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Nickel iron slag based polymer binding material and preparation method thereof

A technology for polymer glue and ferronickel slag, applied in the field of cementitious materials, can solve the problems of not fully exploring the utilization value of ferronickel slag, insufficient research on chemical stability, etc., and achieves wide application range, reasonable particle size gradation, Highly active effect

Pending Publication Date: 2018-06-05
JIANGSU PROVINCE METALLURGICAL DESIGN INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Analyzing the reasons, it is found that the research on the particle size, hydration performance and chemical stability of ferronickel slag is not enough, and the potential utilization value of ferronickel slag has not been fully explored.
[0004] Therefore, the existing means of utilizing ferronickel slag are still to be further studied

Method used

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  • Nickel iron slag based polymer binding material and preparation method thereof

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Embodiment 1

[0050] Select Jinchuan nickel-iron slag, put the nickel-iron slag accounting for 70% of the total cementitious material into the pulverizer for 65 minutes of grinding, open the silo and put 8% of the total cementitious material in the desulfurization gypsum After mixing and grinding in the mill for 18 minutes, add 2% slag portland cement and 20% fly ash into the mill at the same time to grind for 9 minutes to obtain ferronickel slag base polymerization gelatinous material.

[0051] The permeable brick prepared by using the ferronickel slag-based polymer cementitious material prepared by the above-mentioned method together with the aggregate is tested and found that the properties of the obtained permeable brick meet the national standards and industry standards. The average compressive strength of the permeable brick is 33.7MPa, the length of the grinding pit is 17mm, and the water retention is 0.9cm 2 , water permeability coefficient (15°C) ≥ 1.0×10 -2 cm / s. The compressiv...

Embodiment 2

[0053] Choose Jinchuan nickel-iron slag, put the nickel-iron slag which accounts for 65% of the total cementitious material mass percentage into a 5kg test small mill for 55min grinding, open the silo to desulfurize gypsum with a mass percentage of 12% of the total cementitious material Put it into the small test mill and mix and grind it for 20 minutes, then add PC42.5 cement and 19% grade II fly ash which account for 4% of the total cementitious material mass percentage into the test small mill at the same time, and then discharge it for 4 minutes to obtain nickel Iron slag based polymer cementitious material.

[0054] The foam insulation board prepared by using the ferronickel slag base polymer gelling material prepared by the above method together with foaming agent and aggregate, after testing, the performance of the foam insulation board meets the national standards and industry standards, and the thermal conductivity is 0.05V / m·k, dry density is 300kg / m 3 , and has AI-...

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Abstract

The invention discloses a nickel iron slag based polymer binding material and a preparation method thereof. The nickel iron slag based polymer binding material is prepared from the following components in parts by weight: 55-75 parts of nickel iron slag, 3-20 parts of flue gas desulfurization gypsum, 0.5-8 parts of slag Portland cement and 10-30 parts of pulverized fuel ash. The nickel iron slag based polymer binding material has high nickel iron slag dosage, enables nickel iron slag waste to be sufficiently utilized, and has good material performance and wide application range.

Description

technical field [0001] The invention relates to the field of cementitious materials, in particular, the invention relates to a ferronickel slag-based polymer cementitious material and a preparation method thereof. Background technique [0002] As the scale of ferronickel smelting by pyrometallurgy in laterite mines expands year by year, the discharge of industrial waste residues from ferronickel smelting also increases year by year. In 2017, the total amount of ferronickel slag is expected to be close to 100 million tons, exceeding the total discharge of metallurgical slag such as copper slag and manganese slag, accounting for about one-fifth of the total discharge of metallurgical slag. Compared with other metallurgical slags, ferronickel slag has a larger discharge volume and a lower recovery rate, which has become a difficult problem for industrial waste slag treatment. [0003] At the same time, the development direction of my country's building materials industry is to...

Claims

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Application Information

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IPC IPC(8): C04B12/00
CPCC04B12/005
Inventor 李亚奇苏双青边妙莲陈世朝孙辉马东阳吴道洪
Owner JIANGSU PROVINCE METALLURGICAL DESIGN INST
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