NEW TYPE OF LIGHTWEIGHT AGGREGATE FOR USE IN STRUCTURAL CONCRETE

Authors

Jamal Khatib, Professor, Faculty of Engineering, Beirut Arab University, LebanonFollow
Ali Jahami, Assistant Professor, Faculty of Engineering, Beirut Arab University, LebanonFollow
Oussama Baalbaki, Professor, Faculty of Engineering, Beirut Arab University, Beirut, LebanonFollow
Adel Elkordi, Professor, Faculty of Engineering, Beirut Arab University, LebanonFollow

Keywords

Bottom ash, Concrete, Lightweight Aggregate, Sustainability, Structural Performance

Disciplines

Structural Engineering | Structural Materials

Abstract

This research studied the utilization of municipal solid waste incineration bottom ash (MSWI-BA) in lightweight coarse aggregate (LWC) production. A special method was followed to prepare the new aggregate to fully replace the normal aggregates (NWA) in concrete. The mechanical properties such as compressive strength, tensile strength, and elasticity modulus were investigated for the LWC concrete. Then, two beams were prepared; one from LWC and the other from NWC. The structural performance of beams made up of lightweight aggregates compared to normal aggregates was investigated. The results showed that this type of aggregates led to a 20% reduction in concrete density. There was a decrease in compressive strength, tensile strength, and elasticity modulus when using lightweight aggregates. In addition, there was a reduction in the structural performance of the NWC beam was better than the LWC beam

Recommended Citation

Khatib, Jamal; Jahami, Ali; Baalbaki, Oussama; and Elkordi, Adel (2021) "NEW TYPE OF LIGHTWEIGHT AGGREGATE FOR USE IN STRUCTURAL CONCRETE," BAU Journal - Science and Technology: Vol. 3: Iss. 1, Article 1.
DOI: https://doi.org/10.54729/2959-331X.1069

ISSN

2959-331X