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Multifunctional fly ash plastering mortar

A technology for plastering mortar and fly ash, applied in the field of multi-functional fly ash plastering mortar, can solve the problems of easy cracking of anti-crack layer and decorative layer, many construction procedures, low construction efficiency, etc. Body load, the effect of reducing the wall load

Inactive Publication Date: 2011-06-15
徐昌彪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the different thermal expansion coefficients of the materials used in the leveling layer, insulation layer, anti-cracking layer and decorative layer, when the temperature difference is large, the insulation layer, anti-cracking layer and decorative layer are easy to crack and fall off; , insulation layer, anti-cracking layer and decorative layer four layers, many construction procedures, high cost, and each layer needs to wait for the upper layer to dry before proceeding, the construction efficiency is low

Method used

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  • Multifunctional fly ash plastering mortar

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1: Preparation of mortar for exterior walls.

[0020] (1) First prepare modified expanded perlite according to the following steps:

[0021] In view of the problems of ordinary expanded perlite being brittle during construction, poor waterproof performance and material design requirements, the following methods are used to modify ordinary expanded perlite to increase strength and waterproof:

[0022] (a) Raw material allocation: In consideration of thermal insulation requirements, No. 70 expanded perlite that meets the first-class and superior products is selected. Since the construction mortar requires compactness, three types of No. 70 expanded perlite with different diameters are used. The required diameter More than 2 mm accounts for 60-70% of the volume, 30-20% of the volume is 1-2 mm in diameter, and 10% of the expanded perlite powder is less than 1 mm in diameter.

[0023] (b) Modification treatment:

[0024] In view of the problems of ordinary expanded...

Embodiment 2

[0029] Example 2: Preparation of mortar for interior walls.

[0030] (1) First prepare modified expanded perlite according to Example 1, add 2 kilograms of silicone water repellent to 70 kilograms of water and be mixed with an aqueous solution, evenly spray on 1 cubic meter of expanded perlite, and add water-repellent-containing cement for 120 kilograms, add 8 kilograms of silane-based powders in every ton of cement, and all the other steps are with embodiment 1.

[0031] (2) mixed

[0032] Add 80 kg of fly ash, 100 kg of cement, 2 kg of concrete water reducer, 2 kg of fly ash active activator, and 3.5 kg of hydroxypropyl methylcellulose into the gravity-free mixer. After stirring evenly, add the step ( 1) 180 kilograms of modified expanded perlite obtained, then stirred evenly and packed into bags.

[0033] Compared with the outer wall, the inner wall has lower requirements on the strength of the plastered surface, but has stricter requirements on the thermal insulation eff...

Embodiment 3

[0036] Directly buy expanded perlite (trade name: hydrophobic expanded perlite bulk, produced by Shanghai Baoneng Lightweight Material Co., Ltd.) that has undergone hydrophobic modification and strength modification.

[0037] Add 120 kg of fly ash, 130 kg of cement, 4 kg of concrete water reducer, 4 kg of fly ash active activator, and 5 kg of hydroxypropyl methylcellulose into the gravity-free mixer. 140 kilograms of modified expanded perlite, then stir evenly and pack into bags.

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Abstract

The invention discloses multifunctional fly ash plastering mortar, which contains fly ash, cement, additives, modified expanded perlite and hydroxypropyl methyl cellulose, wherein the additives also include water reducing agent and fly ash activity exciting agent; and the mortar comprises the following components in percentage by weight: 15-30 percent of fly ash, 25-35 percent of cement, 0.5-1 percent of water reducing agent, 0.5-1 percent of fly ash activity exciting agent, 1-1.5 percent of hydroxypropyl methyl cellulose and 35-50 percent of modified expanded perlite. The multifunctional fly ash plastering mortar not only can meet various requirements of common plastering mortar, but also has heat insulation performance, thus, after the mortar is coated on a wall, a decorative layer is directly coated on the mortar, a heat insulation layer does not need to be coated separately, the construction procedure is reduced, the cost is saved, and the load of the wall is correspondingly lightened.

Description

technical field [0001] The invention relates to a construction mortar, in particular to a multifunctional fly ash plastering mortar. Background technique [0002] As we all know, the inside or outside of the wall must be coated with a leveling layer, an insulation layer, an anti-crack layer and a decorative layer to meet the country's mandatory requirements for buildings. The insulation layer is made of materials with low heat transfer coefficient, and is coated on the wall to provide thermal insulation for the building. There are many types of insulation layers, including polystyrene board insulation layer, granular cement mortar insulation layer, gypsum insulation board and inorganic material insulation slurry, etc. However, the current various wall insulation materials cannot completely solve the problem of wall insulation system It is prone to hollowing, falling off, cracking, poor waterproofing, difficult to control construction quality, and high cost. Moreover, most o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/18C04B24/38
CPCC04B28/02Y02W30/91C04B14/185C04B18/08C04B24/383C04B2103/10C04B2103/302
Inventor 徐昌彪
Owner 徐昌彪