INVESTIGATION OF HEAT CONCRETE FRAMEWORK STRUCTURES BUTT ZONES IN SHUTTERING WITH HEATING ELEMENTS
The main methods to accelerate hardening of concrete under winter concreting are considered. The thermosetting formwork with automatic controlled heat treatment process of the concrete are offered. Using of automatic program control heat treatment process in concrete formwork thermo possible to reduce the specific energy consumption for heating 1 m3 of concrete at 15–38 % is established. In comparison with the first generations of thermosetting formwork, energy efficiency is achieved by a more uniform heating, process control automation, accounting and high exotherm concrete form panels heat heating. Isothermal heating temperature over the cross section of the column joint heated 400×400 mm varied within ±2 °C, which indicates that providing a uniform distribution of heat in the concrete structure is established.