3. Compressive strength increased with SD utilization. High values
were reached at 10% SD amount. It is apparent that
series incorporating 10% SD and 1.3% superplasticizer had
high compressive strength. Strength values dropped as the
amount of superplasticizer increased. Although high compressive
strength values were obtained with 20% SD utilization,
in general, the level of strength didn’t go beyond that of
10% SD including series. At 20% SD utilization, increase in
compressive strength was observed with increasing superplasticizer
content due to better placeability. Regarding these results