Phosphogypsum-based sound insulation self-leveling mortar and application thereof

A technology of self-leveling mortar and phosphogypsum, applied in the field of mortar, can solve the problems of construction effect without self-leveling mortar construction performance, the influence of self-leveling fluidity and setting time, and the inability to apply floor sound interval, so as to improve the sound insulation performance. , Good construction performance, the effect of saving resources

Active Publication Date: 2022-06-03
瓮福化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Among them, CN201811045185.2 discloses an industrial by-product gypsum waste rubber particle wall material and its preparation method, using rubber particle composite gypsum to improve the sound insulation performance of the wall material, but it cannot be applied to the sound insulation between floors
In China's authorized patent 201710226715.2, a phosphogypsum-based self-leveling material is disclosed, which uses 50-70 mesh modified rubber particles to modify the self-leveling, but too fine rubber particles can only be used to relieve self-leveling. Swelling due to ettringite formation, less improvement in sound insulation
In addition, there are several patents disclosing the preparation method of sound insulation mortar modified by rubber particles, but most of them are traditional leveling mortar, which do not have the convenient construction performance and good construction effect of self-leveling mortar
And because the rubber particles are light in weight, they are easy to float in the self-leveling slurry, and have a significant impact on the fluidity and setting time of the self-leveling slurry, so there is a certain difficulty in application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] This example provides a phosphogypsum-based sound-insulating self-leveling mortar. The raw materials for the preparation of the mortar include, in parts by weight, 36 parts of α-type high-strength gypsum, 55 parts of building gypsum powder, 15 parts of rubber particles, 0.4 parts of cement, and 0.4 parts of retarded setting. 0.03 part of water reducing agent, 0.05 part of thickener, 0.05 part of defoamer, 0.40 part of rubber powder, 0.03 part of polyvinyl alcohol, 0.12 part of wood fiber, and 0.15 part of stabilizer.

[0064] The α-type high-strength gypsum was purchased from Wengfu Chemical Technology Co., Ltd. and conformed to the α30 grade of JC / T 2038-2010 "α-type high-strength gypsum".

[0065] Plaster of building plaster meets grade 3.0 in GB / T 9776-2008.

[0066] The mesh number of the rubber particles is 30 meshes.

[0067] The cement is aluminate cement.

[0068] The retarder is a vegetable protein retarder 200P from Swiss Sika.

[0069] The water reducing a...

Embodiment 2

[0078] This example provides a phosphogypsum-based sound-insulating self-leveling mortar. The raw materials for the preparation of the mortar include, in parts by weight, 72 parts of α-type high-strength gypsum, 16 parts of building gypsum powder, 22 parts of rubber particles, 0.4 parts of cement, and retarded setting. 0.03 part of water reducing agent, 0.08 part of water reducing agent, 0.06 part of thickener, 0.05 part of defoamer, 0.40 part of rubber powder, 0.04 part of polyvinyl alcohol, 0.12 part of wood fiber, and 0.18 part of stabilizer.

[0079] Plaster of building plaster meets grade 3.0 in GB / T 9776-2008.

[0080] The mesh number of the rubber particles is 30 meshes.

[0081] The cement is aluminate cement.

[0082] The retarder is a vegetable protein retarder 200P from Swiss Sika.

[0083] The water reducing agent is Swiss Sika polycarboxylate superplasticizer 540P.

[0084] The thickener is hydroxypropyl methyl cellulose ether, and its viscosity is 6000 mPa.s at ...

Embodiment 3

[0092] This example provides a phosphogypsum-based sound-insulating self-leveling mortar. The raw materials for the preparation of the mortar, in parts by weight, include 76 parts of α-type high-strength gypsum, 0 parts of building gypsum powder, 28 parts of rubber particles, 0.4 parts of cement, and 0.4 parts of retarder. 0 part of water reducing agent, 0.08 part of water reducing agent, 0.05 part of thickener, 0.05 part of defoamer, 0.40 part of rubber powder, 0.04 part of polyvinyl alcohol, 0.16 part of wood fiber, and 0.20 part of stabilizer.

[0093] Plaster of building plaster meets grade 3.0 in GB / T 9776-2008.

[0094] The mesh number of the rubber particles is 30 meshes.

[0095] The cement is aluminate cement.

[0096] The retarder is a vegetable protein retarder 200P from Swiss Sika.

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Abstract

The invention relates to the field of mortar, in particular to ardealite-based sound insulation self-leveling mortar and application thereof. The mortar is prepared from the following raw materials in parts by weight: 30-140 parts of ardealite-based gypsum, 5-20 parts of a sound insulation material and 0.2-1 part of cement. According to the ardealite-based sound insulation self-leveling mortar provided by the invention, the sound insulation materials such as rubber particles are added for modification, so that the construction performance and the construction effect of gypsum-based self-leveling can be ensured, and the sound insulation effect of the ardealite-based sound insulation self-leveling mortar is improved. The sound insulation performance of the material is obviously improved. The ardealite and the waste rubber are used as main raw materials, recycling of solid waste resources is achieved, and compared with traditional sound insulation leveling mortar, the sound insulation leveling mortar has better construction performance and sound insulation performance, facilitates saving of resources and production cost, and can be used for building materials, especially for floor spacing sound insulation.

Description

technical field [0001] The present invention relates to the field of mortar, and more particularly, to a phosphogypsum-based sound-insulating self-leveling mortar and its application. Background technique [0002] Floor sound insulation is divided into air sound insulation and impact sound insulation. For the commonly used 120mm cast-in-place concrete floor, its air sound insulation performance can basically meet the relevant standard requirements, but the impact sound insulation performance is relatively poor. In order to improve the impact sound insulation between floors, a floating structure is usually used, that is, a layer of elastic cushion is laid on the concrete floor, and concrete with a thickness of about 40mm is poured on the cushion. Although this technical solution can improve the impact sound of the floor However, in the construction process, there are many cross-operations, the elastic layer is easily damaged, forming a sound bridge, and the concrete layer on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B111/52C04B111/62
CPCC04B28/143C04B2111/52C04B2111/62C04B2201/50C04B18/16C04B18/22C04B22/08C04B24/14C04B24/26C04B24/383C04B24/2623C04B18/26C04B2103/0068C04B2103/302C04B22/06C04B24/00Y02W30/91
Inventor 张哲睿胡宏何松涛唐光宇薛绍秀郭子明阮运春晏波
Owner 瓮福化工科技有限公司
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