METHOD FOR CONTROL OF HEAT TREATMENT OF CONCRETE AND REINFORCED CONCRETE PRODUCTS Russian patent published in 1995 - IPC

FIELD: construction. SUBSTANCE: method for control of heat treatment of concrete and reinforced concrete products includes setting of duration of heat treatment, rate of product temperature increase and decrease and the required strength of products at the end of heat treatment. Temperature is increased at rate not exceeding the maximum permissible with continuous determination of time remaining to the end of heat treatment. With consideration of the latter and current strength of product, the prognosticated strength is calculated and compared with the required strength at the end of heat treatment. Temperature increase is discontinued when prognosticated strength is reached but not less than the required one. The moment of beginning of temperature decrease is determined by the time lasting till the end of heat treatment and the time required for cooling. EFFECT: higher efficiency.