight The parts include: 300 parts of calcium carbonate, 64 parts of citric acid, and 50 parts of sodium tripolyphosphate. Shrinkage reducing agent D includes 2 parts by weight of cellulose ether.

[0020] The preparation method of the pesticide emulsifier of the present invention is as follows, including the following steps:

[0021] ①Preparation of water reducer A: Mix and stir the naphthalene sulfonate formaldehyde condensate water reducer and amino acid salt and alkali water ...

Embodiment 2

[0027] High-efficiency retarding and water reducing agent for concrete, the composition is as follows:

[0028] Including water reducer A, retarder B, retarder C and shrinkage reducer D, the ratio of water reducer A, retarder B, retarder C and shrinkage reducer D is 1200:20:10:1; Aqueous agent A includes by weight: 1400 parts of naphthalene sulfonate formaldehyde condensate water reducer and 500 parts of amino acid salt-alkali aqueous agent; retarder B includes 100 parts by weight of castor oil; retarder C by weight The parts include: 400 parts of calcium carbonate, 74 parts of citric acid, and 60 parts of sodium tripolyphosphate. Shrinkage reducing agent D includes 3 parts by weight of cellulose ether.

[0029] The preparation method of the pesticide emulsifier of the present invention is as follows, including the following steps:

[0030] ①Preparation of water reducer A: Mix and stir the naphthalene sulfonate formaldehyde condensate water reducer and amino acid salt and alkali wa...

Embodiment 3

[0036] High-efficiency retarding and water reducing agent for concrete, the composition is as follows:

[0037] Including water reducer A, retarder B, retarder C and shrinkage reducer D, the ratio of water reducer A, retarder B, retarder C and shrinkage reducer D is 1200:20:10:1; Water agent A includes by weight: 1300 parts of naphthalenesulfonate formaldehyde condensate water reducer, 450 parts of amino acid salt and alkali water agent; retarder B includes: 95 parts by weight of castor oil; retarder C by weight Servings include: 350 parts of calcium carbonate, 70 parts of citric acid, and 55 parts of sodium tripolyphosphate. Shrinkage reducing agent D includes 2 parts by weight of cellulose ether.

[0038] The preparation method of the pesticide emulsifier of the present invention is as follows, including the following steps:

[0039] ①Preparation of water reducer A: Mix and stir the naphthalene sulfonate formaldehyde condensate water reducer and amino acid salt and alkali water a...

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Abstract

The application discloses a high-efficiency retarding water reducer for concrete and a preparation method thereof. The high-efficiency retarding water reducer comprises a water reducer A, a retarder B, a retarder C and a shrinkage reducing agent D, wherein the ratio of the water reducer A, the retarder B, the retarder C and the shrinkage reducing agent D is 1,200:20:10:1; the water reducer A comprises the following components in parts by weight: 1,200 to 1,400 parts of a naphthalenesulfonic acid-formaldehyde condensate water reducer and 400 to 500 parts of an amino acid salt water reducer; the retarder B comprises 90 to 100 parts by weight of castor oil; the retarder C comprises the following components in parts by weight: 300 to 400 parts of calcium carbonate, 64 to 74 parts of citric acid and 50 to 60 parts of sodium triphosphate; the shrinkage reducing agent D comprises 2 to 3 parts by weight of cellulose ether. After being used, the high-efficiency retarding water reducer for the concrete can be stirred and mixed for a short time to be rapidly dissolved and dispersed in water, and can be stored for a long time; the coagulation rate is low, and the strength is strengthened.

Description

Technical field [0001] The invention relates to a concrete retarding water-reducing agent, in particular to a high-efficiency retarding water-reducing agent for concrete and a preparation method thereof. Background technique [0002] The majority of concrete retarders and water reducers used in the construction industry are prepared and used separately from retarders or water reducers. The industrial preparation process is relatively complicated and the production efficiency is low. The retarders and water reducers are dissolving After water, it takes a long time to mix and mix to make the retarder and water reducer compatible with water, and can not be placed for a long time after dissolution. If the concrete sets for a long time, it is still not conducive to construction. Moreover, certain chemicals in retarders and water reducers will corrode the steel structure for a long time. Summary of the invention [0003] The purpose of the present invention is to provide a high-efficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B2103/302
Inventor 陈凯
Owner 陈凯
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