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Environment-friendly plastering dry-mixed mortar and preparation method thereof

A dry-mixed mortar, green and environmental protection technology, applied in the field of building materials, can solve the problems of reducing the environmental protection and environmental impact of dry-mixed mortar, and achieve the effects of improving environmental friendliness, improving comprehensive performance, and improving water retention.

Active Publication Date: 2020-07-03
河南锦亿建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these admixtures are organically synthesized substances, and some organic solvents and other organic substances will remain in them. Excessive addition of admixtures will reduce the environmental protection of dry-mixed mortar, especially when plastering dry-mixed mortar is used for interior decoration. , the impact on the environment is greater

Method used

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Examples

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Effect test

preparation example Construction

[0045] The preparation method of the green and environment-friendly plastering dry-mixed mortar of the present invention comprises the following steps: 1) uniformly mixing machine-made sand and oven-dried sand to obtain a first mixture; mixing cement, stone powder and fly ash uniformly to obtain a second mixture ; Mix desulfurized gypsum, lime, latex powder, and water reducer evenly to obtain the third mixture; 2) Mix the first mixture, the second mixture, and the third mixture evenly to obtain.

[0046] In step 1), before mixing the machine-made sand and the oven-dried sand evenly, the machine-made sand is dried until the water content is not greater than 0.5%. In step 1), before mixing the mechanical cement, stone powder and fly ash evenly, the cement, stone powder and fly ash are dried until the water mass fraction is not greater than 0.5%. In step 1), clay mineral powder is also added when mechanical cement, stone powder and fly ash are mixed evenly.

[0047] In step 2), ...

Embodiment 1

[0049] The green and environment-friendly plastering dry-mix mortar of this embodiment is made of the following raw materials: 95kg of cement, 650kg of machine-made sand, 175kg of oven-dried sand, 20kg of stone powder, 40kg of fly ash, 8kg of desulfurized gypsum, 20kg of slaked lime, and 5kg of latex powder , Water reducing agent 0.8kg.

[0050] Among the above raw materials, the cement is P.0 42.5 Portland cement. In the machine-made sand, the mass proportion of particles with a particle size of 0.15-0.3mm is 22%, and the mass proportion of particles with a particle size of 0.3-0.6mm is 23%. , the mass proportion of particles with a particle size of 0.6-1.18mm is 34%. The particle size of the dried sand is 140 mesh. Stone powder is limestone powder. Fly ash is Class II fly ash. Latex powder is ethylene-vinyl acetate copolymer powder. The water reducer is a polycarboxylate water reducer.

[0051] The preparation method of the green and environment-friendly plastering dry-...

Embodiment 2

[0058] The green and environmentally friendly plastering dry-mix mortar of this embodiment is made of the following raw materials: 100kg of cement, 655kg of machine-made sand, 180kg of oven-dried sand, 25kg of stone powder, 50kg of fly ash, 10kg of desulfurized gypsum, 15kg of slaked lime, and 3kg of latex powder , water reducing agent 0.4kg, clay mineral powder 20kg.

[0059] Among the above raw materials, the cement is P.0 42.5 Portland cement. In the machine-made sand, the mass proportion of particles with a particle size of 0.15-0.3mm is 22%, and the mass proportion of particles with a particle size of 0.3-0.6mm is 23%. , the mass proportion of particles with a particle size of 0.6-1.18mm is 34%. The particle size of the dried sand is 140 mesh. Stone powder is limestone powder. Fly ash is Class II fly ash. Latex powder is ethylene-vinyl acetate copolymer powder. The water reducer is a polycarboxylate water reducer. The clay mineral powder is attapulgite.

[0060] The...

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Abstract

The invention discloses environment-friendly plastering dry-mixed mortar and a preparation method thereof, and belongs to the technical field of building materials. The environment-friendly plasteringdry-mixed mortar is mainly prepared from the following raw materials in parts by weight: 95-110 parts of cement, 650-670 parts of machine-made sand, 175-180 parts of dried sand, 20-30 parts of stonepowder, 40-50 parts of fly ash, 8-12 parts of desulfurized gypsum, 15-20 parts of lime, 2-5 parts of latex powder and 0.35-0.8 part of a water reducing agent. The environment-friendly plastering dry-mixed mortar has the advantages that the proportions of various raw materials are reasonably set, the mechanical property of the dry-mixed mortar is fully guaranteed, the water-retaining property of the dry-mixed mortar is not reduced, the use amount of additives is also greatly reduced, and the environmental friendliness of the plastering dry-mixed mortar is improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a green and environment-friendly plastering dry-mixed mortar and a preparation method thereof. Background technique [0002] With the rapid development of the economy, the traditional method of mixing and preparing mortar at the construction site has been difficult to meet the demand due to its low efficiency. However, dry-mixed mortar can be quickly constructed and has excellent performance, making its application range more and more extensive. Dry-mixed mortar is a material made by mixing aggregate (sand), inorganic cementitious materials (cement, etc.) and admixtures (waterproofing agent, thickener, etc.) in a certain proportion, and can be used directly after mixing with water. Also known as mortar dry powder, dry powder mortar, etc. Due to the convenience of transportation, it can be directly used by adding water on site, and the construction efficiency is very h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B40/00C04B14/10C04B18/24
CPCC04B28/144C04B40/0028C04B2/02C04B7/02C04B14/02C04B14/28C04B18/08C04B24/2623C04B2103/302C04B14/102C04B14/104C04B18/248Y02W30/91
Inventor 彭媛种媛媛王苗
Owner 河南锦亿建材有限公司
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