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Flexible anti-cracking protective mortar and preparation method thereof

A kind of mortar and flexible technology, which is applied in the field of mortar and flexible anti-cracking protective mortar, can solve the problems that restrict the promotion and application of new wall materials, shrinkage and cracking of building walls, leakage and water seepage, etc., and achieve easy control of product quality and excellent construction performance , the effect of low water absorption

Inactive Publication Date: 2013-07-31
JIANGSU XIANGYUAN ENVIRONMENTAL PROTECTION BUILDING MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, my country is gradually promoting the application of various new building wall materials. However, due to the characteristics of light weight, heat preservation, and high water absorption of new wall materials, it is easy to cause shrinkage, cracking and seepage of building walls when ordinary plastering mortar is used. Water leakage, hollowing and other problems seriously restrict the popularization and application of new wall materials

Method used

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  • Flexible anti-cracking protective mortar and preparation method thereof
  • Flexible anti-cracking protective mortar and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The components of the flexible anti-crack protective mortar in this embodiment are: Ordinary Portland cement: 30.55, Quartz sand: 58, Slaked lime: 5, Anti-crack fiber: 4.2, Redispersible latex powder: 1.5, Cellulose ether: 0.3, plastic expansion agent: 0.05, water-repellent agent: 0.4. Among them, quartz sand is prepared from 30-50 mesh, 40-70 mesh, and 70-100 mesh according to the ratio of 2:4:1 by weight; the anti-cracking fiber is made of lignin fiber with a fiber length ≤ 3mm, and its function is to impart flexibility. Anti-crack protective mortar has better crack resistance and flexibility; redispersible latex powder is ethylene-vinyl acetate latex powder; cellulose ether is hydroxyethyl methyl cellulose with a viscosity of 6000mPa.s-45000mPa.s; plasticity The swelling agent is a powdery modified organic acid salt-based plastic swelling agent; the water-repellent agent is a silicone-type water-repellent agent.

[0026] During preparation, after weighing the compon...

Embodiment 2

[0029] The components by weight of the flexible anti-crack protective mortar of this embodiment are: Ordinary Portland cement: 40, Quartz sand: 48, Slaked lime: 6, Anti-crack fiber: 3.2, Redispersible latex powder: 2, Cellulose ether: 0.2, plastic expansion agent: 0.15, water-repellent agent: 0.45. Among them, quartz sand is prepared from 30-50 mesh, 40-70 mesh, 70-100 mesh according to the ratio of 3:6:3 by weight; the anti-cracking fiber is lignin fiber with a fiber length of about 2mm; redispersible latex The powder is ethylene-vinyl chloride-vinyl laurate latex powder; the cellulose ether is hydroxypropyl methylcellulose with a viscosity of 6000mPa.s-45000mPa.s; the plastic expansion agent is a powdery modified organic acid salt-based plastic expansion agent agent; water-repellent agent is a osmotic crystalline material. The preparation method is basically the same as that of Example 1, and will not be described in detail.

[0030] The performance obtained by the test si...

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Abstract

Belonging to the technical field of building materials, the invention relates to a flexible anti-cracking protective mortar and also relates to its preparation method. The flexible anti-cracking protective mortar comprises the following components by weight part: 30-50 of ordinary portland cement, 50-65 of quartz sand, 5-10 of slaked lime, 3-6 of anti-cracking fibers, 1.2-2.5 of redispersible emulsion powder, 0.2-0.5 of cellulose ether, 0.05-0.2 of a plastic expansion agent, and 0.3-0.6 of a water repellent agent. The flexible anti-cracking protective mortar provided in the invention has the characteristics of excellent construction performance, high breaking strength and compressive strength, good flexibility, high bonding tensile strength, good anti-cracking performance, excellent waterproof and hydrophobic effects, etc. When the flexible anti-cracking protective mortar is used for anti-cracking protection of a building wall heat preservation and energy saving system, the drying shrinkage cracking problem caused by various stress can be solved. With good and stable performance, the flexible anti-cracking protective mortar can be used directly by adding water at construction sites. The flexible anti-cracking protective mortar provided in the invention can also be used in plastering anti-cracking protective construction processes of various novel building wall materials so as to play a part in anti-cracking protection and water resistance.

Description

technical field [0001] The invention relates to a kind of mortar, especially a kind of flexible anti-crack protective mortar, and also relates to its preparation method, which belongs to the technical field of building materials. Background technique [0002] With the rapid increase of building energy consumption in our country, building energy conservation has become a basic national policy of our country. Among many building energy-saving technologies, the application of safe, efficient and durable building wall insulation system is one of the main technical measures. In the building wall insulation system, anti-crack protective mortar, which can protect the insulation system, prevent external force damage, and prevent water penetration, has become one of the key materials that determine the safety, efficiency and weather resistance of the entire insulation system. [0003] In addition, my country is gradually promoting the application of various new building wall materia...

Claims

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Application Information

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IPC IPC(8): C04B28/04
Inventor 张国防苏文国马先伟
Owner JIANGSU XIANGYUAN ENVIRONMENTAL PROTECTION BUILDING MATERIALS TECH CO LTD
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