COMPOSITION OF SELF LEVELLING OF CEMENT

摘要

The cement mortar composition improves fluidity to increase its self-levelling property required for floor construction. The composition comprises three constituents: a) a subcomposition including cement 100 wt.parts containing less than 10 wt.% of grains in size of less than 5 micro meter, inactive lime powder 5-50 wt.parts containing less than 10 wt.% grains of 44 micro meter, and aggregates 100-200 wt.parts containing less than 5 wt.% of grains in size of less than 0.3 mm diameter; b) a subcomposition including a mixture 2-10 wt.parts of a dispersant, a preservative, vinyl acetate polymer, a bubble remover, and an expansion agent; c) a subcomposition including 0.02-3.0 wt.parts of denatured starch condensate.