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A self-leveling mortar prepared from coal-to-oil gasifier slag

A self-leveling mortar and slag technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., to achieve the effects of reducing environmental pollution, reducing consumption, and saving costs

Active Publication Date: 2020-08-07
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the limitations of coal quality requirements, industrial implementation, overall efficiency, products, and process technology, the indirect liquefaction of coal can generally produce high-quality oil products conveniently

Method used

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  • A self-leveling mortar prepared from coal-to-oil gasifier slag
  • A self-leveling mortar prepared from coal-to-oil gasifier slag
  • A self-leveling mortar prepared from coal-to-oil gasifier slag

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with specific embodiments.

[0026] The basic properties of the coal-based gasification furnace slag used in the present invention and the standards of construction sand are shown in Table 1.

[0027] Table 1 Basic properties of coal-based gasification furnace slag and standards for construction sand

[0028]

[0029]

[0030] It can be seen from Table 1 that the coal-based gasification furnace slag meets the standards for construction sand. Therefore, the coal-based gasification furnace slag can be used to prepare self-leveling mortar instead of sand.

[0031] The self-leveling mortar of the present invention is composed of the following mass fractions of materials: 35%-50% of slag after surface treatment, 20%-40% of Portland cement, 5%-15% of aluminate cement, 3%~6% of gypsum , Lime 3%~6%, silica fume 2%~4%, water retention agent 0.1%~1%, the water retention agent can be carboxymethyl cellulose, so...

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Abstract

The invention provides self-leveling mortar prepared by using slag of a gasifier for coal liquefaction. The self-leveling mortar comprises the following materials of: in percent by mass, 35-50% of theslag obtained after surface treatment is conducted, 20-40% of Portland cement, 5-15% of aluminate cement, 3-6% of gypsum, 3-6% of lime, 2-4% of silica fume and 0.1-1% of a water retaining agent. According to the self-leveling mortar, the slag of the gasifier for coal liquefaction is utilized effectively, so that the performance of the self-leveling mortar is ensured, and meanwhile resources are utilized comprehensively; in addition, the cost of a water reducing agent is reduced, and extremely high benefits of economy and environment protection are achieved.

Description

Technical field [0001] The invention relates to a self-leveling mortar, in particular to a self-leveling mortar prepared by using coal-based gasification furnace slag, and belongs to the field of building materials. Background technique [0002] China has abundant coal resources, but the total amount of oil and gas resources is small. The rapid economic development has led to a sharp increase in the demand for energy, and the frequent occurrence of oil crises worldwide has led to coal-based synthetic oil (coal-to-liquid) as a modern coal chemical industry. Part of the industry to solve the problem of oil shortage is getting more and more attention. In recent years, China’s coal-to-liquid industry has made breakthroughs in key industrial technology research, independent research and development of major equipment, product variety development and expansion of production scale, and has independent coal-based technology. With intellectual property rights, the annual production capac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B20/02C04B18/06
CPCC04B18/065C04B20/023C04B28/06C04B2201/10C04B2201/50C04B7/02C04B22/143C04B22/064C04B18/146C04B24/383Y02W30/91
Inventor 张海波祝瑜温海锋张高杰张庆勋管学茂
Owner HENAN POLYTECHNIC UNIV