A plastering mortar admixture

A technology of plastering mortar and admixture, applied in the field of building materials, to achieve the effects of improving compactness, preventing water intrusion, and reducing local stress phenomena

Active Publication Date: 2018-12-04
安阳建工(集团)混凝土外加剂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the technical problems existing in the existing building plastering mortar admixture, the present invention provides a new building plastering mortar admixture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The admixture for plastering mortar of the present invention is represented by weight percentage, and is composed of 8% modified calcium lignosulfonate, 2% polyacrylonitrile fiber, 35% bentonite, 45% fly ash and 10% auxiliary materials.

[0019] The polyacrylonitrile fiber used has an equivalent diameter of 10-50 μm and a length of 5-20 mm;

[0020] The composition and mass percentage of the auxiliary materials are: 30% of hydroxypropyl methylcellulose ether, 20% of polyvinyl alcohol, 6% of sodium lauryl sulfate, 30% of sodium gluconate, and 14% of white sugar.

Embodiment 2

[0022] The admixture for plastering mortar of the present invention is represented by weight percentage, and is composed of 15% of modified calcium lignosulfonate, 4% of polyacrylonitrile fiber, 28% of bentonite, 35% of fly ash and 18% of auxiliary materials.

[0023] The polyacrylonitrile fiber used has an equivalent diameter of 10-50 μm and a length of 5-20 mm;

[0024] The composition and mass percentage of the auxiliary materials are: 25% of hydroxypropyl methylcellulose ether, 30% of polyvinyl alcohol, 5% of sodium lauryl sulfate, 25% of sodium gluconate, and 15% of white sugar.

Embodiment 3

[0026] The admixture for plastering mortar of the present invention is expressed in weight percent and consists of 18% of modified calcium lignosulfonate, 5% of polyacrylonitrile fiber, 27% of bentonite, 30% of fly ash and 20% of auxiliary materials.

[0027] The polyacrylonitrile fiber used has an equivalent diameter of 10-50 μm and a length of 5-20 mm;

[0028] The composition and mass percentage of the auxiliary materials are: 35% of hydroxypropyl methylcellulose ether, 25% of polyvinyl alcohol, 8% of sodium lauryl sulfate, 22% of sodium gluconate, and 10% of white sugar.

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Abstract

The invention discloses a plastering mortar admixture. The admixture is mainly prepared from raw materials in percentage by weight as follows: 5%-20% of modified calcium lignosulphonate, 1%-5% of fibers, 20%-50% of bentonite, 30%-60% of fly ash and 10%-20% of an auxiliary material, wherein the auxiliary material is prepared from cellulose hydroxypropyl methyl ether hyprolose, polyvinyl alcohol, lauryl sodium sulfate, sodium gluconate and white sugar. The admixture produced with the technical scheme is low in cost, simple to use, green and environment-friendly and realizes waste recovery; besides, construction operability of mortar is improved, mortar cracking and hollowing of the mortar are greatly reduced and prevented, and mortar strength is improved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an admixture for building plastering mortar. Background technique [0002] The currently used on-site mixing mortar has problems such as dust pollution, time-consuming and labor-intensive, and poor quality assurance capabilities. To promote the use of ready-mixed mortar, there must be high-quality mortar admixture as the basis, which is an effective measure for energy saving, emission reduction, resource conservation, civilized construction, and improvement of project quality. In recent years, construction mortar admixtures such as mortar essence, lime net, and mortar king have been used in construction projects, which have played a certain role in improving the workability of construction mortar and saving lime. [0003] However, the reality is that the freshly painted interior and exterior wall mortars are in the natural environment (especially in hot su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B24/18C04B16/0658C04B14/104C04B18/08C04B24/383C04B24/2623C04B24/16C04B24/10
Inventor 胡新爱赵轶财张磊
Owner 安阳建工(集团)混凝土外加剂有限责任公司
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