This research addresses the behavior of reinforced lightweight concrete (LWC) as an alternative to normal-weight concrete. LWC was obtained through the use of polystyrene foam as a partial aggregate’s replacement to reduce the concrete dry unit weight from 23.0 kN/m³ to 18.1 kN/m³. The study is conducted through experimental and analytical investigations to evaluate the behavior of LWC beams, slabs and columns.  The stress block parameters of the LWC was first evaluated experimentally from the stress strain relationship of the material.  These parameters were used in the proposed design methodology of the concrete members.

Research Team

1. Amr Ali Abdelrahman
2. Ahmed S. Essawy
3. Abdel-Wahab El-Ghandour

Related Journal Publication List

1. “Experimental and numerical investigation of the behavior of LWFC L-girders under combined torsion”, A.Deifalla, A.Awad, H. Seleem, And A. Abdelrahman, Structures, Elsevier, Volume 26, August 2020, Pages 362-377.
2. “Behavior of Lightweight Concrete Under Uniaxial Eccentric Compressive Stresses” Maged Tawfik, Sherif Elwan, Hosam Seleem and Amr Abdelrahman, International Journal of Civil Engineering & Technology (IJCIET), Volume 08, Issue 8, (Aug 2017).
3. "Structural Performance Of Self-Compacting Lightweight Reinforced Concrete Slabs", El-Ghandour, A., Zaher, A., Abdelrahman, A. & Sultan, R., Journal Of Engineering And Applied Science, Faculty Of Engineering, Cairo University, Vol. 57, Issue 6, December 2010, pp. 491 - 509.
4. “Flexural Behaviour And Design Of Self-Compacting Lightweight RC Beams”, Essawy, A. S., Abdelrahman, A., El-Ghandour, A. A. & Okail, H. O., Scientific Bulletin Of The Faculty Of Engineering, Ain Shams University, Part I: Architectural And Civil Engineering, Cairo, Egypt, 31 December 2006, Vol. 41, No. 4, pp. 37 – 60.