Figure 2.
SEM micrographs of expanded glass fraction: (a)–(b) 0.125–0.250 mm; (c) 0.25–0.50 mm; (d) 0.5–1 mm; (e) 1–2 mm; (f) river sand fraction 2–4 mm; (g) crushed glass fraction 0.25–0.50 mm; (h) 0.5–1 mm; (i) 1–2 mm.
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