2. From the viewpoint of superplasticizer utilization, 1.3% admixture
content seems not to be sufficient in mixtures.
Relatively better results are obtained in 10% SD including
series while in 20% SD including series 1.3% admixture
content was inadequate. On the other hand, 1.7% admixture
content exceeds the required amount of the mixture.
Saturation point of the mixture was obtained through the use
of 1.5% admixture. Beyond the saturation point segregation
problem arose, and below the saturation point it became
difficult to gain favorable consistency.