|
Title |
Investigation on the Method of Evaluating the Resistance to Freezing and Thawing of Concrete Subjected Initial Frost Damage
|
|
Keywords |
resistance to freezing and thawing; rapid freezing and thawing test; slow freezing an thawing test; water-keeping test; dynamic modulus of elasticity |
|
Abstract |
In concrete incorporating high volume ground granulated blast-furnace slag that has frozen at early age, to evaluated the results of resistance to freezing and thawing is very difficult because the hydration of the concrete increases over the duration of rapid freezing and thawing test. Hence, the dynamic modulus of elasticity of specimens after freezing and thawing will be favorable results unless the hydration effect is taken into consideration. In this study, a method of evaluating to the resistance to freezing and thawing of concrete subjected freezing at early age, in which the effect of hydration is modified for its increase during rapid freezing and thawing test, is investigated.
|