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Microbial erosion resistant protective concrete and preparation method thereof

A technology of anti-microbial and concrete, which is applied in the direction of clay preparation equipment, chemical instruments and methods, cement mixing equipment, etc., can solve the problems of poor compatibility of concrete and inconsistent service life of concrete structures, etc., achieve strong bonding strength, improve microbial erosion, The effect of improving mechanical properties

Inactive Publication Date: 2020-10-27
CHINA STATE CONSTR READY MIXED CONCRETE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is quick and convenient to improve the antibacterial performance of concrete by adding antibacterial components, it is generally not compatible with concrete, and the service life of antibacterial materials and concrete structures is not consistent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An embodiment of the present invention provides a protective concrete resistant to microbial erosion, which is composed of the following raw materials: 260 parts of cement, 120 parts of fly ash, 30 parts of silica fume, 60 parts of mineral powder, 960 parts of gravel, 735 parts of yellow sand, hydrated 10 parts of oxides, 10 parts of additives, 40 parts of nano silicon dioxide, 3 parts of hydrophobic compound pore plugs, and 150 parts of water.

[0031] In a specific embodiment, the cement is Washi P·O4 2.5 ordinary Portland cement.

[0032] In a specific embodiment, the fly ash is Huadian Class I fly ash with a loss on ignition of 1%.

[0033] In a specific embodiment, SiO in silica fume 2 The content is 96%.

[0034] In a specific embodiment, the ore powder is Xinyuan S95 ore powder.

[0035] In a specific embodiment, the crushed stone is Youkun 5-16mm continuous graded crushed stone, with a crushing value of 9.0%, a mud content of 1.2%, and a needle-like particle ...

Embodiment 2

[0046] The embodiment of the present invention provides a protective concrete resistant to microbial erosion, which is composed of the following raw materials: 300 parts of cement, 80 parts of fly ash, 20 parts of silica fume, 40 parts of mineral powder, 945 parts of crushed stone, 750 parts of yellow sand, hydrated 8 parts of oxides, 8 parts of additives, 52 parts of nano silicon dioxide, 2 parts of hydrophobic compound pore plugs, and 140 parts of water.

[0047] In a specific embodiment, the cement is Washi P·O4 2.5 ordinary Portland cement.

[0048] In a specific embodiment, the fly ash is Huadian Class I fly ash with a loss on ignition of 1%.

[0049] In a specific embodiment, SiO in silica fume 2 The content is 96%.

[0050] In a specific embodiment, the ore powder is Xinyuan S95 ore powder.

[0051] In a specific embodiment, the crushed stone is Youkun 5-16mm continuous graded crushed stone, with a crushing value of 9.0%, a mud content of 1.2%, and a needle-like part...

Embodiment 3

[0062] An embodiment of the present invention provides a protective concrete resistant to microbial erosion, which is composed of the following raw materials: 280 parts of cement, 100 parts of fly ash, 25 parts of silica fume, 50 parts of mineral powder, 9450 parts of crushed stone, 720 parts of yellow sand, hydrated 12 parts of oxides, 12 parts of additives, 64 parts of nano silicon dioxide, 4 parts of hydrophobic compound pore plugs, and 140 parts of water.

[0063] In a specific embodiment, the cement is Washi P·O4 2.5 ordinary Portland cement.

[0064] In a specific embodiment, the fly ash is Huadian Class I fly ash with a loss on ignition of 1%.

[0065] In a specific embodiment, SiO in silica fume 2 The content is 96%.

[0066] In a specific embodiment, the ore powder is Xinyuan S95 ore powder.

[0067] In a specific embodiment, the crushed stone is Youkun 5-16mm continuous graded crushed stone, with a crushing value of 9.0%, a mud content of 1.2%, and a needle-like p...

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Abstract

The invention discloses a microbial erosion resistant protective concrete, which comprises the following components by weight: 260-300 parts of cement, 80-120 parts of fly ash, 20-30 parts of silica fume, 40-60 parts of mineral powder, 930-960 parts of gravels, 720-750 parts of yellow sand, 8-12 parts of hydrated oxide, 8-12 parts of an additive, 40-64 parts of nano silicon dioxide, 2-4 parts of ahydrophobic poreblocking ingredient and 130-150 parts of water. The prepared concrete has excellent mechanical properties and volume stability, can effectively resist microbial erosion for a long time under the condition that no antibacterial component is added, and is particularly suitable for urban drainage pipelines, sewage treatment systems and the like.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a protective concrete resistant to microbial erosion and a preparation method thereof. Background technique [0002] Urban drainage pipes and sewage treatment systems are the important infrastructure of a city, the blood of the city, and play a very important role in the construction of the city, the development of production, the improvement of people's living standards and the improvement of the urban ecological environment. In urban environmental engineering, the structures that transport and treat sewage, such as sewage pipes, primary sedimentation tanks, aeration tanks, oxidation ditch, and secondary sedimentation tanks, are all reinforced concrete structures. The above-mentioned processing storage tanks are buried, semi-buried, closed, semi-closed or open in the open air, and are subject to various corrosion effects such as acid and alkali, atmosphere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B22/06C04B14/06B28C5/00C04B111/20
CPCB28C5/003C04B14/06C04B22/06C04B28/04C04B2111/2092C04B18/08C04B18/146C04B18/141C04B14/02C04B14/062C04B2103/65
Inventor 代飞王军赵日煦高飞黄汉洋刘开杨盛恒邓宵贺中泽
Owner CHINA STATE CONSTR READY MIXED CONCRETE CO LTD
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