Effect of steel fibers on the mechanical properties of natural lightweight aggregate concrete

DÜZGÜN O. A., Gül R., AYDIN A. C.

MATERIALS LETTERS, cilt.59, sa.27, ss.3357-3363, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 59 Sayı: 27
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.matlet.2005.05.071
  • Dergi Adı: MATERIALS LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3357-3363
  • Anahtar Kelimeler: lightweight aggregate concrete, steel fiber reinforced concrete, mechanical properties, HIGH-STRENGTH, REINFORCED-CONCRETE, COMPRESSIVE STRENGTH
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this study, the effect of steel fibers on the mechanical properties of pumice aggregate concrete was investigated. In order to determine the effect of steel fiber ratio on the mechanical properties of concrete, (1) 25%, 50%, 75%, and 100% pumice ratios were used instead of natural aggregate by volume, (2) 0.5%, 1.0%, and 1.5% steel fiber ratios were used by volume of the sample and (3) also, 300 kg/m(3) cement dosage and 3 +/- 0.5 cm slump were used. The test results showed that the increasing pumice aggregate ratio decreased the unit weight and the mechanical properties of the concretes. When compared to the control sample that contains no fiber, with the increase of steel fiber ratio in the mixtures unit weight, compressive strength, splitting-tensile strength and flexural strength of concretes increased up to 8.5%, 21.1%, 61.2% and 120.2%, respectively. Moduli of elasticity and deformation capability were decreased with increase of pumice aggregate and steel fiber ratio in the mixture. (C) 2005 Elsevier B.V. All rights reserved.