The compressive strength and the normalized compressive
strength of concretes are given in Figs. 4–6. The control concrete
(CT) combining with 100% PC was compared to the mixtures combining
with BA. The strength development of the CT concrete was
relatively high. The compressive strengths at the ages of 7, 28 and
90 days were 60.5, 65.6 and 75.2 MPa, respectively. Meanwhile, the
normalized compressive strengths of the concrete combined with
10BA and with 20BA (at the same period) were 102–107% and
101–104%. Both of them were higher than those of the CT concrete