Abstract
This is an experimental study on characteristics of temperature record and concrete strength according to the use of large panel form with application of insulation form system to cold climate wall concrete work. For the study, it installed a refrigerated container for test in which internal temperature could be controlled for similar temperature environment with outside. 3 test pieces were assembled in the lab. One test piece was a general form and the other were insulated forms combined with molding extrusion polystyrene with vinyl and adhesive spray bond. General form test piece and one insulated test piece were heated by flood light inside the form, and the other piece did not install flood light. The temperature of the lab is between ${\dot{E}}$~ -15 ${\dot{E}}$ with daily fluctuation. It analyzed the expression characteristics of curing strength of concrete by age and temperature distribution per part. As a result, test piece II and III had an effect of preventing early aged freezing damage prevention compared with test piece I of tent curing and heat curing. It means the insulation form promotes blocks the influx of low outdoor temperature and utilizes heat of hydration for concrete curing temperature maintenance that promotes concrete strength expression.
