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Source materials are mixture of Portland cement or alumina cement with graded high-silica sand, polymeric additives, surface-active substances, and pigments. Technology for construction of such floors is quite simple and highly productive. After mixing of basic composition with water we receive low-viscosity fluid mixture, which is to be applied to prepared and primed base, spreaded by special spreading knives until it achieves required thickness, and thoroughly rolled by spiked rollers in order to remove entrained air. Average thickness of cement-polymeric layer is 6-8 mm. In case it is necessary to make thicker layers (10-20 mm), basic composition can be filled with coarse graded high-silica sand. In case of placing on a weak base, in order to reduce the possibility of crack formation, cement-polymeric layer shall be reinforced with polypropylene fibres or with alkali-resistant fibreglass net.
Cement-polymeric floors are used during reconstruction of operating enterprises, when replacing of concrete is not practical or it very difficult. Using of cement-polymeric floors as independent coatings in premises with intensive mechanical loading, due to its insignificant thickness, is possible only with sufficiently strength of concrete base, on which they are placed.
Certain types of self-levelling cement-polymeric coatings on alumina cement as to their service properties surpass concrete with upper hardened layer (with the use of dry hardener based on quartz-sand filler).
In case of low and medium intensity of operation, it is possible to apply to cement-polymeric layer thin-coat epoxy or polyurethane finish, which will decorate the floor and increase its wear resistance and chemical resistance.
Use of shot-blast pre-treatment of concrete before applying of self-levelling cement-polymeric systems (though, as before applying of any polymeric ones) is obligatory.
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