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: The following fracture models are assessed on the basis of an extensive testing program of large wedge‐splitting specimens: Bažant's size effect law; Hil‐lerborg's fictitious crack model; Carpinteri's brittleness model; ...

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 ...