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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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, in some environments with high humidity, the durability of

Method used

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  • Anti-cracking concrete and preparation method thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0043]Example 1

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

[0045]34kg of cement,

[0046]Aggregate 26kg,

[0047]55kg of water,

[0048]Fly ash 13kg,

[0049]Anti-cracking additives, among which anti-cracking additives include 20kg of amylose, 30kg of calcium formate and 13kg of acrylic acid. The particle size of the anti-cracking additives is 4mm.

[0050]The preparation steps of the anti-cracking additive are as follows:

[0051]W1: After mixing amylose, acrylic acid and water, spray granulation, 20 minutes to obtain starch balls:

[0052]W2: Mix calcium formate with water to get a paste that is sprayed on the outside of the starch ball, and after drying, an anti-cracking additive is obtained.

[0053]An anti-cracking concrete and a preparation method thereof, including the following steps:

[0054]W1: Put the cement, water and aggregate in a small concrete mixer with a rated volume of 60L and mix for 30 minutes to obtain the initial mixture;

[0055]W2:...

Example Embodiment

[0073]Example 6

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

Example Embodiment

[0075]Example 7

[0076]An anti-cracking concrete. Based on Example 1, triethanolamine is selected as the early strength agent, and the amount of triethanolamine is the same as the amount of calcium formate in Example 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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