anti-crack mortar
Anti-crack mortar (anti-crack mortar), which is made of anti-crack agent made of polymer emulsion and admixture, cement and sand mixed with water in a certain proportion, can satisfy a certain deformation without cracking, and cooperate with the grid Cloth works better.
Construction method:
1. Remove dust, oil, and sundries from the wall to make the surface clean.
2. Preparation: Mortar powder: water = 1:0.3, mix evenly with a mortar mixer or a portable mixer.
3. Do point sticking or thin sticking on the wall, and press it tightly to achieve smoothness.
4. Application rate: 3-5kg/m2.
Construction process:
〈1〉Grass-roots treatment: The surface of the pasted insulation board should be as smooth as possible, clean and firm, and can be polished with coarse sandpaper if necessary. The insulation boards should be pressed tightly, and the possible gaps between the boards must be leveled with insulation surfaces and with rubber powder polystyrene particle insulation mortar.
Preparation of materials: Add water directly and stir for 5 minutes, stir well before use.
〈3〉Material construction: use a stainless steel plastering knife to plaster the anti-crack mortar on the insulation board, press the glass fiber mesh cloth into the warm plastering mortar and level it, the mesh cloth joints should overlap, and the overlapping width is The 10cm glass fiber cloth must be completely embedded, and the thickness of the fiber reinforced surface layer is about 2-5mm.
Adhesive Mortar
Adhesive mortar is made of cement, quartz sand, polymer cement and various additives through mechanical mixing. Adhesive mainly used for bonding insulation boards, also known as polymer insulation board bonding mortar. The adhesive mortar is compounded by high-quality modified special cement, various polymer materials and fillers through a unique process, which has good water retention and high bonding strength.
main feature:
One: It has a strong bonding effect with the base wall and insulation boards such as polystyrene boards.
Two: It is water-resistant, freeze-thaw resistant, and has good aging resistance.
Three: It is convenient for construction and is a very safe and reliable bonding material for thermal insulation systems.
Four: No slipping during construction. It has excellent weather resistance, impact resistance and crack resistance.
Construction method
One: Basic requirements: smooth, firm, dry and clean. The new plastering layer can be constructed after at least 14 days of hardening and drying (the flatness of the base layer is less than 2-5mm per square meter).
Two: Material preparation: add water according to the ratio of 25-30% of the weight of the material (the amount of water added can be adjusted according to the base layer and climate conditions), until the mixture is evenly mixed, and the mixture should be used up within 2 hours.
Three: The amount of bonded polystyrene board is 4-5 kg per square meter. According to the flatness of the wall, the polystyrene board is bonded by two methods: the whole surface bonding method or the spot frame method.
A: Whole surface bonding: suitable for flat bases with flatness requirements less than 5 mm per square meter. Apply the adhesive on the insulation board with a serrated plastering knife, and then stick the insulation board on the wall from bottom to top. The board surface is flat and the board seams are pressed tightly without gaps.
B: Point-and-frame bonding: It is suitable for uneven bases whose unevenness is less than 10 mm per square meter. Apply the adhesive evenly to the edge of the insulation board with a plastering knife, and then evenly distribute 6 bonding points on the board surface, and the thickness of the application depends on the flatness of the wall surface. Then glue the board to the wall as above.
Insulation mortar
Insulation mortar is a kind of pre-mixed dry powder mortar made of various light materials as aggregate, cement as cement, mixed with some modified additives, and mixed by the production enterprise. A building material used to construct the thermal insulation layer of the building surface. Inorganic thermal insulation mortar material thermal insulation system is fireproof and non-combustible. It can be widely used in dense residential buildings, public buildings, large public places, flammable and explosive places, and places with strict fire protection requirements. It can also be used as a fire barrier construction to improve building fire protection standards.
Features:
1. Inorganic thermal insulation mortar has excellent temperature stability and chemical stability: Inorganic thermal insulation mortar material insulation system is made of pure inorganic materials. Acid and alkali resistance, corrosion resistance, no cracking, no falling off, high stability, no aging problem, and the same lifespan as the building wall.
2. The construction is simple and the overall cost is low: the inorganic thermal insulation mortar material insulation system can be directly applied to the rough wall, and its construction method is the same as that of the cement mortar leveling layer. The machinery and tools used in this product are simple. The construction is convenient, and compared with other thermal insulation systems, it has the advantages of short construction period and easy quality control.
3. Wide range of application, preventing cold and heat bridges: Inorganic thermal insulation mortar material thermal insulation system is suitable for various wall base materials and thermal insulation of walls with complex shapes. Fully enclosed, no seams, no cavity, no hot and cold bridges. And not only for external wall insulation, but also for internal insulation of external walls, or both internal and external insulation of external walls, as well as roof insulation and geothermal insulation, providing certain flexibility for the design of energy-saving systems.
4. Environmental protection and pollution-free: Inorganic thermal insulation mortar material insulation system is non-toxic, tasteless, non-radioactive pollution, harmless to the environment and human body, and its large-scale promotion and use can use some industrial waste residues and low-grade building materials, which has good comprehensive utilization Environmental protection benefits.
5. High strength: The inorganic thermal insulation mortar material has high bonding strength between the thermal insulation system and the base layer, and is not easy to produce cracks and hollowing. This point has a certain technical advantage compared with all domestic insulation materials.
6. Good fire and flame retardant safety, users can rest assured: the insulation system of inorganic thermal insulation mortar material is fireproof and non-combustible. It can be widely used in dense residential buildings, public buildings, large public places, flammable and explosive places, and places with strict fire protection requirements. It can also be used as a fire barrier construction to improve building fire protection standards.
7. Good thermal performance: The heat storage performance of the thermal insulation system of inorganic thermal insulation mortar material is much higher than that of organic thermal insulation materials, which can be used for summer heat insulation in the south. At the same time, the thermal conductivity of the construction with sufficient thickness can reach below 0.07W/m.K, and the thermal conductivity can be easily adjusted to meet the needs of mechanical strength and actual use functions. It can be used in different occasions, such as the ground, ceiling and other occasions.
8. Good anti-mildew effect: it can prevent the energy conduction of the cold and heat bridge, and prevent the mildew spots caused by condensation in the room.
9. Good economy If the thermal insulation system of inorganic thermal insulation mortar material with appropriate formula is used to replace the traditional indoor and outdoor double-sided construction, the optimal solution of technical performance and economic performance can be achieved.
10. Enhanced dispersible rubber powder, inorganic gelling material, high-quality orthopedics and additives with functions of water retention, reinforcement, thixotropy, and crack resistance are pre-mixed and dry-mixed.
11. It has good adhesion to various insulation materials.
12. Good flexibility, water resistance, and weather resistance; low thermal conductivity, stable thermal insulation performance, high softening coefficient, freeze-thaw resistance, and aging resistance.
13. It is easy to operate by directly adding water on site; it has good air permeability and strong breathing function. It not only has a good waterproof function, but also can remove moisture from the insulation layer.
14. The comprehensive cost is low.
15. Excellent thermal insulation performance.
Construction method:
1. The surface of the base layer should be free of dust, oil and debris that affect the bonding performance.
2. In hot weather or when the base is dry, it can be wetted with water when the water absorption of the base is large, so that the base is wet inside and dry outside, and there is no clear water on the surface.
3. Stir the special interface agent for the insulation system according to the water-cement ratio of 1:4-5, scrape it on the base layer in batches, and pull it into a zigzag shape with a thickness of about 3mm, or spray it.
4. Stir the thermal insulation mortar into a slurry according to the rubber powder: polystyrene particles: water = 1:0.08:1, and it should be stirred evenly without powder.
5. Plaster the thermal insulation mortar according to the energy-saving requirements. It needs to be constructed in stages if it is more than 2cm, and the interval between two plasterings should be more than 24 hours. It can also be sprayed.
6. Spread the anti-cracking mortar on the thermal insulation mortar with a thickness of 2MM.
7. Hang the anti-alkali grid cloth on the anti-crack mortar
8. Finally, apply 2~3 MM thick anti-cracking mortar on the alkali-resistant grid cloth again
9. After the construction of the protective layer is completed, after 2-3 days of curing (depending on the temperature), the subsequent finishing layer construction can be carried out.
Post time: Nov-30-2022