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Anti-cracking concrete and preparation method thereof

A concrete and anti-cracking technology, which is applied in the field of concrete, can solve the problems of concrete structure collapse and poor durability, and achieve the effects of improving cracking resistance, reducing alkali content, and inhibiting alkali-aggregate reaction

Active Publication Date: 2021-02-09
唐山友顺混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in some environments with high humidity, the durability of existing concrete is poor, and even serious concrete structures will collapse

Method used

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  • Anti-cracking concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of anti-cracking concrete obtained by stirring and mixing the following raw materials in parts by mass,

[0045] 34kg of cement,

[0046] Aggregate 26kg,

[0047] 55kg of water,

[0048] Fly ash 13kg,

[0049] Anti-cracking auxiliary agent, wherein the anti-cracking auxiliary agent includes 20kg of amylose, 30kg of calcium formate and 13kg of acrylic acid, and the particle size of the anti-cracking auxiliary agent is 4mm.

[0050] Wherein the preparation steps of anti-cracking auxiliary agent are as follows,

[0051] W1: Spray granulation after mixing amylose with acrylic acid and water, and obtain starch balls in 20 minutes:

[0052] W2: Mix calcium formate with water to obtain a paste, spray it on the outside of the starch ball, and obtain an anti-cracking additive after drying.

[0053] A crack-resistant concrete and a preparation method thereof, comprising the steps of:

[0054] W1: Mix cement, water and aggregate in a small concrete mixer with a rated ...

Embodiment 6

[0074] An anti-cracking concrete, based on the basis of Example 1, the starch is amylopectin, and the amount of amylopectin is the same as that of amylose in Example 1.

Embodiment 7

[0076] A kind of anti-cracking concrete, based on the basis of embodiment 1, triethanolamine is selected as the early strength agent, and the consumption of triethanolamine is the same as that of calcium formate in embodiment 1.

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Abstract

The invention relates to the technical field of concrete, in particular to anti-cracking concrete and a preparation method thereof. The anti-cracking concrete is prepared by stirring and mixing the following raw materials in parts by mass: 32-36 kg of cement, 24-28 kg of aggregate, 50-60 kg of water, 10-15 kg of fly ash and 10-15 kg of acrylic acid through. The raw materials can be used for preparing concrete and have the advantage of improving the strength of the concrete. In addition, the preparation method disclosed by the invention has the advantage of improving the permeability resistanceof the concrete.

Description

technical field [0001] The application relates to the technical field of concrete, more specifically, it relates to a cracking-resistant concrete and a preparation method thereof. Background technique [0002] Concrete is one of the most important contemporary civil engineering materials. It is prepared in a certain proportion by cementitious materials, granular aggregates (also known as aggregates), water, and admixtures and admixtures added when necessary. It is a kind of artificial stone material that is uniformly stirred, densely formed, cured and hardened. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. At the same time, concrete also has high compressive strength and durability. Well, features such as a wide range of intensity levels. [0003] When existing concrete is produced and used, alkali-aggregate reaction will occur inside it. Concrete alkali-aggregate reaction refers to the fu...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/50C04B2111/343C04B14/02C04B18/08C04B24/04C04B24/38
Inventor 郝团
Owner 唐山友顺混凝土有限公司
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