Concrete and preparation method thereof

A concrete and capsule technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of limited supply of sulfate-resistant cement, high price, and inability to achieve anti-corrosion effects.

Active Publication Date: 2021-09-14
西安天盛混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sulfate-resistant cement, however, is in limited supply and expensive
The method of adding mineral admixtures can improve cement hydration density and reduce salt corrosi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0063] A preparation method of pH-responsive capsules, comprising the following steps:

[0064] S1, get 7kg barium hydroxide and 18L water to form barium hydroxide aqueous solution, 7kgJK-H 2 Add O(A) compound amino alcohol steel rust inhibitor to barium hydroxide aqueous solution and stir for 15 minutes to form solution A; prepare L-lysine solution with 16kgL-lysine and 25L water, and add L-lysine to solution A Acid solution, stirred for 20min to obtain solution B;

[0065] S2. Mix 15L cyclohexane and 5L chloroform to form mixed organic solvent A, add 16kg terephthaloyl chloride and 4kg glyceryl monostearate to mixed organic solvent A to obtain mixed organic solvent B, then pour solution B into the mixed organic solvent The emulsion was prepared by stirring in organic solvent B for 15 min, and then 30 L of cyclohexane was added to stop the interfacial polycondensation reaction of L-lysine and terephthaloyl chloride, and then the crude pH-responsive capsules were separated by...

preparation example 2

[0068] A preparation method of pH-responsive capsules, comprising the following steps:

[0069] S1, get 6kg barium hydroxide and 15L water to form barium hydroxide aqueous solution, mix 6kgJK-H 2 Add O(A) compound amino alcohol steel rust inhibitor to barium hydroxide aqueous solution and stir for 15 minutes to form solution A; prepare L-lysine solution with 15kgL-lysine and 25L water, and add L-lysine to solution A Acid solution, stirred for 20min to obtain solution B;

[0070] S2. Mix 14L cyclohexane and 7L chloroform to form mixed organic solvent A, add 15kg terephthaloyl chloride and 3kg glyceryl monostearate to mixed organic solvent A to obtain mixed organic solvent B, then pour solution B into the mixed organic solvent The emulsion was prepared by stirring in organic solvent B for 15 min, and then 30 L of cyclohexane was added to stop the interfacial polycondensation reaction of L-lysine and terephthaloyl chloride, and then the crude pH-responsive capsules were separate...

preparation example 3

[0073] A preparation method of pH-responsive capsules, comprising the following steps:

[0074] S1, get 8kg barium hydroxide and 20L water to form barium hydroxide aqueous solution, mix 8kgJK-H 2 Add O(A) compound amino alcohol steel rust inhibitor to barium hydroxide aqueous solution and stir for 15 minutes to form solution A; prepare L-lysine solution with 18kgL-lysine and 28L water, and add L-lysine to solution A Acid solution, stirred for 20min to obtain solution B;

[0075] S2. Mix 20L cyclohexane and 5L chloroform to form mixed organic solvent A, add 18kg terephthaloyl chloride and 5kg glyceryl monostearate to mixed organic solvent A to obtain mixed organic solvent B, then pour solution B into the mixed organic solvent The emulsion was prepared by stirring in organic solvent B for 15 min, and then 30 L of cyclohexane was added to stop the interfacial polycondensation reaction of L-lysine and terephthaloyl chloride, and then the crude pH-responsive capsules were separate...

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PUM

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Abstract

The invention relates to the field of building materials, and particularly discloses concrete and a preparation method thereof. The concrete is prepared from the following raw materials: cement, water, fly ash, slag powder, fine aggregate, coarse aggregate, a high-performance polycarboxylate superplasticizer and a pH response type capsule. The pH response type capsule comprises a coating and a core material, the coating is a poly (L-lysine-amino-terephthalic acid) microcapsule film, and the core material comprises barium hydroxide and an amino alcohol corrosion inhibitor; the preparation method comprises the following steps: mixing and uniformly stirring the cement, the slag powder, the fly ash, the coarse aggregate and the fine aggregate to obtain a solid mixture; adding the rest raw materials except the pH response type capsule and water into the solid mixture, stirring to obtain a concrete matrix, adding the pH response type capsule into the concrete matrix, and stirring to obtain the concrete. The concrete has the advantages that the anti-corrosion effect of the concrete is improved, and then the durability of the concrete is improved.

Description

technical field [0001] This application relates to the field of building materials, more specifically, it relates to a concrete and its preparation method. Background technique [0002] Coastal ports, salt pans, and saline soil areas usually contain a large amount of sulfate and chloride salts, which have a serious corrosion effect on concrete and steel bars. When steel bars are corroded by chloride ions or sulfate ions, steel bars will quickly corrode and age. The steel bars will break irregularly, and the concrete will also crack at the same time, affecting the strength of itself and the quality of the entire building. Therefore, the durability of reinforced concrete structures in the above-mentioned erosion areas has become a worldwide concern. [0003] Existing traditional methods use sulfate-resistant cement, or mix a certain amount of mineral admixtures in concrete. Sulfate-resistant cement, however, is in limited supply and expensive. The method of adding mineral a...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/20
CPCC04B28/04C04B2201/50C04B2111/20C04B18/08C04B18/141C04B14/06C04B14/02C04B2103/302C04B22/064C04B2103/61C04B24/123C04B24/00C04B24/005C04B24/085C04B16/0633Y02W30/91
Inventor 侯龙龙秦磊
Owner 西安天盛混凝土有限公司
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