Self-leveling floor mortar and preparation method thereof

Abstract

The invention relates to a self-leveling floor mortar and a preparation method thereof. The self-leveling floor mortar comprises the following components by weight percentage: 10-20% of cement, 6-12% of aluminous cement, 3-8% of alpha-semi-hydrated gypsum, 27-48.3% of quartz sand, 3-8% of fly ash, 0.01-0.05% of HPMC, 1-3% of latex powder, 0.015-0.05% of defoaming agents, 0.05-0.1% of coagulation accelerator, 0.01-0.35% of super-plasticizer, 0.05-0.1% of acyclic polyisocyanates, 0.05-0.1% of calcium aluminate expanding agent, 0.05-0.15% of polycarboxylic acids high efficiency water reducer powder, 0-0.3% of other additives. The self-leveling floor motar utilizes the waste coal ash; the motar has advantages of energy-saving, environment-friendly, endurable and wear resistance functions; the mortar has good fluidity and automatically and accurately levels to form a flat floor; a person can walk on the floor after 3-4 hours, and light transport can be allowable on the floor; the floor has a thickness of 2-5 mm, and hardly increase the elevation; the floor is reduced in materials and cost, has good adhesion and flatness, and hardly heaves; the mortar is harmless to human and has no radiation.

Description

technical field [0001] The invention relates to building materials, in particular to a self-leveling floor mortar and a preparation method thereof. Background technique [0002] Mortar refers to the bonding substance used in building bricks. It is composed of a certain proportion of sand and cementing materials (cement, lime paste, clay, etc.) and water. It is also called mortar and mortar. Mortar is made by mixing cementitious materials (cement, lime, clay, etc.) and fine aggregate (sand) with water. Commonly used are cement mortar, mixed mortar (or cement-lime mortar), lime mortar and clay mortar. Self-leveling mortar is a powder product that is uniformly mixed with inorganic gelling materials, aggregates, fillers, redispersible latex powder and a small amount of chemical additives through a certain production process. When in use, it has excellent fluidity after adding water and stirring it into a slurry. It can be poured by pumping, and it can be automatically leveled ...