Construction tools: plastering tools including mixer, plastering bucket, hand cart, steel trowel, screed bar, wooden trowel, etc., as well as theodolite and setting-out tools.
Base surface treatment: Before construction, remove floating dust on the wall and the release agent after concrete demolding. The base surface for thermal insulation construction shall be clean and solid. If the wall release agent is not easy to remove, interface treatment is required to prevent unstable bonding caused by smooth demolding surface.
Before construction, it is necessary to plumb vertical lines, snap thickness control lines, and set proper thickness reference points.
Ingredients: For 1kg vitrified micro-bead thermal insulation mortar, the added water amount is approximately 0.85-1kg. Add the specified amount of water and stir well, then add the vitrified micro-bead thermal insulation mortar and stir until it becomes a uniform paste, then it can be used. The thermal insulation mortar must be mixed and used immediately.
Scrape and wipe vitrified microbead thermal insulation mortar. According to the construction thickness, the operation shall be carried out in layers, and the scraping thickness each time shall not be less than 1cm. The force shall be uniform, and shall be lighter than when plastering cement mortar. The slurry shall uniformly and densely cover the wall surface. After the first layer hardens, the second plastering can be carried out. After plastering to the specified thickness, scrape it flat with a screed bar, then rub and plaster it again with a wooden trowel, so that the surface of the mortar is flat and dense.
Scrape and trowel special surface anti-cracking mortar for surface covering. When carrying out this process, it must be carried out after the glass microbead thermal insulation mortar is completely cured. Surface anti-cracking mortar has excellent crack resistance and certain flexibility, it is specially designed for glass microbead thermal insulation mortar, which is conducive to improving and protecting the comprehensive performance of glass microbead thermal insulation mortar, it is a matching material proportioned for glass microbead thermal insulation mortar, it is particularly important in the entire thermal insulation mortar. The scraping and troweling thickness should preferably be thin, generally not exceeding 2mm.
Vitrified microbead thermal insulation mortar and anti-crack rendering mortar form a complete thermal insulation mortar system. In particular, anti-crack rendering mortar cannot be replaced by cement mortar with glue added for rendering.
Mechanical stirring shall be used, and the water-cement ratio and plastering time shall be strictly controlled. The finished wall shall be protected from impact by hard objects, keep the room ventilated and dry, and pay attention to anti-freezing during winter construction.
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