Oil palm shell lightweight concrete as a ductile material

• Main Authors: Shafigh, Payam, Mahmud, Hilmi, Jumaat, Mohd Zamin
• Format: Article
• Published: Elsevier 2012
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.um.edu.my/5856/; https://doi.org/10.1016/j.matdes.2011.12.003
• Institution: Universiti Malaya

Crushed large oil palm shell (OPS) was used as a coarse aggregate in four different concrete mixtures. The stress-strain behavior and modulus of elasticity of OPS concrete were investigated and compared to granite normal weight concrete (NWC) and expanded clay lightweight concrete (LWC). The stress-strain curve of the OPS concrete showed that this type of LWC, in contrast to many types of structural LWC, is a ductile material. The highest E value of about 18.4. GPa was achieved in this study, which is significantly higher than previous studies. It was found that the E value of crushed OPS LWC was approximately 53 of the control NWC, which is approximately twice that of the uncrushed OPS concrete reported in the literature.