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High durability concrete and preparation method thereof

A technology of durable concrete and machine-made sand, applied in the field of concrete, can solve the problems of affecting durability and poor durability, and achieve the effect of accelerating heat conduction, improving carbonization resistance, and enhancing toughening effect.

Active Publication Date: 2022-07-26
柳州市大星混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, concrete is easily affected by the environment, resulting in poor durability. Especially, concrete in environments such as seaside, Yangtze River, and Yellow River wetlands is more susceptible to corrosion by substances such as acids and alkalis in the external environment, which affects its durability.

Method used

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Effect test

Embodiment 1

[0021] A high-durability concrete, the high-durability concrete comprises the following raw materials in parts by weight: 220 parts of cement, 50 parts of mineral powder, 50 parts of limestone grindstone powder, 940 parts of machine-made sand, 970 parts of limestone crushed stone, 9.5 parts of polycarboxylate Acid water reducing agent, 165 parts of water, 1 part of magnesium borate-carbon nanotube composite material, 0.3 part of diamond micropowder, 0.4 part of fiber material.

[0022] Wherein, the preparation method of the magnesium borate-carbon nanotube composite material includes: dissolving borax in water to prepare a borax solution with a mass fraction of 12%, dissolving carbon nanotubes and a dispersant in water to prepare a carbon nanotube with a mass fraction of 7% Nanotube solution, dissolve magnesium nitrate in water to prepare a magnesium nitrate solution with a mass fraction of 12%, add the carbon nanotube solution dropwise to the borax solution in a volume ratio o...

Embodiment 2

[0030] A high-durability concrete, the high-durability concrete comprises the following raw materials in parts by weight: 210 parts of cement, 60 parts of mineral powder, 50 parts of limestone grindstone powder, 950 parts of machine-made sand, 950 parts of limestone crushed stone, 10 parts of polycarboxylate Acid water reducing agent, 165 parts of water, 2 parts of magnesium borate-carbon nanotube composite material, 0.5 part of diamond micropowder, 0.7 part of fiber material.

[0031] Wherein, the preparation method of the magnesium borate-carbon nanotube composite material includes: dissolving borax in water to prepare a borax solution with a mass fraction of 14%, dissolving carbon nanotubes and a dispersant in water to prepare a carbon nanotube with a mass fraction of 11% Nanotube solution, dissolve magnesium nitrate in water to prepare a magnesium nitrate solution with a mass fraction of 14%, add the carbon nanotube solution dropwise to the borax solution in a volume ratio ...

Embodiment 3

[0039] A high-durability concrete, the high-durability concrete comprises the following raw materials in parts by weight: 200 parts of cement, 70 parts of mineral powder, 50 parts of limestone grindstone powder, 960 parts of machine-made sand, 950 parts of limestone crushed stone, 8.5 parts of polycarboxylate Acid water reducer, 165 parts of water, 1.5 parts of magnesium borate-carbon nanotube composite material, 0.4 part of diamond micropowder, 0.6 part of fiber material.

[0040] Wherein, the preparation method of the magnesium borate-carbon nanotube composite material includes: dissolving borax in water to prepare a borax solution with a mass fraction of 13%, dissolving carbon nanotubes and a dispersant in water to prepare a carbon nanotube with a mass fraction of 9% Nanotube solution, dissolve magnesium nitrate in water to prepare a magnesium nitrate solution with a mass fraction of 13%, add the carbon nanotube solution dropwise to the borax solution in a volume ratio of 1:...

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Abstract

The invention discloses a high-durability concrete. The high-durability concrete comprises the following raw materials in parts by weight: 200-260 parts of cement, 50-80 parts of mineral powder, 40-50 parts of limestone grinding fine powder, 900-970 parts of mechanism Sand, 900-980 parts of limestone crushed stone, 7-10 parts of polycarboxylate superplasticizer, 160-170 parts of water, 1-2 parts of magnesium borate-carbon nanotube composite material, 0.3-0.5 parts of diamond micropowder, 0.4-0.7 parts of fiber material. The invention can effectively improve the anti-chloride ion erosion performance and anti-carbonation performance of concrete.

Description

technical field [0001] The present invention relates to the field of concrete. More specifically, the present invention relates to a high-durability concrete and a method of making the same. Background technique [0002] With the continuous development of concrete technology, concrete has been used in more and more construction fields, such as bridge engineering, highway engineering, hydraulic engineering and other engineering fields. However, concrete is easily affected by the environment, resulting in poor durability, especially in environments such as the seaside, the Yangtze River, and the Yellow River wetlands. SUMMARY OF THE INVENTION [0003] An object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages which will be explained later. [0004] Another object of the present invention is to provide a high-durability concrete and a preparation method thereof, which can effectively improve the anti-chloride ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B14/36C04B14/28C04B18/14C04B14/48C04B16/06C04B111/22C04B111/20
CPCC04B28/00C04B40/0046C04B14/022C04B14/28C04B18/141C04B14/48C04B16/0633C04B2111/22C04B2111/20C04B14/06C04B2103/302C04B14/026C04B14/36Y02W30/91
Inventor 莫祝鲜樊宏飞甘军孙文献
Owner 柳州市大星混凝土有限公司
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