Abstract: Fracture toughness tests on large‐scale cubical concrete specimens, with maximum size aggregate ranging from 19–76 mm (0.75–3.0 in.), are conducted under laboratory conditions. The laboratory experiments are based on the ...

Abstract: Fracture properties of concrete used in dams are obtained from laboratory experiments of large wedge‐splitting specimens with heights of 31 cm (12 in.), 91 cm (36 in.), and 152 cm (60 in.). Various concrete mixes of 19 mm ...