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Anti-cracking gypsum-based plastering mortar and preparation method thereof

A plaster mortar and gypsum-based technology, which is applied in the field of building gypsum-based thermal insulation materials, can solve problems such as the bottleneck of toughening and crack resistance effects, and achieve the effects of improving deformation resistance, reducing dry shrinkage, and strengthening anti-deformation effects

Inactive Publication Date: 2020-06-05
CHONGQING JIANDA BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fibers currently used in gypsum-based cementitious materials are all in the form of single blending, and a few are mixed in the way, but it is difficult to give full play to the complementary advantages of different types of fibers and the interaction between different types of fibers, resulting in increased The crack resistance effect is in the bottleneck period

Method used

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  • Anti-cracking gypsum-based plastering mortar and preparation method thereof
  • Anti-cracking gypsum-based plastering mortar and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] figure 1 The basic structure of the building's exterior wall interior insulation system is a gypsum-based insulation material. In order to ensure the uniformity and compatibility of the materials of the whole system, a new type of building insulation system is established on the basis of replacing cement base with gypsum base. This invention develops a crack-resistant gypsum-based plaster mortar for gypsum-based thermal insulation. The plastering layer of the thermal insulation system of the external wall of the building.

[0025] Taking 100kg of building plaster used for preparing the anti-cracking type gypsum-based plaster mortar of the present invention as an example, the raw materials used and their quality are as follows:

[0026] Construction plaster 100kg

[0027] 41kg of water

[0028] Polypropylene fiber 0.1kg

[0029] Glass fiber 0.2kg

[0030] Silane coupling agent 0.3kg

[0031] Adhesive 0.2kg

[0032] Water retaining agent 0.3kg

[0033] Water reduc...

Embodiment 2

[0042] Taking 100kg of building plaster used for preparing the anti-cracking type gypsum-based plaster mortar of the present invention as an example, the raw materials used and their quality are as follows:

[0043] Construction plaster 100kg

[0044] 40kg of water

[0045] Polypropylene fiber 0.1kg

[0046] Glass fiber 0.2kg

[0047] Silane coupling agent 0.5kg

[0048] Adhesive 0.2kg

[0049] Water retaining agent 0.3kg

[0050] Water reducer 0.5kg

[0051] Retarder 0.3kg;

[0052] The specification and preparation method of the above-mentioned raw materials are the same as in Example 1.

Embodiment 3

[0054] Taking 100kg of building plaster used for preparing the anti-cracking type gypsum-based plaster mortar of the present invention as an example, the raw materials used and their quality are as follows:

[0055] Construction plaster 100kg

[0056] 41kg of water

[0057] Polypropylene fiber 0.2kg

[0058] Glass fiber 0.1kg

[0059] Silane coupling agent 0.4kg

[0060] Adhesive 0.3kg

[0061] Water retaining agent 0.4kg

[0062] Water reducer 0.3kg

[0063] Retarder 0.3kg;

[0064] The specification and preparation method of the above-mentioned raw materials are the same as in Example 1.

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Abstract

The invention relates to anti-cracking gypsum-based plastering mortar. Raw materials comprise, by mass, 100 parts of building gypsum, 35 to 45 parts of water, 0.1 to 0.3 part of polypropylene fibers,0.1 to 0.3 part of glass fibers, 0.2 to 0.6 part of a silane coupling agent, 0.2 to 0.6 part of an adhesive, 0.2 to 0.6 part of a water retaining agent, 0.2 to 0.6 part of a water reducing agent and 0.2 to 0.6 part of a retarder. According to the gypsum-based plastering mortar disclosed by the invention, the advantages of the polypropylene fibers and the glass fibers are fully exerted to complement each other, and the fibers with different elasticity moduli have an excellent synergistic effect; the auxiliary agents are added to improve the dispersity of the fibers, thereby enhancing the fiberbridging action in the stress state, further enhancing the toughening and crack arresting effects of the matrix, enhancing the fracture deformation and reducing the relative cracking index.

Description

technical field [0001] The invention belongs to the field of building gypsum-based thermal insulation materials, and relates to a crack-resistant gypsum-based plaster mortar and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy in recent years, the urbanization process has also been accelerated. More and more cities are undergoing large-scale construction, and a large number of buildings have sprung up in cities all over the world. On the one hand, these buildings have brought prosperity to the urban construction industry, the real estate industry, and the entire social economy; of sustainable development. Moreover, my country's building energy consumption accounts for more than 30% of the terminal energy consumption of the whole society. With the improvement of people's living standards, this proportion will gradually increase. [0003] Facing the severe situation of energy shortage in our country, the governmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B111/34
CPCC04B28/144C04B2111/00482C04B2111/343C04B2201/50C04B16/0633C04B14/42C04B24/42C04B24/2623C04B24/383C04B24/14C04B24/06C04B2103/302
Inventor 彭家惠张建新瞿金东刘先锋朱聪
Owner CHONGQING JIANDA BUILDING MATERIAL
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