Investigation of Structural Lightweight Concrete in terms of Energy Efficiency in Residential Buildings

Nayır S., Bahadır Ü., Erdoğdu Ş., Toğan V.

14th INTERNATIONAL CONGRESS ON ADVANCES IN CIVIL ENGINEERING (ACE 2020-21), İstanbul, Turkey, 6 - 08 September 2021, pp.247-254

  • Publication Type: Conference Paper / Full Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.247-254
  • Karadeniz Technical University Affiliated: Yes


In this study, the energy efficiency of structural lightweight concretes (SLWCs) used in residential buildings was evaluated compared to normal weight concrete (NWC). Initially, the compressive strengths, unit weights and thermal conductivity coefficients of the SLWCs and NWC produced were determined experimentally. The energy needs calculated were compared regarding each concrete mixture with the 3+1 reference flat. The monthly and annual heating and cooling loads of the flat were calculated for the different concrete types using the DesignBuilder energy simulation program. At the end of the study, it was found out that SLWCs provide energy savings ranging from approximately 26% to 30% compared to NWC. Thus, it has been determined that SLWCs increase the annually energy savings of buildings between 8126.69 kWh and 9248.44 kWh.