ST-118 self-leveling cement-based mortar manual I. Features: This product is mainly composed of high-grade cement, fine aggregate and a variety of rigid organic polymer additives admiration processing. Has a good flow pattern, high viscosity, strong bond, etc., can be applied to a variety of grassroots ground cushion material. Applications: Recommended for residential, office buildings, hospitals, shopping malls and other places ready Paving wood flooring, carpet, PVC rubber flooring substrate leveling process. Second, the technical indicators: compliance JC/T985-2005 standard technical indicators Third, the construction process: Primary treatment: 1, before the construction of grass-roots strength of concrete shall be ≥ C20, uneven places, cracks and holes should be pre-treated flat, then the base surface scattered debris cleared away, we must keep the surface hard, smooth and clean. 2, watered the grass wet concrete surface and ensure that the front layer of non-attached water pouring. 3, ordinary Portland cement in the construction of new concrete base to be leveling 21 days after construction, the construction of the new sulfur aluminate cement concrete base should be carried out after the completion of seven days before leveling construction. Material preparation: a small area or road construction, small electric mixer available in the bucket for mixing, stirring once every full package required materials; large-scale construction, the available high-speed mixer mixing mortar pumping method of construction . 2, mixing method: the amount of water or HGM-80 enhancement solution into the bucket, open mixer while stirring slowly add one bag leveling, mixing 4 ~ 5min, still for about 1min, once again stirring until evenly without group slurry can be. Cold case, use warm water (no more than 40 ℃) stirred. 3, the construction temperature should be above 5 ℃, preparation of a good self-leveling mortar should be used within 35min. Pouring and leveling construction: 1, self-leveling poured into the mixing well, evenly spread, with a special toothed mouth scraper control the thickness, the thickness of the product construction ≥ 3mm, once construction of the thickness 3 ~ 30mm, reference to the amount 1.6kg / m2/mm. 2, construction workers can be put into the construction ground spikes with teeth mouth scraper scraping the surface layer of mortar to eliminate dumping convergence at the injustice, and maintain the desired thickness. 3, with a deflated gently rolling roller to eliminate air bubbles generated when mixing. Fourth, conservation: under normal temperature conditions according to general mortar curing, high or low temperatures must be taken after initial hardening watering or cover wet sacks, mats and other measures to conserve one to three days. Severe traffic ground maintenance required 3 days before passage. V. Packaging and storage: 1, the standard packaging specifications for 20kg ± 0.5kg / bag. Store in a cool dry environment, avoid rain, moisture, shelf life of 12 months. 2, non-toxic, tasteless, non-polluting, non-dangerous goods, general cargo transport