CONCRETE WITH LOW CONTENT OF CEMENT Russian patent published in 2011 - IPC C04B28/04 C04B7/02 C04B7/153 

FIELD: chemistry.

SUBSTANCE: invention relates to mortar and more specifically to concrete with low content of cement, as well as methods of making said concrete. The mixture contains the following in the given weight ratio: 0.4-4% materials with ultrafine particles; 1-6% portland cement; 8-25% materials with fine particles; 25-50% materials with average particle size; 25-55% materials with coarse particles. The binder premix contains portland cement in weight ratio of less than 50%, fine particles which include particles in which D10 and D90 ranges from 1 to 100 mcm, ultrafine particles which include particles with D90 less than 1 mcm. Other versions of the invention describe compositions, objects, as well as methods of preparing the composition using said mixtures. The invention is developed in subclaims.

EFFECT: low cement consumption while preserving properties of the concrete.

37 cl, 6 dwg, 2 tbl, 6 ex