Gypsum mortar for building interior wall and using method of gypsum mortar

A technology of gypsum mortar and building gypsum, which is applied in the field of building materials and can solve problems such as poor fluidity, affecting wall strength, and poor water resistance

Inactive Publication Date: 2020-10-30
GUIZHOU CONSTR SCI RES & DESIGN INST OF CSCEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, building gypsum has poor water resistance, low strength, softens after absorbing water, and poor fl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A gypsum mortar for interior wall masonry, characterized in that it is made of the following raw materials: 60 parts of modified building gypsum, 10 parts of machine-made sand, 0.5 part of vitrified microbeads, 0.5 part of modified fiber, 3 parts of ash Calcium, 0.1 part of methyl hydroxyethyl cellulose ether, 0.1 part of water retaining agent, 0.1 part of redispersible latex powder, 0.1 part of slag powder, 0.1 part of magnesium aluminum silicate. Among them, the water-retaining agent is composed of hydroxypropyl methylcellulose and kaolinite powder in a mass ratio of 1:1.

[0021] The preparation of the modified fiber is as follows: take the polyester resin, add 10% by mass of polyethylene glycol and 3% by mass of aluminum silicate to carry out blending and melt spinning, and chop to obtain the primary modified fiber; Putting the primary modified fiber into a phosphatase solution with a concentration of 5% to moisten it, standing it for 30 minutes, and inactivating th...

Embodiment 2

[0025] A gypsum mortar for interior wall masonry, characterized in that it is made of the following raw materials: 80 parts of modified building gypsum, 20 parts of machine-made sand, 3 parts of vitrified microspheres, 0.8 parts of modified 21-0.3 parts can Then disperse latex powder, 0.4 parts of slag powder, and 0.2 parts of magnesium aluminum silicate. Among them, the water-retaining agent is composed of hydroxypropyl methylcellulose and kaolinite powder in a mass ratio of 1:1.

[0026] The preparation of the modified fiber is as follows: take the polyester resin, add 12% by mass of polyethylene glycol and 4% by mass of aluminum silicate for blending and melt spinning, and chop to obtain the primary modified fiber; Putting the primary modified fiber into a phosphatase solution with a concentration of 6% to moisten it, standing it for 30-40 minutes, and killing the enzyme at a high temperature to obtain the modified fiber.

[0027] The preparation of modified building gypsu...

Embodiment 3

[0030] A gypsum mortar for interior wall masonry, characterized in that it is made of the following raw materials: 90 parts of modified building gypsum, 40 parts of machine-made sand, 5 parts of vitrified microspheres, 1 part of modified fiber, 10 parts of ash Calcium, 0.5 part of methyl hydroxyethyl cellulose ether, 0.5 part of water retaining agent, 0.3 part of redispersible latex powder, 0.5 part of slag powder, 0.3 part of magnesium aluminum silicate. Among them, the water-retaining agent is composed of hydroxypropyl methylcellulose and kaolinite powder in a mass ratio of 1:1.

[0031] The preparation of the modified fiber is as follows: take the polyester resin, add 12% by mass of polyethylene glycol and 5% by mass of aluminum silicate for blending and melt spinning, and chop to obtain the primary modified fiber; Putting the primary modified fiber into a phosphatase solution with a concentration of 6% to moisten it, standing it for 30-40 minutes, and killing the enzyme at...

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to gypsum mortar for building an interior wall and a using method of the gypsum mortar. The gypsum mortar is prepared from the following raw materials: 60-90 parts of modified building gypsum, 10-40 parts of machine-made sand, 0.5-5 parts of vitrified micro bubbles, 0.5-1 part of modified fibers, 3-10 parts of ash calcium, 0.1-0.5 part of a retarder, 0.1-0.5 part of a water-retaining agent, 0.1-0.3 part of rubber powder, 0.1-0.5 part of a dispersing agent and 0.1-0.3 part of a lubricating agent. The gypsum mortar prepared by the invention has the advantages of strong adhesive property, high strength, good impermeability, thermal insulation property and the like; and a strong bonding effect is achieved among concrete hollow blocks, the heat preservation performance of an inner partition wall made of the concrete hollow blocks is basically not affected, and the problems of seepage, cracking and reduced heat preservation performance due to application of existing mortar to walls made of concrete hollow block are solved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a gypsum mortar used for interior wall masonry and an application method thereof. Background technique [0002] Phosphogypsum is a solid waste produced by the reaction of phosphate rock and sulfuric acid to produce phosphoric acid during the wet process of phosphoric acid chemical industry. With the development of high-concentration phosphate fertilizers in the world, the discharge of phosphogypsum will also increase day by day. The stacking of phosphogypsum takes up a lot of land and causes great damage to the environment. Enterprises spend a lot of money every year on the treatment of phosphogypsum and the phosphorus chemical industry. The development of enterprises has caused great pressure, so the treatment of phosphogypsum has become urgent. Therefore, the treatment and utilization of phosphogypsum has become a worldwide problem. The effective use of ...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/27
CPCC04B28/14C04B2201/50C04B2111/27C04B14/06C04B14/24C04B22/064C04B24/383C04B18/141C04B14/04C04B14/104C04B16/0683C04B24/28C04B14/041C04B24/003C04B14/28C04B22/165C04B22/12C04B24/38C04B2103/0057
Inventor 李泽钢徐立斌潘佩瑶杨兴聂晓鹏崔晨周灵罗通陈亦苏廖昶陈尚伟朱国良何信周
Owner GUIZHOU CONSTR SCI RES & DESIGN INST OF CSCEC
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