Dry premix of a mortar for medium-thickness-layer bedding of large-size floor tiles, method of preparing such mortar and application thereof after preparing it by this method

摘要

Mortar contains binder additives and additives made from sealed stone and lightweight additives in an amount of 20-120 kg/t in the grain band of 0.5-2.5 mm. Preferred Features: The lightweight additives are selected from pumice, perlite , vermiculite or expanded clay. The sealed stone is quartz sand or limestone. The binder is cement or lime. The mortar preferably contains 350-450 kg Portland cement, 30-50 kg Rhine trass, 500-600 sand, 20-120 lightweight additive having a grain band of 0.5-2.50 mm, and 30-50 additives.