Open AccessStrength of Modified Foam Concrete-Filled Hollow Section Using Fly Ash as Sand Replacement
Author(s) -
Nurul ‘Adilah Anati Murad,
Norashidah Abd Rahman,
Ahmad Hazim Ahmad Firdaus,
Siti Amirah Azra Khairuddin
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1200/1/012016
Subject(s) - fly ash , materials science , composite material , compressive strength , truss , section (typography) , structural engineering , engineering , advertising , business
Hollow sections for columns, beams and trusses have been used in the steel construction industry for a decade. Concrete-filled hollow section (CFHS) has been widely used due to its aesthetic efficiency and to improve the load-carrying capacity. However, the use of normal concrete as infilled in steel hollow section has increased the dead load of structures. A modified foam concrete filled hollow section using fly ash as sand replacement (FCFHS-FA) is proposed to reduce the structure’s dead weight. This study aims to determine the strength performance of FCFHS-FA structure by using two types of steel hollow section thickness and compare the strength between FCFHS and FCFHS-FA. Steel, preformed foam, and fly ash were used to increase the strength. Nine specimens were prepared and a compression test was conducted. The strength index was calculated to compare the strength of FCFHS with FCFHS-FA. Result shows that FCFHS-FA has a similar strength index compared with FCFHS.