Gypsum-based plastering mortar composition

A technology for plastering mortar and composition, applied in the field of material preparation, can solve the problems of increased energy consumption and cost, high production cost, low thermal conductivity, etc., and achieves a low production cost, good construction performance and stable product performance Effect

Pending Publication Date: 2022-06-21
东方雨虹砂粉科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN 110950558 A records that the ceramic waste is used to prepare high-strength aggregate and the high-strength aggregate prepared. It has good thermal performance, high utilization rate of industrial solid waste, and the cylinder compressive strength increases with the increase of bulk density, and the maximum strength can reach 11.8MPa. It is a rare high-strength aggregate, but its preparation process includes a calcination procedure. Stage virtually increases energy consumption and cost, and cannot be promoted for a long time under the current environment that advocates high environmental protection and low energy consumption
[0005] China Building Materials Research Institute Co., Ltd. also introduced a preparation method for hydrophobic ceramsite aggregates. The aggregates prepared by it have the advantages of high solid waste utilization rate, high strength, good hydrophobicity and sound insulation, etc., but its The production process is complicated, and it needs to be mixed and granulated, calcined and granulated, and the surface is coated with hydrophobic materials for three granulations. In addition to calcination, the ceramsite needs to be additionally coated with hydrophobic materials, which also greatly increases the production cost and is not conducive to mass production.
[0006] Therefore, in view of the high manufacturing cost of the above-mentioned existing aggregates, the prepared aggregates not only need to be calcined at high temperature, but also need to add more polymer additives, it is urgent to redesign the formula of the aggregates and prepare a A highly adaptable, high-strength aggregate that can replace construction sand

Method used

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  • Gypsum-based plastering mortar composition

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Effect test

Embodiment 1

[0090] This embodiment provides an aggregate comprising a core material, a porous layer material and a ceramic layer structure material;

[0091] The core material is walnut shell solid particles and / or corn flour solid particles;

[0092] The porous layer material includes the following components in parts by weight: 5 parts of cement, active components (30 parts of fly ash, 30 parts of active blast furnace slag, 10 parts of silica fume, 3 parts of kaolin), activator (3 parts of quicklime) parts, 1 part of gypsum), pelletizing agent (5 parts of polyvinyl alcohol, 2 parts of bentonite), dispersant (5 parts of sodium tripolyphosphate, 3 parts of polycarboxylate), 3 parts of xanthan gum, K 2 O 0.25 servings;

[0093] The ceramic layer structure material includes the following components in parts by weight: 55 parts of dead-burned MgO, 18 parts of ammonium dihydrogen phosphate, 20 parts of potassium dihydrogen phosphate, 1 part of borax, 5 parts of diammonium hydrogen phosphate,...

Embodiment 2

[0103] This embodiment provides an aggregate comprising a core material, a porous layer material and a ceramic layer structure material;

[0104] The core material is walnut shell solid particles and / or corn flour solid particles;

[0105] The porous layer material includes the following components in parts by weight: 5 parts of cement, active components (25 parts of fly ash, 30 parts of active blast furnace slag, 15 parts of silica fume, 3 parts of kaolin, and 0.5 parts of stone powder), excitation Agents (1 part of sodium sulfate, 1 part of sodium silicate, 1 part of quicklime, 1 part of triethanolamine), pelletizing agent (2 parts of polyvinyl alcohol, 2 parts of bentonite), dispersant (3 parts of sodium tripolyphosphate, polycarboxylate) acid 3 parts), 3 parts xanthan gum, K 2 O 0.25 servings;

[0106] The ceramic layer structure material includes the following components in parts by weight: 40 parts of dead-burned MgO, 40 parts of ammonium dihydrogen phosphate, 15 parts...

Embodiment 3

[0109] This embodiment provides an aggregate comprising a core material, a porous layer material and a ceramic layer structure material;

[0110] The core material is walnut shell solid particles and / or corn flour solid particles;

[0111] The porous layer material includes the following components in parts by weight: 7 parts of cement, active components (20 parts of fly ash, 30 parts of active blast furnace slag, 15 parts of silica fume, 4 parts of kaolin), activator (3 parts of quicklime) parts, 2 parts of gypsum), pelletizing agent (5 parts of polyvinyl alcohol, 2 parts of bentonite, 2 parts of polyethylene glycol, 2 parts of starch), dispersant (5 parts of sodium tripolyphosphate), 3 parts of xanthan gum, K 2 O 0.25 servings;

[0112] The ceramic layer structure material includes the following components in parts by weight: 45 parts of dead-burned MgO, 30 parts of ammonium dihydrogen phosphate, 15 parts of potassium dihydrogen phosphate, 2 parts of borax, 4 parts of diam...

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Abstract

The invention belongs to the field of material preparation, and discloses a gypsum-based plastering mortar composition. The mortar composition comprises aggregate, sand, desulfurized gypsum powder, cellulose ether and auxiliaries, wherein the aggregate comprises a core material, a porous layer material and a ceramic layer structure material. The aggregate used by the gypsum-based plastering mortar composition is of a core-porous layer-ceramic layer structure, and the product performance is stable, so that the mortar composition has good construction performance.

Description

technical field [0001] The invention belongs to the field of material preparation, and more particularly relates to a gypsum-based plastering mortar composition. Background technique [0002] Aggregate refers to the bulk density of 900-1500Kg / m 3 The general term for coarse and fine aggregates, the main categories include artificial aggregates (such as ceramsite, ceramic sand, etc.), natural aggregates (such as pumice, volcanic slag, etc.) and industrial waste aggregates (such as natural coal gangue, cinder, etc.). [0003] The aggregate preparation method is to physically mix industrial waste residue, cement, alkaline substances and other materials, then granulate by a disc granulator, and then calcinate at a high temperature above 1000°C to form aggregates. At present, the aggregates are mainly sintered ceramsite, carbonized steel slag light aggregates and massive aggregates, and the basic manufacturing process is very mature. Currently known aggregates include: [0004...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/24C04B28/34C04B28/02C04B111/34
CPCC04B28/144C04B40/0046C04B28/02C04B28/344C04B2201/50C04B2201/20C04B2201/10C04B2111/343C04B18/248C04B14/02C04B14/06C04B14/104C04B24/383C04B24/38C04B24/2623C04B24/14C04B18/08C04B18/141C04B18/146C04B14/106C04B22/064C04B22/143C04B22/16C04B24/28C04B22/062C04B22/0013C04B24/26Y02W30/91
Inventor 汤青青申蓓蓓赵久山于鹏赵伦赵明慧刘京会
Owner 东方雨虹砂粉科技集团有限公司
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