Al-Qadisiyah University’s Master's Dissertation: On Lightweight Reinforced Concrete’s Behavior & Failure Modes
20
17-06-2021

A master's dissertation was discussed in the College of Engineering, University of Al-Qadisiyah investigated the behavior and failure patterns of lightweight reinforced concrete columns at high temperatures by the postgraduate student, Mrs. Faiza Hassan. The dissertation aimed at conducting an experimental and analytical study to identify the structural behavior and failure of concrete columns made of lightweight aggregate concrete (LWC) under central and non-central loads exposed to high temperatures. The dissertation reviewed casting and testing of sixteen reinforced concrete columns with a cross-sectional area (150 mm x 150 mm) and a total length of 1250 mm after subjecting them to temperatures ranging from 20 to 650 degrees Celsius with a concentrated and non-central load until failure. The dissertation highlighted that the design of all reinforced concrete columns according to the code of the American Concrete Institute ACI 318-2019. The dissertation demonstrated the change of the failure pattern of concrete columns when using LWC lightweight concrete instead of NWC from the bending failure pattern of NWRC columns to the bending stress of LWRC columns, in addition to that increasing the deflection ratio has a negative effect on the loading capacity Finishing of concrete columns.

Related titles

Communicate With the Ministry

Contact us for any inquiries about the services provided by the Ministry of Higher Education and Scientific Research