الفهرس 
RESEARCH SIGNIFICANCEOnly 14 pages are availabe for public view
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Abstract
Civil engineers are continuously looking for new and better construction materials to enhance both short and long term behavior of structures and elements. High Performance Concrete (HPC) is one such “new” material that has a major improvement over conventional concrete, but its behavior is still in the process of being defined. The term HPC is used to describe concretes that are made with carefully selected high quality ingredients,optimized mixture designs, and which are batched, mixed, placed,consolidated, and cured to the highest industry standards. Pervious researches indicated that the mix proportions can be adjusted to produce high compressive and tensile strength HPC with strain softening behavior.These enhanced properties make HPC considered as a promising construction material especially in shear-critical beams. Most of previous studies on HPC have focused on special concrete materials with characteristics that differ from those of conventional concrete at the material level. However, few experimental test results are available on the shear behaviour and capacity of HPC beams at the structural level. The shear behaviour of HPC beams is still poorly understood.