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A kind of solid waste base dry mix mortar and preparation method thereof

A dry-mixed mortar and foundation technology, applied in the field of building materials, can solve the problems of low construction cost, high resistance to shrinkage and cracking, and environmental pollution caused by solid waste accumulation

Active Publication Date: 2022-06-03
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solid waste-based dry-mixed mortar provided by the invention has low construction cost and high shrinkage and cracking resistance, and at the same time solves the problem of solid waste accumulation polluting the environment and realizes the effective utilization of solid waste

Method used

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  • A kind of solid waste base dry mix mortar and preparation method thereof
  • A kind of solid waste base dry mix mortar and preparation method thereof
  • A kind of solid waste base dry mix mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A solid waste-based dry-mix mortar is made from the following raw materials: 473.7Kg of coal gangue, 284.2Kg of circulating fluidized bed fly ash, 94.7Kg of calcium carbide slag, 47.4Kg of desulfurized gypsum, 100Kg of cement, 3Kg of polypropylene fiber, 3Kg of hydroxyl Propyl methyl cellulose 1.5Kg, dispersible latex powder 1.5Kg, thickener 1kg. Among them, the particle size of coal gangue is 0.2 to 1 mm, and the circulating fluidized bed fly ash D V (50) is 13.73 μm, D of carbide slag V (50) is 34.7 μm, desulfurized gypsum D V (50) is 23.4 μm, cement is 42.5 cement, and the viscosity of hydroxypropyl methylcellulose and dispersible latex powder is 100000mpa﹒ s.

[0038] All the solid components of the above quality are put into the stirring tank of the stirring mixer for stirring, the stirring and mixing time is 90 minutes, and the stirring and mixing speed is 100 rev / min. After the stirring is completed, the mixed powder is taken out and bagged to obtain a dry-mi...

Embodiment 2

[0040] A solid waste-based dry-mixed mortar is made from the following raw materials: 450.0Kg of coal gangue, 300Kg of circulating fluidized bed fly ash, 100Kg of calcium carbide slag, 50Kg of desulfurized gypsum, 120Kg of cement, 3Kg of polypropylene fibers, hydroxypropyl methyl Base cellulose 1.5Kg, dispersible latex powder 1.5Kg, thickener 1kg. Among them, the particle size of coal gangue is 0.2 to 1 mm, and the circulating fluidized bed fly ash D V (50) is 13.73 μm, D of carbide slag V (50) is 34.7 μm, desulfurized gypsum D V (50) is 23.4 μm, cement is 42.5 cement, and the viscosity of hydroxypropyl methylcellulose and dispersible latex powder is 100000mpa﹒ s.

[0041] All the solid components of the above quality are put into the stirring tank of the stirring mixer for stirring, the stirring and mixing time is 80 minutes, and the stirring and mixing speed is 120 rev / min. After the stirring is completed, the mixed powder is taken out and bagged to obtain a dry-mixed mo...

Embodiment 3

[0043] A solid waste-based dry-mixed mortar is made from the following raw materials: 480.0Kg of coal gangue, 290.0Kg of circulating fluidized bed fly ash, 90.0Kg of calcium carbide slag, 50.0Kg of desulfurized gypsum, 150.0Kg of cement, and 3.0Kg of polypropylene fiber , hydroxypropyl methylcellulose 1.5Kg, dispersible latex powder 1.5Kg, thickener 1kg. Among them, the particle size of coal gangue is 0.2 to 1 mm, and the circulating fluidized bed fly ash D V (50) is 13.73 μm, D of carbide slag V (50) is 34.7 μm, desulfurized gypsum D V (50) is 23.4 μm, cement is 42.5 cement, and the viscosity of hydroxypropyl methylcellulose and dispersible latex powder is 100000mpa﹒ s.

[0044] All the solid components of the above quality are put into the stirring tank of the stirring mixer for stirring, the stirring and mixing time is 60 minutes, and the stirring and mixing speed is 140 rev / min. After the stirring is completed, the mixed powder is taken out and bagged to obtain a dry-m...

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Abstract

The invention relates to the technical field of building materials, in particular to a solid waste-based dry-mixed mortar and a preparation method thereof. The main raw material of the dry-mixed mortar provided by the present invention is industrial solid waste, which reduces the amount of cement, effectively reduces the cost of raw materials, relieves the pressure of solid waste treatment, realizes ecological environmental protection and comprehensive utilization of solid waste resources, and utilizes fly ash The synergistic reaction between calcium carbide slag and desulfurization gypsum realizes fast drying and shortens the construction period. At the same time, the polypropylene fiber is added to the dry-mixed mortar provided by the invention, which can effectively avoid the shrinkage phenomenon of the mortar due to hydration reaction, and improve the crack resistance of the mortar. The present invention also provides a preparation method for solid waste-based dry-mixed mortar described in the above scheme. The dry-mixed mortar provided by the invention has a simple preparation method and is suitable for large-scale stable production.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a solid waste-based dry-mixed mortar and a preparation method thereof. Background technique [0002] With the acceleration of urbanization in my country and the rapid development of the construction engineering industry, the area of ​​newly built houses continues to grow every year, and the construction engineering industry has stricter and stricter requirements on construction quality. Traditional construction mortar has been unable to meet the needs of the market. In order to cooperate with the development of the construction industry, the state encourages the development of ready-mixed mortar. According to the production method of mortar, ready-mixed mortar can usually be divided into two categories: wet-mixed mortar and dry-mixed mortar. Among them, the mortar mixture mixed with water is called wet mixed mortar, and the mortar mixture formed by mixing dry material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B18/12C04B18/08C04B18/04C04B16/06
CPCC04B28/144C04B18/12C04B18/08C04B18/0427C04B16/0633C04B2111/00017C04B2201/50C04B7/00C04B24/383C04B2103/0057C04B2103/44Y02W30/91
Inventor 廖洪强段徳丹王佳娜程芳琴
Owner SHANXI UNIV
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