Behavior of Hybrid Concrete Beams Containing Two Types of High Strength Concrete (HSC) and Conventional Concrete

This paper is a port of a study experimental investigating the behavior of hybrid reinforced concrete beams using two types of high strength concrete (HSC). Twelve test beams with (100 X 200 X 1100) mm dimension have been divided into four groups, each of which consisted of three beams specimens sames in size and gross section but different in concrete type and steel bar. All beams were tested to failure under two point loading to investigate the structural behavior. experimental results show that the use of high strength concrete improves the beam capacity are increasing (10.41 % - 48.80) % with conventional concrete in compression. the use of hybride concrete increased the beam capacity (14.28 % - 42.30 %) % with conventional amerd in compression.