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High-flow-state anti-cracking concrete and preparation method thereof

A concrete and high fluidity technology, applied in the field of concrete, can solve the problems of reducing the strength and bearing capacity of concrete, affecting the appearance of concrete structure, reducing the service life of concrete structure, etc., to increase durability, improve impermeability, prevent crack effect

Inactive Publication Date: 2020-08-04
上海练定新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the crack resistance of concrete is poor, which may cause cracks and spalling on the surface of the concrete structure, which will affect the appearance of the concrete structure surface, or reduce the strength and bearing capacity of the concrete, reduce the service life of the concrete structure, and cause the concrete The structure is damaged and collapsed, which seriously threatens the safety of people's lives and properties

Method used

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  • High-flow-state anti-cracking concrete and preparation method thereof
  • High-flow-state anti-cracking concrete and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0053] A kind of high-fluid anti-crack concrete, comprising the following components in parts by weight: 220 parts of cement, 130 parts of water, 30 parts of fly ash, 70 parts of mineral powder, 550 parts of fine aggregate, 1100 parts of coarse aggregate, 6 parts of superabsorbent resin particles, 20 parts of sponge rubber particles, 3 parts of steel fiber, 2 parts of epoxy resin, 4 parts of water reducing agent, wherein the sponge rubber particles are formed by crushing sponge rubber;

[0054] The preparation method of above-mentioned high-fluidity crack-resistant concrete comprises the following steps:

[0055] S1: Evenly mix superabsorbent resin particles with sponge rubber particles;

[0056] S2: adding the mixture in step S1 to water to make the superabsorbent resin particles and sponge rubber particles pre-absorb water and reach saturation to obtain a pre-absorbent mixture;

[0057] S3: Mix cement, fly ash, mineral powder, fine aggregate, coarse aggregate, steel fiber, ...

Embodiment 2

[0059] A kind of high-fluid crack-resistant concrete, comprising the following components by weight: 325 parts of cement, 165 parts of water, 60 parts of fly ash, 100 parts of mineral powder, 715 parts of fine aggregate, 1225 parts of coarse aggregate, 10.5 parts of superabsorbent resin particles, 40 parts of sponge rubber particles, 9 parts of steel fibers, 5 parts of epoxy resin, and 7 parts of water reducing agent, wherein the sponge rubber particles are formed by crushing sponge rubber;

[0060] The preparation method of above-mentioned high-fluidity crack-resistant concrete comprises the following steps:

[0061] S1: Evenly mix superabsorbent resin particles with sponge rubber particles;

[0062] S2: adding the mixture in step S1 to water to make the superabsorbent resin particles and sponge rubber particles pre-absorb water and reach saturation to obtain a pre-absorbent mixture;

[0063] S3: Mix cement, fly ash, mineral powder, fine aggregate, coarse aggregate, steel fi...

Embodiment 3

[0065] A kind of high-fluid anti-crack concrete, comprising the following components in parts by weight: 430 parts of cement, 200 parts of water, 90 parts of fly ash, 130 parts of mineral powder, 880 parts of fine aggregate, 1350 parts of coarse aggregate, 15 parts of superabsorbent resin, 60 parts of sponge rubber particles, 15 parts of steel fiber, 8 parts of epoxy resin, 10 parts of water reducing agent, wherein the sponge rubber particles are formed by crushing sponge rubber;

[0066] The preparation method of above-mentioned high-fluidity crack-resistant concrete comprises the following steps:

[0067] S1: Evenly mix superabsorbent resin particles with sponge rubber particles;

[0068] S2: adding the mixture in step S1 to water to make the superabsorbent resin particles and sponge rubber particles pre-absorb water and reach saturation to obtain a pre-absorbent mixture;

[0069] S3: Mix cement, fly ash, mineral powder, fine aggregate, coarse aggregate, steel fiber, epoxy ...

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Abstract

The invention relates to high-flow-state anti-cracking concrete comprising the following components in parts by weight: 220-430 parts of cement, 130-200 parts of water, 30-90 parts of fly ash, 70-130parts of mineral powder, 550-880 parts of a fine aggregate, 1100-1350 parts of a coarse aggregate, 6-15 parts of a super absorbent resin particles, 20-60 parts of sponge rubber particles, 3-15 parts of steel fibers, 2-8 parts of epoxy resin and 4-10 parts of a water reducing agent, wherein the sponge rubber particles are formed by crushing sponge rubber. The preparation method comprises the steps:S1, uniformly mixing the super absorbent resin particles with the sponge rubber particles; S2, adding the mixture obtained in the step S1 into water to enable the super absorbent resin particles andthe sponge rubber particles to pre-absorb water, so as to obtain a pre-water-absorbing mixture; and S3, mixing the cement, the fly ash, the mineral powder, the fine aggregate, the coarse aggregate, the steel fibers, the epoxy resin, the water reducing agent, water and the pre-water-absorbing mixture, and uniformly stirring to obtain the high-flow-state anti-crack concrete. The high-flow-state anti-cracking concrete is good in anti-cracking performance and has the effect of improving the durability of the concrete.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-fluid crack-resistant concrete and a preparation method thereof. Background technique [0002] Concrete is an indispensable and important material in today's construction projects. With the increase of investment in infrastructure in our country, the application of concrete is becoming more and more extensive. The service life of buildings constructed of concrete materials is directly related to the durability of concrete. [0003] The crack resistance of concrete is one of the key factors affecting the durability of concrete structures. Cracks often appear in actual concrete engineering structures. When the crack width exceeds a certain limit, it will not only affect the bearing capacity of concrete components, Stiffness and normal use also provide a path for the penetration of chloride ions, sulfate ions, etc., which accelerates the erosion of concrete, and at the same ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/10C04B20/02C25D7/06C25D3/38C25D5/16C04B14/48C04B18/08C04B16/08C04B24/28C04B111/20
CPCC04B28/04C04B20/1062C04B20/023C25D7/0607C25D3/38C25D5/16C04B2111/20C04B18/08C04B18/141C04B18/02C04B2103/0051C04B16/082C04B14/48C04B24/281C04B2103/302Y02W30/91
Inventor 胡建修
Owner 上海练定新材料科技有限公司
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