Anti crack mortar

Anti cracking material

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Anti crack mortar, made of polymer emulsion and admixture Anti cracking agent Cement and sand shall be mixed with water in a certain proportion to make mortar that can meet certain deformation without cracking.

Chinese name: Anti crack mortar
Foreign name: anti-crack mortar

Executive standards: JG/T158-2013
Scope of application: External insulation or internal insulation layer of external wall

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seven matters needing attention

Product performance

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This product is a new type of anti cracking material, which has solved the problem Architecture A big problem of - light weight Insulation layer Facial fissure It is a high-quality environmental protection material with high tensile strength, easy construction and freezing resistance. It can be widely used in the interior and exterior walls of various buildings.

performance parameter

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Test items	Company	index
Operable time	h	≥1.5
Tensile bond strength within operating time	mpa	≥0.7
Tensile bond strength (28d at room temperature)	mpa	≥0.7
Tensile bond strength after immersion in water (28d at normal temperature, 7d after immersion in water, 7d at normal temperature)	mpa	≥0.5
Discount ratio	/	≤3.0

Executive standards

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《 External thermal insulation system of exterior wall with rubber powder polystyrene particles 》JG/T158-2013

Scope of application

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Mainly used for External insulation of external wall Or internal insulation layer, Polystyrene board 、 Plastic extruded board The cover of the outer layer.

Construction method

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1. Remove the dust, oil stain and sundries on the wall to make the surface clean.

2. Preparation: mortar powder: water=1:0.3 Mortar mixer Or use a portable mixer to mix evenly.

3. Dot bonding or thin bonding can be done on the wall and pressed to achieve flatness.

4. Application rate: 3-5 kg/m2.

construction technology

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〈1〉 Base treatment : Pasted Insulation board The surface shall be as flat, clean and solid as possible, and can be used when necessary Coarse sandpaper polish. The insulation boards shall be pressed tightly, and the possible board joints must be used for insulation surface Rubber powder polyphenyl granule thermal insulation mortar Leveling.

(2) Material preparation: add water directly and stir for 5 minutes, and use after stirring evenly.

(3) Material construction: stainless steel Plaster the anti crack mortar onto the insulation board Glass fiber gridding cloth Press in temperature plastering mortar And leveling, Mesh fabric The joints shall overlap with a width of 10cm Glass fiber cloth Must be completely buried, Fiber reinforced Surface course The thickness is about 2-5mm.

matters needing attention

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1. On site construction of crack resistant mortar does not need to add any admixture, and the water solid ratio and plastering time are strictly controlled.

2. Base course Water absorption The strong or excessively dry surface of the base course shall be painted with a primer or sprayed with a small amount of water for wetting before construction.

3、 Transportation process Attention shall be paid to damp proof, rain proof and sun proof.

4. During storage, anti crack mortar shall be stored in a dry and ventilated place to avoid moisture.

5. When using the anti crack mortar, do not mix too much at one time, depending on the construction amount. If the mortar is caked before it is used up, it cannot be used any more.

6. Construction and Storage temperature It is required to be above 5 ℃.

7. After each construction, the construction tools and mixing equipment shall be cleaned in time to avoid affecting the next use.

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