Fig. 4
From: Effects of low calcium bentonite on the strength development of recycled aggregate concrete
Contour plots modeling the compressive strength development of the concrete mixtures at (a) 3 days, (b) 7 days, (c) 14 days, (d) 28 days, (e) 50 days, and (f) 90 days. (a) 3 days, (b) 7 days, (interpolated), (c) 14 days, (interpolated), (d) 28 days, (e) 50 days, (interpolated), (f) 90 days.
