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Special aid for coal gangue machine-made sand mortar and preparation method thereof

A technology for machine-made sand and coal gangue, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of high water absorption, unsatisfactory water retention, and easy hollowing and cracking of mortar and plastic stabilization time.

Active Publication Date: 2021-05-28
山东江泰建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problems that the high water absorption rate of coal gangue machine-made sand leads to serious stratification of the prepared mortar, the water retention rate does not meet the requirements, and it is easy to hollow and crack after being installed on the wall, and the mortar has insufficient stabilization time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) In parts by weight (unit: kilogram), weigh 0.15 parts of boric acid, 0.1 part of methyl acrylate (MA), 3 parts of polyvinyl alcohol (PVA), and 50 parts of distilled water, and add them together to a mixture equipped with a thermometer and stir In the four-hole bottle of the device, temperature bath and dropping device, stir and dissolve at 85°C;

[0024] (2) In parts by weight (unit: kilogram), take by weighing 5 parts of 10% sodium hydroxide solution, add dropwise in the solution that step (1) makes, keep temperature at 85 ℃ of constant temperature and constantly Stir at a constant speed, react for 2 hours, let stand for 1 hour after the dropwise addition is completed, and obtain the anti-sedimentation thixotropic agent solution;

[0025] (3) In parts by weight (unit: kilogram), take by weighing 80 parts of micro-silicon powder, that is, nano-micro-level ultrafine quartz powder, as a carrier and evenly place it in a fluidized bed, and weigh the anti-corrosion powde...

Embodiment 2

[0029](1) In parts by weight (unit: kilogram), weigh 0.15 parts of boric acid, 0.1 part of methyl acrylate (MA), 3 parts of polyvinyl alcohol (PVA), and 50 parts of distilled water, and add them together to a mixture equipped with a thermometer and stir In the four-hole bottle of the device, temperature bath and dropping device, stir and dissolve at 85°C;

[0030] (2) In parts by weight (unit: kilogram), take by weighing 5 parts of 10% sodium hydroxide solution, add dropwise in the solution that step (1) makes, keep temperature at 85 ℃ of constant temperature and constantly Stir at a constant speed, react for 2 hours, let stand for 1 hour after the dropwise addition is completed, and obtain the anti-sedimentation thixotropic agent solution;

[0031] (3) In parts by weight (unit: kilogram), take by weighing 80 parts of micro-silicon powder, that is, nano-micro-level ultrafine quartz powder, as a carrier and evenly place it in a fluidized bed, and weigh the anti-corrosion powder...

Embodiment 3

[0035] (1) In parts by weight (unit: kilogram), weigh 0.15 parts of boric acid, 0.1 part of methyl acrylate (MA), 3 parts of polyvinyl alcohol (PVA), and 50 parts of distilled water, and add them together to a mixture equipped with a thermometer and stir In the four-hole bottle of the device, temperature bath and dropping device, stir and dissolve at 85°C;

[0036] (2) In parts by weight (unit: kilogram), take by weighing 5 parts of 10% sodium hydroxide solution, add dropwise in the solution that step (1) makes, keep temperature at 85 ℃ of constant temperature and constantly Stir at a constant speed, react for 2 hours, let stand for 1 hour after the dropwise addition is completed, and obtain the anti-sedimentation thixotropic agent solution;

[0037] (3) In parts by weight (unit: kilogram), take by weighing 80 parts of micro-silicon powder, that is, nano-micro-level ultrafine quartz powder, as a carrier and evenly place it in a fluidized bed, and weigh the anti-corrosion powde...

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PUM

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Abstract

The invention discloses a special aid for coal gangue machine-made sand mortar. The special aid for coal gangue machine-made sand mortar comprises the following components in parts by weight: 55-65 parts of an anti-settling thixotropic agent composite material, 4-7 parts of a bleeding inhibitor, 5-10 parts of a thickening agent hydroxypropyl methyl cellulose (HPMC) with the viscosity of 100,000, 3-7 parts of a thickening agent hydroxypropyl methyl cellulose (HPMC) with the viscosity of 75,000, 4-7 parts of a thickening agent hydroxypropyl methyl cellulose (HPMC) with the viscosity of 40,000, 8-15 parts of an air entraining agent and 8-11 parts of a high-efficiency water reducing agent. The experiments prove that the special aid effectively solves the problem of high water absorption rate of the coal gangue machine-made sand, and solves the problems that the layering degree of the prepared mortar is serious, the water retention rate does not meet the requirement and hollowing and cracking are easily caused after the mortar is applied to a wall due to the high water absorption rate of the coal gangue machine-made sand; the working performance of the coal gangue machine-made sand mortar is greatly improved, and the coal gangue machine-made sand mortar has wide applicability and social benefits.

Description

technical field [0001] The invention relates to a mortar plasticizer and a preparation method thereof, in particular to a special auxiliary agent for coal gangue machine-made sand mortar and a preparation method thereof. It belongs to the technical field of building materials. Background technique [0002] Coal gangue is a kind of tailings produced in the coal preparation process. If the coal gangue is directly disposed of as waste, it will pollute the environment on the one hand, because the escape of sulfur in the coal gangue will pollute the atmosphere, or cause damage to the land. Cause certain impact, so just have great impact on environment; On the other hand, coal gangue can also cause spontaneous combustion, causing accidents. However, through the beneficiation of coal gangue, we can reuse coal gangue as solid waste. Generally, the beneficiation process includes crushing, grinding, sorting, crushing and classification. Coal gangue can be separated into useful comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B28/00C04B18/12
CPCC04B40/0039C04B28/00C04B18/12C04B24/383C04B2103/304C04B2103/302C04B22/082C04B24/045C04B24/2623C04B22/062C04B14/062C04B18/08C04B14/02Y02W30/91
Inventor 冯正义闵广建王文正庞来学
Owner 山东江泰建材科技有限公司