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Graphene concrete composite material resistant to chloride ion penetration and preparation method thereof

A technology of chloride ion penetration and composite materials, which is applied in the field of graphene concrete composite materials and its preparation, can solve problems such as increased maintenance costs and economic losses, and achieve the effects of improving utilization, environmental protection of materials, and improving resistance to chloride ion penetration

Inactive Publication Date: 2019-11-01
陕西燕园众欣石墨烯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In my country's eastern coastal and western saline-alkali areas, concrete damage caused by chloride ion erosion has increased maintenance costs year by year, resulting in huge economic losses

Method used

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  • Graphene concrete composite material resistant to chloride ion penetration and preparation method thereof

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Experimental program
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Embodiment 1

[0024] A kind of anti-chloride ion penetration graphene concrete composite material described in the present embodiment is made of the following components by mass: cement, 13 parts; Fly ash, 2.1 parts; Sand, 19.5 parts; Aggregate, 36.2 parts; A solution containing graphene and a water reducer, 4.2 parts.

[0025] The solution containing graphene and water reducing agent includes the following raw materials: water, 95% ethanol, expanded graphite, polycarboxylate superplasticizer, wherein the volume ratio of water to ethanol is 1:1, and expanded graphite is 1% of the total mass of the solution. 2%, the water reducer is 10% of the total mass of the solution, the preparation process is:

[0026] 1) Measure the water and 95% ethanol of the formula volume, and weigh the water reducer and expanded graphite of the formula quality;

[0027] 2) Mix the raw materials in step 1) together, and mix them evenly by mechanical stirring;

[0028] 3) Put the mixture obtained in step 2) into a...

Embodiment 2

[0034] A kind of anti-chloride ion penetration graphene concrete composite material described in the present embodiment is made of the following components by mass: cement, 13 parts; Fly ash, 2.1 parts; Sand, 19.5 parts; Aggregate, 36.2 parts; A solution containing graphene and a water reducer, 4.2 parts.

[0035] The solution containing graphene and water reducer includes the following raw materials: water, 95% ethanol, expanded graphite, polycarboxylate high-efficiency water reducer, wherein the volume ratio of water to ethanol is 1.5:1, and expanded graphite is 1% of the total mass of the solution. 2%, and the water reducing agent is 10% of the total mass of the solution.

[0036] The preparation process is the same as in Example 1.

Embodiment 3

[0038] A kind of anti-chloride ion penetration graphene concrete composite material described in the present embodiment is made of the following components by mass: cement, 13 parts; Fly ash, 2.1 parts; Sand, 19.5 parts; Aggregate, 36.2 parts; A solution containing graphene and a water reducer, 4.2 parts.

[0039] The solution containing graphene and water reducer includes the following raw materials: water, 95% ethanol, expanded graphite, polycarboxylate high-efficiency water reducer, wherein the volume ratio of water to ethanol is 2:1, and expanded graphite is 2% of the total mass of the solution. 2%, and the water reducing agent is 10% of the total mass of the solution.

[0040] The preparation process is the same as in Example 1.

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Abstract

The invention relates to a graphene concrete composite material resistant to chloride ion penetration and a preparation method thereof. The composite material includes, by mass, 6-20 parts of cement,1-10 parts of fly ash, 12-33 parts of sand, 25-50 parts of aggregate and 3-8 parts of a solution containing graphene and a water reducing agent, with the sum of the components being 100 parts. The solution containing the graphene and the water reducing agent is prepared by adding graphite into a water-ethanol mixture solution containing the water reducing agent, and then performing ultrasonic treatment, wherein the mass percentage of graphene is 0.5-10%. Research proves that the composite material has obviously improved mechanical performance and obviously improved resistance to chloride ion penetration and is of great significance to development of high-performance highly-functional cement concrete materials.

Description

technical field [0001] The invention relates to a concrete composite material, in particular to a graphene concrete composite material resistant to chloride ion penetration and a preparation method thereof. Background technique [0002] Cement concrete is currently the cheapest and most widely used building material in building construction. However, with the continuous construction of high-rise and super high-rise buildings in my country, the construction of sea-crossing, river-crossing bridges, and submarine tunnels, more and more problems have been exposed to traditional concrete materials, such as low tensile strength, poor toughness, and poor permeability. and other defects. If the defects of concrete itself are not fully understood and properly resolved, its application in various fields will be restricted. [0003] Among the environmental factors affecting the durability of concrete structures, the most common and serious cause is corrosion caused by chloride attack....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/02C04B111/20
CPCC01B2204/32C04B14/024C04B28/04C04B2111/20C04B2201/50C01B32/19C04B18/08C04B14/06C04B14/02C04B22/002C04B2103/302
Inventor 田幼华孙彬侯胜华
Owner 陕西燕园众欣石墨烯科技有限公司
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