Akademik Veri Yönetim Sistemi
WASET, ICEEE 2010: ”International Conference on Environmental and Ecological Engineering, Rome, İtalya, 28 - 30 Nisan 2010
The effect of dry and water curing, cement type and
dosage on early age strength of pozzolan-cement concrete at hot
weather conditions are investigated. Besides relationships between
standard compressive strength at 28 days and early strengths attained
by accelerated curing evaluated in this paper. Cube concrete
specimens produced with three different types of cement; calcined
pozzolan cement, pozzolan cement, portland cement (CEM II/A-Q,
CEM II/B-P and CEM I respectively) in four different dosages of
200, 300, 400 and 500 kg/m3 were subjected to (1) cabinet curing
with 50% relative humidity (RH) at 35 οC, (2) warm water curing at
35 οC for 24 hours after mixing the concrete. At the end of curing and
on the 7 and 28th day, compressive strengths, determined. Effect of
cement type, dosage and hot weather conditions on early age strength
of dry and water cured concretes evaluated. Further more early
strength–28-day strength regression expressions have shown that it is
possible to estimate 28-day strength beforehand with reasonable
accuracy.