Multifunctional concrete additive and preparation method thereof

A technology for concrete and additives, applied in the field of building materials, can solve the problems of poor maintenance effect, single function, high cost, etc., and achieve the effects of low preparation cost, excellent comprehensive performance and improved construction performance.

Inactive Publication Date: 2019-04-19
杨记周
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared multifunctional concrete additive overcomes the disadvantages of existing concrete additives, such as poor maintenance effect, high dosage, high cost, and single function, and has excellent comprehensive performance, multiple functions, and better maintenance effect on concrete. Significant, less dosing advantages

Method used

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  • Multifunctional concrete additive and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A multifunctional concrete additive, comprising the following components in parts by weight: 25 parts of polybazedoxifene di-beta-D-glucuronide 2,2'-bissulfonic acid benzidine amide, polyoxyethylene lauryl ether carboxylate 10 parts of acid-modified mono(6-polyethylene polyamine-6-deoxy) beta-cyclodextrin, 5 parts of active silica powder, 5 parts of ethanol, and 25 parts of water.

[0030] The preparation method of the polybazedoxifene di-beta-D-glucuronide 2,2'-disulfonic acid benzidine amide comprises the following steps:

[0031] Step S1: Dissolve 54.6 g of bazedoxifene di-beta-D-glucuronide in 200 g of N,N-dimethylformamide, then add 10 g of tert-butyldimethylsilyl chloride and 3 g of imidazole, Stir the reaction at 30°C for 10 hours, then remove N,N-dimethylformamide by rotary evaporation, wash the product with ethanol three times, and then remove ethanol by rotary evaporation to obtain an intermediate product;

[0032] Step S2: Dissolve 28.3g of the intermediate ...

Embodiment 2

[0037] A multifunctional concrete additive, comprising the following components in parts by weight: 27 parts of polybazedoxifene di-beta-D-glucuronide 2,2'-bissulfonic acid benzidine amide, polyoxyethylene lauryl ether carboxylate 11 parts of acid-modified mono(6-polyethylene polyamine-6-deoxy) beta-cyclodextrin, 6 parts of active silica powder, 6 parts of ethanol, and 28 parts of water.

[0038] The preparation method of the polybazedoxifene di-beta-D-glucuronide 2,2'-disulfonic acid benzidine amide comprises the following steps:

[0039] Step S1: Dissolve 54.6 g of bazedoxifene di-beta-D-glucuronide in 230 g of N,N-dimethylformamide, and then add 10 g of tert-butyldimethylsilyl chloride and 3.5 g of imidazole , stirring and reacting at 33°C for 10.5 hours, then rotary evaporating to remove N,N-dimethylformamide, washing the product with ethanol 4 times, and then rotary evaporating to remove ethanol to obtain an intermediate product;

[0040] Step S2: Dissolve 28.3g of the i...

Embodiment 3

[0045] A multifunctional concrete additive, comprising the following components in parts by weight: 30 parts of polybazedoxifene di-beta-D-glucuronide 2,2'-bissulfonic acid benzidine amide, polyoxyethylene lauryl ether carboxylate 13 parts of acid-modified mono(6-polyethylene polyamine-6-deoxy) beta-cyclodextrin, 7 parts of active silica powder, 8 parts of ethanol, and 30 parts of water.

[0046] The preparation method of the polybazedoxifene di-beta-D-glucuronide 2,2'-disulfonic acid benzidine amide comprises the following steps:

[0047] Step S1: Dissolve 54.6 g of bazedoxifene di-beta-D-glucuronide in 250 g of N,N-dimethylformamide, then add 10 g of tert-butyldimethylsilyl chloride and 4 g of imidazole, Stir the reaction at 35°C for 11 hours, then remove N,N-dimethylformamide by rotary evaporation, wash the product with ethanol 4 times, and remove ethanol by rotary evaporation to obtain an intermediate product;

[0048] Step S2: 28.3g of the intermediate product, 10g of 2,...

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Abstract

The invention provides a multifunctional concrete additive. The additive includes, by weight, 25-35 parts of polybazedoxifene-beta-D-glucuronide 2,2'-benzidinedisulfonic acid amide, 10-15 parts of polyoxyethylene lauryl ether carboxylic acid modified mono(6-polyethylene polyamine-6-deoxy)beta cyclodextrin, 5-10 parts of active silicon powder, 5-10 parts of ethanol, and 25-35 parts of water. A preparation method of the additive is also disclosed. The additive has advantages of being excellent in comprehensive performance, various in function, significant in concrete maintenance effect and lessin content.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a multifunctional concrete additive and a preparation method thereof. Background technique [0002] With the development of science and technology, people have higher and higher requirements for construction engineering technology, engineering quality and service life of buildings. Concrete is one of the most important building materials at present, and its quality and performance have naturally attracted widespread attention. Its performance and quality directly affect the quality of the project and the service life of the building. Therefore, the development of concrete materials with excellent performance has become a hot topic in the industry. [0003] An ideal concrete material needs to have high strength, high fluidity and high durability at the same time. However, in actual engineering applications, concrete in the prior art is often exposed to various harsh e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C08G81/00C08G73/02
CPCC04B40/0039C08G73/02C08G81/00C04B24/166C04B24/383C04B14/062C04B24/02C04B22/002C04B24/121
Inventor 杨记周
Owner 杨记周
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