A kind of gypsum mortar and preparation method thereof

A technology for gypsum mortar and desulfurization gypsum, which is applied in the field of building materials, can solve the problems of ineffective utilization, poor water resistance of thermal insulation mortar, poor durability, etc., and achieves excellent mechanical properties, good thermal insulation and fire protection effects, and improved flexibility.

Active Publication Date: 2021-11-30
江苏省苏安能节能建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the gypsum-based thermal insulation mortar is not water-resistant, which will greatly affect its promotion and application, and also bring a large accumulation of industrial by-product gypsum, which cannot be effectively used. Occasionally, water-resistant thermal insulation mortar is also seen. The most important thing is to add organic waterproof materials such as silicone. This type of material can only form a thin film on the surface of the material to block pores and cracks. It is a physical method, but it will still decay over time, with poor durability and poor water resistance.

Method used

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  • A kind of gypsum mortar and preparation method thereof
  • A kind of gypsum mortar and preparation method thereof
  • A kind of gypsum mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Composition of raw materials (parts by weight): 100 parts of modified polyurethane / diatomite composite material, 100 parts of desulfurized gypsum, 20 parts of mineral admixture, 15 parts of composite Portland cement, 2 parts of naphthalene-based water reducer, 5 parts of fine sand 7 parts of EVA rubber powder, 1 part of sodium citrate, 12 parts of hollow glass microspheres and 50 parts of water.

[0033] Mineral admixtures include (parts by weight): 15 parts of finely ground blast furnace slag, 5 parts of bentonite, 7 parts of heavy calcium carbonate, 3 parts of talcum powder, 10 parts of basalt, 3 parts of washed sand, 20 parts of polyethylene glycol 400, 100 parts of water.

[0034] The mineral admixture is prepared by the following method: further pulverize the finely ground blast furnace slag, bentonite, basalt, washed sand, and heavy calcium carbonate through a 500-mesh sieve, and mix the obtained powder with talcum powder, polyethylene glycol 400, After mixing an...

Embodiment 2

[0044] Composition of raw materials (parts by weight): 150 parts of modified polyurethane / diatomite composite material, 120 parts of desulfurized gypsum, 40 parts of mineral admixture, 30 parts of Portland cement, 5 parts of sulfamate-based water reducer, fine 10 parts of sand, 7-12 parts of EVA rubber powder, 3 parts of potassium tartrate, 20 parts of hollow glass microspheres and 70 parts of water.

[0045] Mineral admixtures include (parts by weight): 30 parts of finely ground blast furnace slag, 10 parts of bentonite, 12 parts of heavy calcium carbonate, 10 parts of talcum powder, 15 parts of basalt, 7 parts of washed sand, 30 parts of polyethylene glycol 400, 120 parts of water.

[0046] The mineral admixture is prepared by the following method: further pulverize the finely ground blast furnace slag, bentonite, basalt, washed sand, and heavy calcium carbonate through a 500-mesh sieve, and mix the obtained powder with talcum powder, polyethylene glycol 400, After mixing a...

Embodiment 3

[0056] Composition of raw materials (parts by weight): 126 parts of modified polyurethane / diatomite composite material, 110 parts of desulfurized gypsum, 30 parts of mineral admixture, 17 parts of white Portland cement, 3 parts of polycarboxylate water reducer, fine 7 parts of sand, 10 parts of EVA rubber powder, 2 parts of sodium acrylate, 15 parts of hollow glass microspheres and 60 parts of water.

[0057] Mineral admixtures include (parts by weight): 22 parts of finely ground blast furnace slag, 7 parts of bentonite, 10 parts of heavy calcium carbonate, 5 parts of talcum powder, 12 parts of basalt, 5 parts of washed sand, 25 parts of polyethylene glycol 400, 110 parts of water.

[0058] The mineral admixture is prepared by the following method: further pulverize the finely ground blast furnace slag, bentonite, basalt, washed sand, and heavy calcium carbonate through a 500-mesh sieve, and mix the obtained powder with talcum powder, polyethylene glycol 400, After mixing and...

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Abstract

The present invention provides a gypsum mortar prepared from the following raw materials in parts by weight: 100-150 parts of modified polyurethane / diatomite composite material, 100-120 parts of desulfurized gypsum, 20-40 parts of mineral admixture, silicon 15-30 parts of salt cement, 2-5 parts of water reducing agent, 5-10 parts of fine sand, 7-12 parts of EVA rubber powder, 1-3 parts of gypsum retarder, 12-20 parts of hollow glass microspheres and water 50‑70 servings. The invention has good waterproof and crack resistance performance, good cohesiveness, high strength, good thermal insulation and fireproof effect, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a gypsum mortar and a preparation method thereof. Background technique [0002] Mortar is a commonly used building material, generally used in masonry and plastering works. Mortar is made by mixing cementitious materials (cement, lime, clay, etc.) and fine aggregate (sand) with water. According to the composition materials, it can be divided into: ①Gypsum mortar: made of lime paste, sand and water according to a certain ratio, generally used for masonry and plastering layers that do not require high strength and are not subject to moisture; ②Cement mortar: made of Cement, sand and water are made according to a certain ratio, and are generally used for masonry, walls or floors in wet environments or in water; ③Mixed mortar: Add appropriate admixtures such as fly ash, Made of diatomite to save the amount of Portland cement or lime and improve the workability of mortar....

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B28/14
CPCC04B28/144C04B2111/27C04B24/282C04B14/08C04B14/06C04B14/24C04B24/2635C04B24/06C04B22/00C04B18/141C04B14/104C04B14/042C04B14/14C04B14/28C04B24/26C04B2103/302
Inventor周锦峰
Owner江苏省苏安能节能建材科技有限公司