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Anticorrosion concrete and construction method

A concrete, anti-corrosion technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., to achieve the effect of increasing aggregate volume rate, reducing interface transition zone, and reducing cement stone volume rate

Inactive Publication Date: 2008-09-24
FANGYUAN CONSTR GRP REAL ESTATE DEVT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it should be pointed out that rust inhibitors alone cannot solve all problems and must be combined with other measures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]Concrete mass mix ratio: (75% cement + 25% fly ash): water (net water consumption, the same below): SN-II: MS-601: fine aggregate: coarse aggregate = 1: 0.40: 0.01: 0.015 : 3.02: 3.67 Cement: PO42.5 Ordinary Portland Cement (Jiande Xinlishun Building Materials Co., Ltd.) 4.63kg

[0030] Water: tap water 2.47kg+1.10kg

[0031] Coarse aggregate: natural gravel, water absorption rate 3.64%, 9.38kg of aggregates with a gradation of 4.75-9.50mm, 9.54kg of aggregates with a gradation of 9.05-16.00mm, 3.73kg of aggregates with a gradation of 16.00-19.00mm

[0032] Fine aggregate: natural sand, water absorption rate 1.48%, gradation 0.15-0.30mm sand 1.68kg, gradation 0.30-0.60mm sand 2.36kg, gradation 0.60-1.18mm sand 3.24kg, gradation 1.18-2.36 mm sand 4.68kg, gradation 2.36 ~ 4.75mm sand 6.68kg

[0033] Fly ash: Class II fly ash (Guangzhou Hecheng Building Materials Co., Ltd., the same below) 1.54kg

[0034] Water reducing agent: SN-II (Zhejiang Changxing County Refractory ...

Embodiment 2

[0041] Concrete mass ratio: (70% cement + 30% fly ash): water: SN-II: MS-601: fine aggregate: coarse aggregate = 1: 0.50: 0.007: 0.014: 3.09: 3.75;

[0042] Cement: PO42.5 Ordinary Portland Cement 4.11kg

[0043] Water: tap water 2.94kg+1.07kg

[0044] Coarse aggregate: natural gravel, water absorption rate 3.64%, 9.14kg of aggregates with a gradation of 4.75-9.50mm, 9.29kg of aggregates with a gradation of 9.05-16.00mm, 3.63kg of aggregates with a gradation of 16.00-19.00mm

[0045] Fine aggregate: natural sand, water absorption rate 1.48%, gradation 0.15-0.30mm sand 1.62kg, gradation 0.30-0.60mm sand 2.30kg, gradation 0.60-1.18mm sand 3.15kg, gradation 1.18-2.36 mm sand 4.55kg, gradation 2.36 ~ 4.75mm sand 6.51kg

[0046] Fly ash: Class II fly ash 1.76kg

[0047] Water reducer: SN-II 0.041kg

[0048] Rust inhibitor: MS-601 0.082kg

[0049] Process conditions:

[0050] Weigh coarse and fine aggregates and put them into the mixer—add 1.07kg of tap water and stir for 40s—...

Embodiment 3

[0053] Concrete mix ratio: (75% cement + 25% fly ash): water: SN-II: MS-601: fine aggregate: coarse aggregate = 1: 0.45: 0.011: 0.015: 3.05: 3.70;

[0054] Cement: PO42.5 Ordinary Portland Cement 4.52kg

[0055] Water: tap water 2.71kg+1.09kg

[0056] Coarse aggregate: natural gravel, water absorption rate 3.64%, 9.26kg of aggregates with a gradation of 4.75-9.50mm, 9.41kg of aggregates with a gradation of 9.05-16.00mm, 3.68kg of aggregates with a gradation of 16.00-19.00mm

[0057] Fine aggregate: natural sand, water absorption rate 1.48%, gradation 0.15-0.30mm sand 1.65kg, gradation 0.30-0.60mm sand 2.33kg, gradation 0.60-1.18mm sand 3.20kg, gradation 1.18-2.36 mm sand 4.62kg, gradation 2.36 ~ 4.75mm sand 6.60kg

[0058] Fly ash: Class II fly ash 1.51kg

[0059] Water reducer: SN-II 0.068kg

[0060] Rust inhibitor: MS-601 0.090kg

[0061] Process conditions:

[0062] Weigh the coarse and fine aggregates and put them into the mixer—add 1.09kg of tap water and stir for 4...

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Abstract

The present invention provides anti-corrosion concrete, which is characterized in that the weight of the raw materials that are used for producing the anticorrosion concrete are that: (Portland cement + fly ash): water: water-reducing agent: MS-601 rust-resistant agent: fine aggregate: rough aggregate is 1: 0.52 to 0.72: 0.007 to 0.012: 0.014 to 0.016: 2.1 to 3.6: 2.5 to 4.4; the weight ratio between the Portland cement and the fly ash is 1: 0.25 to 0.43; the fine aggregate is the sand with the granularity of 0.15 to 4.75 mm, and the rough aggregate is the crushed stone with the granularity of 4.75 to 19.00 mm. The anticorrosion concrete provided by the present invention has high compactness and good anticorrosion performance, and the service life of the concrete can reach to 50 years.

Description

(1) Technical field [0001] The invention relates to an anti-corrosion concrete and a construction method. (2) Background technology [0002] For marine buildings, sea sand buildings and buildings in saline-alkali areas, chlorides in sea sand or the surrounding environment have a strong corrosion effect on steel bars in concrete, reduce the alkalinity of concrete, destroy the passivation film on the surface of steel bars, and cause steel bar corrosion and expansion, which further lead to cracking and spalling of the concrete cover, and the continuous deterioration of the structural function and mechanical properties. Statistics at home and abroad show that the economic loss caused by corrosion of steel bars is very huge. The economic loss caused by corrosion in the United States reached 70 billion US dollars in 1975, and reached 168 billion US dollars in 1985. Similar corrosion hazards also exist in my country. In 1986, the national According to the census by the Bureau of St...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/08C04B14/06C04B14/02
CPCC04B2111/2038C04B28/04Y02W30/91C04B14/04C04B14/06C04B18/08C04B20/0076C04B2103/302C04B2103/61
Inventor 郑建军程功周欣竹邵林
Owner FANGYUAN CONSTR GRP REAL ESTATE DEVT CO LTD
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