In this study, the benefits of limestone powder (LP) and marble powder (MP) as partial replacement of Portland cement are established. Furthermore, LP and MP are used directly without attempting any additional processing in the production of selfcompacting concrete (SCC). The water to binder ratio is maintained at 0.33 for all mixtures. The examined properties include workability, compressive s...

This paper is the first part of general study started at Assiut University dealing with effects of mineral oil on reinforced concrete structures. This study focused on the impact of used engine oil on the compressive strength of concrete. Compressive strength of concrete cubes soaked in used mineral oil for six months were compared with that of oil-free concrete cubes. Five different concrete m...

Background: High density concrete is extensively used for efficient radiation attenuation in radiotherapy rooms and nuclear reactors. Over the past eight years, some efficient galena-based concrete samples for shielding X or gamma rays was produced. The goal of this study was to produce a novel high density concrete against neutron and photon radiations using tourmaline and galena. Materials an...