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Auto-repairing concrete and preparation method thereof

An automatic repair and concrete technology, applied in the field of concrete, can solve the problems of reducing the service life of concrete, difficult damage detection, inconvenient construction and transportation, etc., and achieves the effect of prolonging the service life, improving the repair function and reducing the production cost.

Inactive Publication Date: 2017-11-07
佛山杰致信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to detect the stress and damage of the structure inside the existing concrete, and it is difficult to repair the concrete when it is damaged during use, which causes inconvenience to construction and transportation, and also greatly reduces the service life of the concrete

Method used

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  • Auto-repairing concrete and preparation method thereof
  • Auto-repairing concrete and preparation method thereof
  • Auto-repairing concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A self-repairing concrete, including the following material components, in parts by weight:

[0027] 500 parts of cement; 600 parts of sand and gravel; 1000 parts of coarse aggregate; 5 parts of sulfamate condensation water reducing agent; 500 parts of automatic repair additives; 50 parts of carbon fiber;

[0028] The automatic repair additive includes the following material components, in parts by weight: 80 parts of undisturbed graphene or graphene oxide; 200 parts of repair material; 60 parts of glass fiber; 40 parts of carbon fiber; 80 parts of piezoelectric ceramic; Material, microbeads include core material and membrane material; the core material is a 1:1 mixture of nano-nickel aluminum alloy and nano-nickel-titanium alloy; the membrane material is polyoxyethylene; the volume ratio of the core material and the membrane material is 2:1;

[0029] Coarse aggregate is waste concrete coarse aggregate, the particle size of coarse aggregate and sand is less than 4.50mm; the le...

Embodiment 2

[0034] A self-repairing concrete, including the following material components, in parts by weight:

[0035] 500 parts of cement; 750 parts of sand and gravel; 800 parts of coarse aggregate; 10 parts of sulfamate condensation type water reducing agent; 400 parts of automatic repair additives; 30 parts of carbon fiber;

[0036] The automatic repair additive includes the following material components, in parts by weight: 50 parts of undisturbed graphene or graphene oxide; 200 parts of repair material; 60 parts of glass fiber; 60 parts of carbon fiber; 50 parts of piezoelectric ceramic; Material, microbeads include core material and membrane material; the core material is a 1:1 mixture of nano-nickel aluminum alloy and nano-nickel-titanium alloy; the membrane material is polyoxyethylene; the volume ratio of the core material and the membrane material is 2:1;

[0037] Coarse aggregate is waste concrete coarse aggregate, the particle size of coarse aggregate and sand is less than 4.50mm; t...

Embodiment 3

[0042] A self-repairing concrete, including the following material components, in parts by weight:

[0043] 400 parts of cement; 650 parts of sand and gravel; 1000 parts of coarse aggregate; 5 parts of sulfamate condensation water reducing agent; 450 parts of automatic repair additives; 50 parts of carbon fiber;

[0044] The automatic repair additive includes the following material components, in parts by weight: 70 parts of undisturbed graphene or graphene oxide; 200 parts of repair material; 40 parts of glass fiber; 50 parts of carbon fiber; 60 parts of piezoelectric ceramic; Material, microbeads include core material and membrane material; core material is nano-nickel aluminum alloy; membrane material is polyoxyethylene; the volume ratio of core material to membrane material is 2:1;

[0045] The coarse aggregate is waste concrete coarse aggregate, the particle size of coarse aggregate and sand is less than 4.50mm; the length of carbon fiber is 20mm, and the particle size of repair...

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Abstract

The invention discloses an auto-repairing concrete and a preparation method thereof. The concrete is prepared from the following components in parts by weight: 400 parts of cement, 650 parts of sands, 1000 parts of coarse aggregate, 7 parts of sulfamate condensation type water reducer, 480 parts of auto-repairing additive and 40 parts of carbon fibers, wherein the auto-repairing additive is prepared from the following components in parts by weight: 70 parts of original graphene or oxidized graphene, 200 parts of a repairing material, 45 parts of glass fibers, 60 parts of carbon fibers and 70 parts of piezoelectric ceramics. In the concrete, the auto-repairing additive has excellent electrical property, and the repairing material is charged by electrifying when the concrete cracks after being used, so that different grain areas are formed around the material; and grains move back and forth according to different charges, so that the effect of automatically repairing cracks is achieved.

Description

Technical field [0001] The invention relates to the field of concrete, in particular to an automatic repair type concrete capable of automatic detection and repair and a preparation method thereof. Background technique [0002] Concrete is the most commonly used raw material in construction, municipal engineering and other fields. As the population increases and the process of urbanization accelerates, the demand for concrete consumption in our country is increasing; this also leads to the increasing demand for aggregates, the main raw material of concrete. Traditional concrete aggregates are made of natural sand and gravel. Extensive mining of natural sand and gravel has caused damage to the ecological environment. And natural sand and gravel are non-renewable resources, and the resources are depleted day by day. It is difficult to detect the stress and damage of the existing concrete internal structure, and it is difficult to repair the damage when the concrete is damaged du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B22/04C04B22/06G01V3/02C04B111/94C04B14/02C04B14/42C04B14/38C04B14/00
CPCC04B28/00C04B40/0039C04B2111/94G01V3/02C04B14/06C04B18/16C04B24/22C04B14/386C04B14/024C04B14/42C04B14/00C04B22/04Y02A90/30
Inventor 刘威
Owner 佛山杰致信息科技有限公司