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Pre-blended mortar prepared from high-volume blaster furnace slag and preparation method thereof

A technology for ready-mixed mortar and furnace bottom slag, applied in the field of ready-mixed mortar, can solve the problems of difficulty, unstable product quality, influence on the overall strength of materials, etc., and achieve cost reduction, reduced use, workability and crack resistance. good performance

Inactive Publication Date: 2018-03-20
江苏尚华新型建材有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difficulty in keeping the characteristics of the furnace bottom slag particles stable during the combustion process and the company has no and difficult to take corresponding countermeasures in the production process, the product quality is unstable
In addition, compared with quartz sand, the water absorption rate is very high, and its large amount of admixture will inevitably affect the overall strength and other properties of the material; the third utilization method has been the main utilization method of furnace bottom slag for a long time, which is also the The lowest utilization method of slag fails to give full play to the physical and chemical characteristics of furnace bottom slag
It can be seen that it is difficult to ensure that the furnace bottom slag can be fully and efficiently utilized in the above utilization methods, and more effective utilization methods need to be developed. This is also an important guarantee for the sustainable and high-level development of domestic fly ash comprehensive utilization.

Method used

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  • Pre-blended mortar prepared from high-volume blaster furnace slag and preparation method thereof
  • Pre-blended mortar prepared from high-volume blaster furnace slag and preparation method thereof
  • Pre-blended mortar prepared from high-volume blaster furnace slag and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] A kind of ready-mixed mortar prepared by using a large amount of furnace bottom slag. The mass parts of the ready-mixed mortar include: 100 parts of cement, 10 parts of thickened powder, 60 parts of fly ash, 648 parts of sand, 111 parts of furnace bottom slag, 0.111 parts of water reducing agent.

[0027] Among them, polycarboxylic acid is selected as the water reducing agent.

[0028] Among them, the particle size of the furnace bottom slag is less than 0.63mm.

[0029] Wherein, the bottom slag is pretreated bottom slag, and the pretreated bottom slag is obtained by soaking a surfactant and a coupling agent.

[0030] Wherein, the surfactant is selected from the fatty alcohol sulfate anion.

Embodiment 2

[0032] A kind of ready-mixed mortar prepared by using a large amount of furnace bottom slag. The mass parts of the ready-mixed mortar include: 105 parts of cement, 15 parts of thickened powder, 70 parts of fly ash, 486 parts of sand, 222 parts of furnace bottom slag, 0.222 parts of water reducing agent.

[0033] Among them, polycarboxylic acid is selected as the water reducing agent.

[0034] Among them, the particle size of the furnace bottom slag is less than 0.63mm.

[0035] Wherein, the bottom slag is pretreated bottom slag, and the pretreated bottom slag is obtained by soaking a surfactant and a coupling agent.

[0036] Wherein, the surfactant is selected from the fatty alcohol sulfate anion.

Embodiment 3

[0038] A kind of ready-mixed mortar prepared by using a large amount of furnace bottom slag. The mass parts of the ready-mixed mortar include: 110 parts of cement, 20 parts of thickened powder, 80 parts of fly ash, 324 parts of sand, 330 parts of furnace bottom slag, 0.111 parts of water reducing agent.

[0039] Among them, polycarboxylic acid is selected as the water reducing agent.

[0040] Among them, the particle size of the furnace bottom slag is less than 0.63mm.

[0041] Wherein, the furnace bottom slag is pretreated furnace bottom slag, and the pretreated furnace bottom slag is obtained by soaking a surfactant and a coupling agent.

[0042] Wherein, the surfactant is selected from the fatty alcohol sulfate anion.

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Abstract

The invention belongs to the technical field of pre-blended mortar and in particular discloses pre-blended mortar prepared from high-volume blaster furnace slag and a preparation method thereof. The pre-blended mortar comprises the following components in parts by mass: 100-110 parts of cement, 10-20 parts of thickening powder, 60-80 parts of coal ash, 324-648 parts of sand, 111-330 parts of blaster furnace slag and 0.111-0.33 part of a water reduction agent. As the blaster furnace flag generated in coal-fired power plants is adopted as aggregate for partially replacing sand in the pre-blendedmortar, on one hand, a novel way is provided for resource utilization of the blaster furnace flag, natural resources used are reduced, and comprehensive utilization of resources is facilitated, and on the other hand, due to use of the blaster furnace flag, the cost of the mortar can be reduced; and meanwhile, as light aggregate, the blaster furnace flag is capable of improving properties such asheat preservation of the mortar when blended with the mortar greatly, and a raw material is provided for development of inorganic light heat-preservation mortar.

Description

technical field [0001] The invention belongs to the technical field of ready-mixed mortar, in particular to a ready-mixed mortar prepared by using a large amount of furnace bottom slag and a preparation method thereof. Background technique [0002] Bottom slag and fly ash are the main solid coal-fired waste, among which, bottom slag is the ash with a relatively coarse particle size discharged from the bottom of the boiler after coal combustion, generally accounting for about 20% of the total coal-fired waste , the daily output of major power plants and thermal power plants is quite large. During the "Twelfth Five-Year Plan" period, the output of furnace bottom slag exceeded 4 million tons. Due to the differences in emission methods and morphology, the resource utilization of furnace bottom slag has always lagged behind the comprehensive utilization of fly ash. [0003] At present, there are three main ways to use furnace bottom slag as a resource: one is as a cement mixtur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/10
CPCC04B18/10C04B28/00C04B2201/50C04B2103/44C04B18/08C04B14/06C04B2103/302Y02W30/91
Inventor 仇天青周玉宝张春春高宝检刘俊巨万亮戴年臻
Owner 江苏尚华新型建材有限公司
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