Research Article

Experimental Investigation and Theoretical Modeling of Nanosilica Activity in Concrete

Figure 2

Evaluation of calcium hydroxide contents.
102392.fig.002a
(a) OPC paste with water-to-cement ratio 0.5
102392.fig.002b
(b) OPC paste with water-to-cement ratio 0.3
102392.fig.002c
(c) OPC-nanosilica paste with water-to-binder ratio 0.5 and 3% nanosilica
102392.fig.002d
(d) OPC-nanosilica paste with water-to-binder ratio 0.3 and 3% nanosilica
102392.fig.002e
(e) OPC-nanosilica paste with water-to-binder ratio 0.5 and 6% nanosilica
102392.fig.002f
(f) OPC-nanosilica paste with water-to-binder ratio 0.3 and 6% nanosilica