RAW MIX FOR PRODUCTION OF HIGH-STRENGTH CONCRETE Russian patent published in 2009 - IPC C04B28/04 C04B111/20 C04B111/27 

FIELD: construction.

SUBSTANCE: invention is related to composition of raw mix for production of high-strength concrete, which is intended for construction of high-storey buildings, mostly, high-rise buildings. Raw mix for production of high-strength concrete, which includes Portland cement, crushed stone, quartz sand, microsilica or finely ground quartz, superplasticiser based on polycarboxylate ester and water, contains granite crushed stone, as superplasticiser based on polycarboxylate ester - Glenium 51 or Glenium ACE 30 and additionally calcium formate and surface active alkali - sodium adipates at the following ratio of components per kg/m³ of concrete: Portland cement - 350-650, granite crushed stone - 900-1200, quartz sand - 600-800, microsilica or finely ground quartz - 7-130, water - 110-190, mentioned superplasticiser - 0.10-3.0 wt % of Portland cement, surface active alkali - 0.01-0.07 wt % of Portland cement, calcium formate - 0.5-3.0 wt % of Portland cement.

EFFECT: higher frost resistance and water permeability of concrete.

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