METHOD OF MANUFACTURE OF CONCRETE AND REINFORCED CONCRETE STRUCTURES AND ARTICLES Russian patent published in 2005 - IPC

FIELD: manufacture of building materials and concrete and reinforced concrete structures and articles; silicate and concrete resource saving technologies.

SUBSTANCE: proposed method includes preparation of composite complex binder containing cement, mineral additive, chemical additive C-3, mixing the binder and natural filler, molding, preliminary holding of structures and articles under normal conditions, heat and moisture treatment at temperature of isothermic heating of 85-95°C; used as mineral additive is ash and slag wastes or fly ash in the amount of 20% of cement mass; part of natural filler in the amount of 10-15% is replaced with ash and slag wastes; additive C-3 is used in the amount of 0.35% of cement mass; holding is continued for 1.5-2.0 h and heat and moisture treatment is performed according to specified mode; temperature rise is continued for 3 h; isothermic heating is continued for 9 h and reduction of temperature is continued for 3 h.

EFFECT: utilization of ash and slag wastes; enhanced ecological safety; reduced consumption of cement.

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