4. Conclusions
This research focused on the compressive strength and drying shrinkage of multi-blended cement mortars under different curing conditions.
From this research, the compressive strength of blended cement with FA and BA (ternary blended cement) under different curing conditions contributed to a lower compressive strength than that of PC control.
However, the compressive strength of blended cement containing SF (both of ternary and quaternary blended cement) increased with increasing SF content.
Particularly, blended cement with containing SF 10% by weight cured in a plastic seal, water at 25, 40 and 60 C show higher compressive strength than PC control at early age.
In addition, the compressive strength of all mixtures increased with increasing curing temperature.
The drying shrinkages of all blended cement mortars containing pozzolanic materials cured in air were lower than that of PC control.
For plastics sealed curing, blended cement mortars containing FA and BA had lower drying shrinkage than that of PC control while drying shrinkage of ternary and quaternary containing SF were higher than PC control and increased with increasing SF level used.
For specimens cured in water at 25 C, the drying shrinkages of binary and ternary blended cement mortars containing FA, BA and incorporating SF at 5% by weight were lower than PC control.
Moreover, blended cement mortars containing SF at 10% by weight show higher drying shrinkage than PC control.
However, the drying shrinkages of all blended cement mortars cured in water at 60 C were lower than that of PC control.