Complex Additives for Concrete Based on Substances of Organic and Mineral Nature

The production of concretes with a hard hardening rate is not feasible without the use modifying additives. development chemical industry has led to emergence large number additives different properties. Some increase frost and corrosion resistance, strength building materials, while others affect setting concrete water-cement ratio. Of greatest interest joint work in composition cement stone. paper analyzes determines effect various combinations (sodium carbonate Na 2 CO 3 , sodium chloride NaCl nitrate NaNO ) on structure formation properties stone as part complex additive using simplex-lattice experiment planning method. In course research, obtain stone, Portland M500 D0 been used addition established proportions. As result tests, it found that following proportions components are optimal: – 12–38 %; 34–54 26–42 %. With introduction this into mixture, positive dynamics have observed neutralizing reinforcement concrete, well an accelerated set hardness. results obtained can be at specialized enterprises industry, further research