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Graphene oxide concrete

A graphene and concrete technology, applied in the field of concrete, can solve the problems of cement matrix strength loss, poor dispersion of graphene oxide, etc., and achieve the effect of reducing pores, uniform and dense gel, and dense structure

Active Publication Date: 2016-05-04
SICHUAN CARBON WORLD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a graphene oxide concrete to solve the problem of poor dispersion of graphene oxide in cement and concrete inorganic materials in the prior art, resulting in technical defects of strength loss caused by cement matrix defects

Method used

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  • Graphene oxide concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Graphene reinforcement for graphene oxide concrete:

[0030] (1) Take 10% water-reducing component, 12% slump-preserving component, 3.2% sodium gluconate, 8% graphene oxide, 0.4% stabilizer polyvinylpyrrolidone, and 66% deionized water;

[0031] Wherein, the water-reducing component includes: 30% methyl alkenyl polyoxyethylene ether, 3% acrylic acid, 67% deionized water by weight percentage;

[0032] Wherein, the slump-preserving component includes by weight percentage: 25% allyl polyoxyethylene ether, 10% maleic anhydride, 1% acrylic acid, 5% ethylene glycol diacrylate, 59% deionized water;

[0033] (2) Add the water-reducing component and the slump-preserving component into deionized water, stir well and set aside;

[0034] (3) Add sodium gluconate, stir and mix, then add sodium hydroxide to adjust the pH value to 7.0, then add graphene oxide that has been ultrasonically treated at 20KHz for 3 hours, stir and mix, and finally slowly add stabilizer polyvinylpyrrolidon...

Embodiment 2

[0036] Graphene reinforcement for graphene oxide concrete:

[0037] (1) Take 14% water-reducing component, 18% slump-preserving component, 3.6% sodium gluconate, 12% graphene oxide, 0.6% stabilizer polyvinylpyrrolidone, and 51% deionized water;

[0038] Wherein, the water-reducing component includes: 35% methyl alkenyl polyoxyethylene ether, 4% acrylic acid, 61% deionized water by weight percentage;

[0039] Wherein, the slump-preserving component includes by weight percentage: 30% allyl polyoxyethylene ether, 15% maleic anhydride, 3% acrylic acid, 8% ethylene glycol diacrylate, 44% deionized water;

[0040] (2) Add the water-reducing component and the slump-preserving component into deionized water, stir well and set aside;

[0041] (3) Add sodium gluconate, stir and mix, then add sodium hydroxide to adjust the pH value to 7.0, then add graphene oxide that has been ultrasonically treated at 20KHz for 3 hours, stir and mix, and finally slowly add stabilizer polyvinylpyrrolido...

Embodiment 3

[0043] Graphene reinforcement for graphene oxide concrete:

[0044] (1) Take 12% water-reducing component, 16% slump-preserving component, 3.4% sodium gluconate, 10% graphene oxide, 0.5% stabilizer polyvinylpyrrolidone, and 58.1% deionized water;

[0045] Wherein, the water-reducing component includes by weight percentage: 33% methyl vinyl polyoxyethylene ether, 3.5% acrylic acid, 63.5% deionized water;

[0046] Among them, the slump-preserving component includes: 27% allyl polyoxyethylene ether, 12% maleic anhydride, 2% acrylic acid, 6% ethylene glycol diacrylate, 53% deionized water in terms of weight percentage;

[0047] (2) Add the water-reducing component and the slump-preserving component into deionized water, stir well and set aside;

[0048](3) Add sodium gluconate, stir and mix, then add sodium hydroxide to adjust the pH value to 7.0, then add graphene oxide that has been ultrasonically treated at 20KHz for 3 hours, stir and mix, and finally slowly add stabilizer pol...

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Abstract

The invention relates to graphene oxide concrete, which is prepared from the following components: 115 to 415 parts of cement, 30 to 50 parts of coal ash, 50 to 90 parts of mineral powder, 940 to 1070 parts of stone, 720 to 1040 parts of sand, 155 to 190 parts of water and 4.15 to 11.70 parts of graphene fortifier, wherein the graphene fortifier is prepared from 10 to 14 percent of water reducing component, 12 to 18 percent of slump retaining component, 3.2 to 3.6 percent of sodium gluconate, 8 to 12 percent of graphene oxide, 0.4 to 0.6 percent of stabilizer polyvinylpyrrolidone and 51 to 66 percent of deionized water. According to the graphene oxide concrete disclosed by the invention, a technical defect that strength loss is caused by a cement matrix flaw due to the fact that dispersity of graphene oxide concrete is low in the prior art is solved; a microstructure of a cement hydration product can be effectively regulated and controlled, therefore strength, permeability resistance and durability of the concrete are increased, and the strength of the graphene oxide concrete is increased by 30 percent to 46 percent in comparison with concrete with an equal ratio.

Description

technical field [0001] The invention relates to concrete, in particular to graphene oxide concrete. Background technique [0002] With the rapid development of the economy, my country's infrastructure construction is in full swing. Large-scale construction is being carried out in major engineering projects such as roads, bridges, railways, nuclear power, hydropower, ports, and oceans. The scale is unprecedented. The concrete structure is characterized by its good overall quality. Performance, ease of construction and relatively low cost have been widely used in the field of infrastructure construction. About 2 billion cubic meters of concrete are used in construction projects in my country every year, and the output of cement for construction accounts for 70% of the world's total output. However, the main defect of concrete is Brittleness, cracks and penetration, and the resulting easy cracks are the main reasons for its performance degradation and shortened service life. [...

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B14/02C04B14/04C04B14/06C04B18/08C04B18/12C04B24/04C04B24/26C04B24/32C04B103/30
CPCC04B28/02C04B2103/302C04B2103/308C04B18/08C04B18/12C04B14/04C04B14/06C04B14/024C04B24/32C04B24/04C04B24/045C04B24/26Y02W30/91
Inventor 丁立张仲才
Owner SICHUAN CARBON WORLD TECH CO LTD
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