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High-toughness bendable self-healing anti-seismic cement-based composite material

A composite material and cement-based technology, applied in the field of cement, can solve the problems of easy brittle failure, low fracture toughness, poor durability, etc., and achieve the effects of good bending strength, good processing performance, and good splitting tensile strength.

Pending Publication Date: 2021-03-09
杭州联体消修化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In 2019, my country's concrete output was 2.55 billion cubic meters, exceeding the total output of other countries in the world. Traditional concrete has the following shortcomings: low fracture toughness, easy to crack; poor durability after cracking, easy to deteriorate in harsh environments; low ductility, easy to brittle failure, In order to solve the above problems, a high toughness bendable self-healing anti-seismic cement-based composite material is proposed to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-toughness, bendable, self-healing, anti-seismic cement-based composite material is composed of the following materials in parts by weight: 50 parts of cement, 20 parts of concrete sealing and dense material, 15 parts of glass fiber, 10 parts of nylon fiber, 10 parts of titanium dioxide, zinc oxide 10 parts, 5 parts of carboxylated styrene-butadiene latex, 60 parts of sand, 3 parts of water reducer, 3 parts of graphene, 2 parts of Arecron 3S fiber, 1 part of superplasticizer and 50 parts of water.

[0022] As a specific optimization scheme of this embodiment, the silicon powder is silicon carbide, and the particle size of silicon carbide is distributed in the particle size range of 1-3 mm.

[0023] As a specific optimization scheme of this embodiment, the cement is treated fly ash fly ash.

[0024] As a specific optimization scheme of this embodiment, the water reducer is a polycarboxylate water reducer.

[0025] As a specific optimization scheme of this embodime...

Embodiment 2

[0028] A high-toughness, bendable, self-healing, anti-seismic cement-based composite material is composed of the following materials in parts by weight: 80 parts of cement, 30 parts of concrete sealing and dense material, 20 parts of glass fiber, 15 parts of nylon fiber, 10 parts of titanium dioxide, zinc oxide 10 parts, 8 parts of carboxylated styrene-butadiene latex, 75 parts of sand, 5 parts of water reducer, 5 parts of graphene, 3 parts of Arecron 3S fiber, 2 parts of superplasticizer and 60 parts of water.

[0029] As a specific optimization scheme of this embodiment, the silicon powder is silicon carbide, and the particle size of silicon carbide is distributed in the particle size range of 1-3 mm.

[0030] As a specific optimization scheme of this embodiment, the cement is treated fly ash fly ash.

[0031] As a specific optimization scheme of this embodiment, the water reducer is a polycarboxylate water reducer.

[0032] As a specific optimization scheme of this embodim...

Embodiment 3

[0035] A high-toughness, bendable, self-healing, anti-seismic cement-based composite material is composed of the following materials in parts by weight: 100 parts of cement, 40 parts of concrete sealing and dense material, 30 parts of glass fiber, 20 parts of nylon fiber, 20 parts of titanium dioxide, zinc oxide 20 parts, carboxylated styrene-butadiene latex 10 parts, sand 90 parts, water reducing agent 8 parts, graphene 6 parts, Arecron 3S fiber 4 parts, superplasticizer 3 parts and water 80 parts.

[0036] As a specific optimization scheme of this embodiment, the silicon powder is silicon carbide, and the particle size of silicon carbide is distributed in the particle size range of 1-3 mm.

[0037] As a specific optimization scheme of this embodiment, the cement is treated fly ash fly ash.

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Abstract

The invention discloses a high-toughness bendable self-healing anti-seismic cement-based composite material, which is prepared from the following substances: cement, a concrete sealing compact material, glass fibers, nylon fibers, titanium dioxide, zinc oxide, carboxylic butadiene-styrene latex, sand, a water reducing agent, graphene, Arecron 3S fibers, a super plasticizer and water. The cement-based composite material is good in compressive strength, bending strength and splitting tensile strength, the weight of cement is 40% lighter than that of conventional cement, the toughness is 500 times higher than that of conventional cement, the most obvious characteristic is that the cement-based composite material can bear quite large pressure in a bent state, and due to the fact that specially-prepared polymer fiber particles exist in the material, the cement can bear large ECC and is mainly suitable for repairing concrete structure sections, coating concrete structure surfaces, thickeningand reinforcing the lower portion of a bridge bed plate and other various structures such as reinforcing dams and tunnels, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of cement, in particular to a high-toughness, bendable, self-healing, anti-seismic cement-based composite material. Background technique [0002] Cement: powdery hydraulic inorganic gelling material, mixed with water to form a slurry, can be hardened in the air or in water, and can firmly bind sand, stone and other materials together. The mixture of early lime and volcanic ash and modern Lime pozzolanic cement is very similar to that of lime pozzolanic cement. Concrete made of crushed stones bonded with it not only has high strength after hardening, but also can resist the erosion of fresh water or salt water. For a long time, it has been used as an important cementing material and is widely used. For civil construction, water conservancy, national defense and other projects, general-purpose cement: the cement usually used in general civil construction projects, general-purpose cement mainly refers to the si...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B111/20
CPCC04B28/00C04B2111/2053C04B2103/0068C04B14/42C04B16/0691C04B14/305C04B14/30C04B24/2676C04B14/06C04B2103/302C04B14/024C04B20/0048C04B2103/32C04B22/002C04B14/324
Inventor 张东亮
Owner 杭州联体消修化工有限公司
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