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Nickel residue and slag based cementing material as well as preparation method and application thereof

A slag and base glue technology, applied in the field of nickel slag-slag-based cementitious materials, can solve the problems of large shrinkage, low toughness, poor stability of cementitious materials, etc., and achieve high flexural strength and compressive strength and low requirements. , the effect of saving energy and raw materials

Active Publication Date: 2017-08-11
重庆地之根再生资源开发有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since water-quenched nickel slag and blast furnace slag need to be treated with an alkali activator, the prepared cementitious material has the problems of poor stability, low toughness, and large shrinkage rate.

Method used

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  • Nickel residue and slag based cementing material as well as preparation method and application thereof
  • Nickel residue and slag based cementing material as well as preparation method and application thereof
  • Nickel residue and slag based cementing material as well as preparation method and application thereof

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preparation example Construction

[0026] The embodiment of the present invention also provides a preparation method of nickel slag-slag-based cementitious material, which comprises the following steps:

[0027] Mix 500-900 parts of water-quenched nickel slag powder and 100-500 parts of blast furnace slag powder to obtain a powder; mix 0.2-0.3 parts of dispersant, 10-15 parts of fiber and 120-160 parts of water to obtain a dispersed fiber solution; Wherein, before preparing the dispersed fiber solution, the fiber is dipped in an aqueous solution of a surfactant, and the surfactant includes at least one of a fluorocarbon surfactant, a sulfonate surfactant, and a fatty acid surfactant .

[0028] Mix and stir the powder and the dispersed fiber solution evenly to obtain a mixed slurry, add an alkali activator to the mixed slurry, and stir for 3-5 minutes.

[0029] The preparation method of nickel slag-slag-based cementitious material provided by the embodiment of the present invention can effectively stimulate the...

Embodiment 1

[0033] This embodiment provides a nickel slag-slag-based cementitious material, the preparation steps of which are as follows:

[0034] S101. Prepare materials: prepare 500g of water-quenched nickel slag powder, 500g of blast furnace slag powder, 350g of water glass, 15g of polypropylene fiber, 0.3g of carboxymethyl cellulose, and 150g of water. Among them, the specific surface area of ​​water-quenched nickel slag powder is 450m 2 / kg; the specific surface area of ​​blast furnace slag powder is 600m 2 / kg, the length of the polypropylene fiber is 15mm, and the diameter is 32μm.

[0035] S102. Preparation of powder: uniformly mix 500g of water-quenched nickel slag powder and 500g of blast furnace slag powder to obtain a powder.

[0036] S103. Prepare a dispersed fiber solution: 0.3 g of carboxymethyl cellulose, 15 g of polypropylene fiber and 150 g of water are uniformly mixed to obtain a dispersed fiber solution.

[0037] S104. Prepare gelling material: mix and stir the pow...

Embodiment 2

[0039] This embodiment provides a nickel slag-slag-based cementitious material, the preparation steps of which are as follows:

[0040] S201. Preparation of materials: Prepare 600g of water-quenched nickel slag powder, 400g of blast furnace slag powder, 300g of water glass, 20g of sodium hydroxide, 10g of fluororubber fiber, 0.2g of carboxymethyl cellulose, 0.1g of sodium pyrophosphate, and 160g of water. Among them, the specific surface area of ​​water-quenched nickel slag powder is 400m 2 / kg; the specific surface area of ​​blast furnace slag powder is 550m2 / kg, the length of the fluorine rubber fiber is 8mm, and the diameter is 30μm.

[0041] S202. Preparation of powder: uniformly mix 600g of water-quenched nickel slag powder and 400g of blast furnace slag powder to obtain powder.

[0042] S203, prepare dispersed fiber solution: 0.2g carboxymethyl cellulose, 0.1g sodium pyrophosphate, 10g fluororubber fiber and 160g water are mixed uniformly to obtain dispersed fiber solu...

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Abstract

The invention provides a nickel residue and slag based cementing material as well as a preparation method and an application thereof and belongs to the field of cementing materials. The nickel residue and slag based cementing material is prepared from raw materials in parts by weight as follows: 500-900 parts of water quenching nickel residue powder, 100-500 parts of blast furnace slag powder, 320-360 parts of an alkali activator, 10-15 parts of fibers, 0.2-0.3 parts of a dispersing agent and 120-160 parts of water. The nickel residue and slag based cementing material has the advantages of high compressive strength, good toughness and high anti-shrinkage performance. The invention further relates to a preparation method of the nickel residue and slag based cementing material. The preparation method has the advantages that a preparation process is simple and requirements for equipment and an operator are low. The invention further discloses an application of the nickel residue and slag based cementing material to preparation of concrete and mortar.

Description

technical field [0001] The invention relates to the field of cementitious materials, and in particular to a nickel slag-slag-based cementitious material, its preparation method and application. Background technique [0002] Cement is one of the materials with the largest amount of application and the widest application range among inorganic cementitious materials. It is widely used in the construction of buildings, roads, dams, airports and other projects, and is an important basic material for national economic construction. The production of cement consumes a lot of resources and energy, and the dust and CO emitted during the production process 2 Such harmful substances will cause serious pollution to the environment. The development and utilization of new green cementitious materials can reduce resource and energy consumption and reduce environmental pollution, which has important practical and long-term significance for the sustainable development of society and economy....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08
CPCC04B28/085C04B2201/50C04B18/141C04B22/08C04B16/0633C04B24/383C04B22/062C04B16/06C04B22/16C04B22/10
Inventor 诸华军徐俊吴其胜潘文彬郭晨璐田亮
Owner 重庆地之根再生资源开发有限责任公司
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