Adiabatic Curing Method for Estimating 91-Day Strength in Structure with 150MPa Concrete

Specimens cured in several simple adiabatic containers were examined to estimate in-place strength in structures of 150 MPa concrete. It is shown that containers holding two rows of five specimens produce good results. These containers were used for control testing of actual building operations. Specimens cured in the adiabatic containers resulted in 91-day strength value comparable to those of cores taken from mock-up columns.