Insulated Binding Mortar and Rendering Coat Mortar

Binding Mortar Rendering Coat Mortar Product IntroductionPolar Bear Brand CSA polystyrene board external walland thermal insulation adhesive cement mortar is a kind of powdery material that is precisely premixed by factory with special sulfate/aluminate cement, silicate cement, aggregate, and many kinds of additives. Mixed with water, the material can be made the adhesive cement mortar with high cohesive strength, mass rigidity and penetration resistance performance. Polar Bear Brand CSA polystyrene board external wall and thermal insulation rendering coat mortar is made up of the powdery material that is precisely premixed by factory with special sulfate/aluminate cement, silicate cement, aggregate, and many kinds of additives, and the modified latex. After stirring powdery material with latex, the rendering coat mortar can be made with high cohesive strength, low ratio of compressive strength to flexural strength, good flexibility, and mass rigidity and penetration resistance performance. Technical Index Technical indexes of polystyrene board external walland thermal insulation adhesive cement mortar Serial No. Items being Tested Standard Index Test Value 1 Tensile Strength of Cementation (with cement mortar): Mpa Original Strength ≥0.60 0.71 Waterproof ≥0.40 0.52 2 Tensile Strength of Cementation (with Polystyrene board): Mpa Original Strength ≥0.10 Destruction of Polystyrene Board 0.12 Destruction of Polystyrene Board Waterproof ≥0.10 Destruction of Polystyrene Board 0.10 Destruction of Polystyrene Board 3 Operation Time Available: Hour 1.2 4.0 2.0 Technical indexes of polystyrene board external walland thermal insulation rendering coat mortar Serial No. Items being Tested Standard Index Test Value 1 Tensile Strength of Cementation (with Polystyrene board): Mpa Original Strength ≥0.10 Destruction of Polystyrene Board 0.11 Destruction of Polystyrene Board Waterproof ≥0.10 Destruction of Polystyrene Board 0.10 Destruction of Polystyrene Board Freeze-Thaw Resistance ≥0.10 Destruction of Polystyrene Board 0.10 Destruction of Polystyrene Board 2 Flexibility (compressive strength/flexural strength) ≤3.0 2.7 3 Operation Time Available: Hour 1.5 4.0 2.0 Applicable Scope 1. Adherence of warming plate in external wall thermal-insulation system [between EPS/XPS and base course wall]. 2. Adherence of warning plate and fiberglass mesh. 3. Protective layer for mesh. Construction MethodRequirements and Disposal of Base Materials The conditions of base materials directly affect the adhesive quality of external wall & thermal insulation system. The surface of base materials shall be solid, leveled off, dry, without greasy stain, dust, pulverization and salt efflorescence. The flatness of the surface of base materials can be measured with level bar etc. For these places which are not flat and with a minimum of 1cm higher than the surface, it is necessary to make level with mortar beforehand, while the bulge with a maximum of 1cm higher than the surface as well as the loose part and dust can be eliminated with broad axe, wire brush, and hair brush.Mixing of Adhesive Cement Mortar 1. Weigh water at a ration (powdery material to water) of 1:0.17 0.18 (8.5-9 kg water for each bag of 50kgs powdery material) 2. Add the Polar Bear Brand external wall & thermal insulation adhesive cement mortar into the fixed quantity of water and stir it with hand motor stirrer for 5 minutes to even paste form, leave it still for 1-2 minute, then the motor can be used after restirring. Adherence of Polystyrene Board1. Two methods for plastering adhesive cement mortar to the Polystyrene board are available, Under the conditions of allowable height differences, usually the spot adherence method is adopted to manually plaster the mortar on the polystyrene board, and the plastering area must exceed 40 % of the board area. If the base materials are leveled off very well, serrate scraping method can be adopted to smear the mortar on the Polystyrene board. Firstly smear one layer mortar evenly on the board, and then use serrate scraper to comb it to strip form, and finally clear off the residual mortar at the edge of board. 2. Press the Polystyrene board plastered with adhesive cement mortar on the surface of wall and adjust it to close to the neighbor Polystyrene board. To press the board and promptly clear off the motor extruded from the edge can ensure there is no mortar in the joints between the neighbored boards.3. Make the board level off and stick up straight, and flatten it with wood board or plastic board. 4. The portrait joints of the board shall be interlaced, and the run-through arrangement is forbidden. Installation of Anchoring Nail of Polystyrene Board1. Usually anchoring nails can be installed one day after adhering Polystyrene boards. And for each square meter 6-8 nails are needed, respectively located at the cross or centre of board joints. 2. For new building, anchoring nails shall be used when the height of external wall & thermal insulation is over 8 meters; for reconstruction of old building, anchoring nails must be used. Surface polishing of Polystyrene Board For a leveled off system surface, the rough places in board joints can be polished with sand paper. Mixing and Stirring of Rendering Coat Mortar. Add CSA powdery material and modified latex into the container at a ratio of 1:0.20 and stir it for five minutes, lay it still for 1 minute, and then it can be used for thermal-insulation board adherence and coat.