TY - JOUR N2 - This study investigates the use of steel fibers and hybrid composite with a total fibers content of 2% on the high strength flowing concrete and determines the density, compressive strength, static modulus of elasticity, flexural strength and toughness indices for the mixes. The results show that the inclusion of more than 0.5% of palm fibers in hybrid fibers mixes reduces the compressive strength. The hybrid fibers can be considered as a promising concept and the replacement of a portion of steel fibers with palm fibers can significantly reduce the density, enhance the flexural strength and toughness. The results also indicates that the use of hybrid fibers (1.5 steel fibers + 0.5% palm fibers) in specimens increases significantly the toughness indices and thus the use of hybrid fibers combinations in reinforced concrete would enhance their flexural toughness & rigidity and enhance their overall performances. L1 - http://www.czasopisma.pan.pl/Content/83771/mainfile.pdf L2 - http://www.czasopisma.pan.pl/Content/83771 PY - 2011 IS - No 3 EP - 260 KW - Hybrid fibers KW - high strength flowing concrete A1 - Dawood, Eethar Thanon A1 - Ramli, Mahyuddin PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES DA - 30.09.2011 T1 - Influence of hybrid fibers on toughtness behavior of high flowing concrete SP - 249 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/83771 T2 - Archives of Civil Engineering ER -