Table 7 Efficiency factor of SF and FA in concrete using ternary blend cement system.

Days

A ₁

A ₂

k _SF

k _FA

k _TB

$k_{\text{SF}}^{\prime }=k_{\text{TB}}\ast k_{\mathrm{SF}}$

$k_{\text{FA}}^{\prime }=k_{\text{TB}}\ast k_{\text{FA}}$