Dry Pack mixtures for modern construction

Modern construction industry is characterized by more wide application of dry pack mixes, accurately batched and mixed in plant conditions mortars and concrete mixes, with adding water at building site. At construction work effectiveness of dry pack mixes is demonstrated in high level of mechanization, significant reduction of construction terms, decreasing labour content and working costs, providing high quality.

Dry pack mixes are classified by:
- main purpose (type of work);
- type of binder in the mixture;
- modification level of the mixture by admixtures;
- the most significant feature in hardened state;
- conditions of application.

There are identified different mixes by purpose: masonry, facing, jointing, stopping, plastering, gluing, sealing mixes etc.; by type of basic binder –gypsum, anhydrate, lime, magnesium, cement, cement-lime, polymer etc.; by modification level – cost-effective, standard, high-quality; by characteristic feature in hardened state - adhesive, weather-proof, fast-hardening, waterproof, frostproof, high-strength, self-leveling, elastic etc.; by application conditions – hand and machine coating, for porous materials etc. The same mix can be often used at different construction. Adjustment of technological and performance properties of dry pack mixes is reached by adding different chemical admixtures Thickening, dispersing, foaming, defoaming, water-repelling, conservative agents etc. are included into the complex of special chemical admixtures.