Interpretation of aggregate volume fraction effects on fracture behavior of concrete

Burcu Akcay*, Ayda Safak Agar-Ozbek, Fikret Bayramov, Hakan Nuri Atahan, Cengiz Sengul, Mehmet Ali Tasdemir

*Bu çalışma için yazışmadan sorumlu yazar

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58 Atıf (Scopus)

Özet

Fracture process zone has a strong effect on fracture energy particularly for concretes with coarse aggregates. In order to demonstrate this effect, four groups of concrete mixtures with various aggregate volume fractions were designed. Three point bending tests were applied on beam specimens with a single size but different notch size to obtain the boundary effect model based fracture energy. The results were evaluated to determine the effect of both aggregate volume fraction and notch size on fracture energy of concretes. In addition, meso-mechanical relations based on toughening mechanisms were employed in determining the fracture energy of concrete. The fracture energies obtained from the meso-mechanical approach and the boundary effect model were compared and found to be in good agreement.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)437-443
Sayfa sayısı7
DergiConstruction and Building Materials
Hacim28
Basın numarası1
DOI'lar
Yayın durumuYayınlandı - Mar 2012

Finansman

The financial support of DPT (State Planning Organization, Project: 2002K120340) is greatly appreciated by the first and the sixth authors.

FinansörlerFinansör numarası
DPT
Devlet Planlama Örgütü2002K120340

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