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Lightweight crack-resistant adhesive mortar

A bonding mortar, lightweight technology, applied in the field of building materials, can solve the problems of increasing building load-bearing load, insufficient mortar adhesion, and lack of thermal insulation effect, so as to reduce load-bearing load, reduce self-weight, and have good crack resistance. Effect

Inactive Publication Date: 2019-10-22
蚌埠市阿尔贝斯建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, there have been many studies on adhesive mortar in my country, and there have been many applications in actual engineering. However, the existing adhesive mortar for exterior walls still has a large self-weight, which increases the load-bearing load of the building; With thermal insulation effect; easy to dry shrinkage cracking and other problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A lightweight anti-cracking adhesive mortar, the raw materials of which include by weight: 29 parts of oven-dried sand, 20 parts of biochar, 13 parts of modified mica powder, 25 parts of 525 cement, 4 parts of redispersible latex powder, hydroxypropyl 0.45 parts of methyl cellulose, 0.8 parts of starch ether, 1.2 parts of silane coupling agent KH-560.

[0027] Among them, the particle size of the drying sand is 40 mesh, and the particle size of the biochar is 40 mesh.

[0028] The preparation method of described modified mica powder comprises the following steps:

[0029] S1. Mix muscovite and montmorillonite into a ball mill, and pulverize to a particle size of 15 μm to obtain a mixture A;

[0030] S2. Dry the mixture A obtained in S1 to a constant weight at 110° C. to obtain a mixture B;

[0031] S3. Mix the mixture B obtained in S2 with the silane coupling agent KH-560, heat to 70° C.; keep stirring for 60 minutes to obtain modified mica powder;

[0032] Among the...

Embodiment 2

[0035] A lightweight anti-cracking adhesive mortar, the raw materials of which include by weight: 30 parts of oven-dried sand, 21 parts of biochar, 11 parts of modified mica powder, 26 parts of 525 cement, 6 parts of redispersible latex powder, hydroxypropyl 0.35 parts of methyl cellulose, 0.9 parts of starch ether, and 1.4 parts of silane coupling agent KH-560.

[0036] Among them, the particle size of the drying sand is 45 mesh, and the particle size of the biochar is 45 mesh.

[0037] The preparation method of described modified mica powder comprises the following steps:

[0038] S1. Mix muscovite and montmorillonite into a ball mill, and pulverize to a particle size of 13 μm to obtain a mixture A;

[0039] S2. Dry the mixture A obtained in S1 to a constant weight at 100° C. to obtain a mixture B;

[0040] S3. Mix the mixture B obtained in S2 with the silane coupling agent KH-560, heat to 85° C.; keep stirring for 70 minutes to obtain modified mica powder;

[0041] Among...

Embodiment 3

[0044] A lightweight anti-cracking adhesive mortar, the raw materials of which include by weight: 31 parts of oven-dried sand, 18 parts of biochar, 12 parts of modified mica powder, 27 parts of 525 cement, 5 parts of redispersible latex powder, hydroxypropyl 0.4 parts of methyl cellulose, 1.0 parts of starch ether, 1.3 parts of silane coupling agent KH-550.

[0045] Among them, the particle size of the drying sand is 30 mesh, and the particle size of the biochar is 30 mesh.

[0046] The preparation method of described modified mica powder comprises the following steps:

[0047] S1. Mix muscovite and montmorillonite into a ball mill, and pulverize to a particle size of 11 μm to obtain a mixture A;

[0048] S2. Dry the mixture A obtained in S1 to a constant weight at 115° C. to obtain a mixture B;

[0049] S3. Mix the mixture B obtained in S2 with the silane coupling agent KH-560, heat to 75° C.; keep stirring for 80 minutes to obtain modified mica powder;

[0050] Among them...

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Abstract

The invention discloses a lightweight crack-resistant adhesive mortar. The raw materials of the lightweight crack-resistant adhesive mortar include, by weight, 25-35 parts of dried sands, 15-25 partsof biochar, 8-15 parts of a modified mica powder, 20-30 parts of 525 cement, 2-8 parts of redispersible latex powder, 0.1-0.7 part of hydroxypropyl methylcellulose, 0.5-1.5 parts of starch ether and 0.5-2 parts of a silane coupling agent. The lightweight crack-resistant adhesive mortar provided by the invention has the characteristics of small self-weight, high bonding strength, good thermal insulation property and good crack resistance, and is suitable for the building exterior wall thermal insulation system.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a lightweight anti-crack adhesive mortar. Background technique [0002] Adhesive mortar is a pre-mixed dry powder drying mortar which is mechanically mixed with cement, quartz sand, polymer binder and various additives. It is mainly used for bonding external wall insulation boards and producing building energy-saving insulation. panels, bonded tiles, etc. [0003] In recent years, there have been many studies on adhesive mortar in my country, and there have been many applications in actual engineering. However, the existing adhesive mortar for exterior walls still has a large self-weight, which increases the load-bearing load of the building; It has the effect of heat preservation; it is easy to dry, shrink and crack. Contents of the invention [0004] Based on the technical problems existing in the background technology, the present invention proposes a lightweight anti-crac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/08C04B28/04
CPCC04B28/04C04B2111/40C04B14/06C04B14/022C04B14/20C04B24/24C04B24/38C04B24/383C04B24/42C04B38/08
Inventor 张殿楼张科陆飞梅永卫张成成
Owner 蚌埠市阿尔贝斯建材有限公司
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