TY - JOUR AU - Fauzan, AU - Elsa Eka Putri, AU - Kavyen Albarqi, AU - Iskandar Genap Rani, AU - Zev Al Jauhari, PY - 2021/01/29 Y2 - 2024/03/28 TI - THE INFLUENCE OF STEEL FIBER WASTE TYRE ON HIGH STRENGTH CONCRETE CONTAINING PALM OIL FUEL ASH AND RICE HUSK ASH JF - GEOMATE Journal JA - INTERNATIONAL JOURNAL OF GEOMATE VL - 20 IS - 77 SE - Articles DO - UR - https://geomatejournal.com/geomate/article/view/325 SP - 84-91 AB - <p>High strength concrete (HSC) has high compressive strength, but low tensile and flexural<br>strength, toughness, low resistance to cracking, and brittle fracture characteristics. To enhance these<br>engineering properties, steel fiber can be used in the HSC. Steel fiber from waste tyres (SFWT) can be used<br>as an alternative steel fiber for HSC due to low cost of the material. It needs more study to explore deeply the<br>effect of SFWT on HSC containing Cement Replacement Materials (CRM). This paper presents an<br>experimental investigation on the effect of SFWT on high strength concrete containing palm oil fuel ash<br>(POFA) and rice husk ash (RHA). The contents of each CRM (POFA and RHA) on the HSC are 5% and<br>10% by weight of cement. The addition of SFWT in HSC containing POFA and RHA are 0%, 0.5%, 1.0%,<br>1.5%, and 2% by concrete volume. The 28-days compressive and tensile strengths are tested for all HSC<br>mixtures. The results show that the addition of SFWT on HSC containing POFA (HSCP) and RHA (HSCR)<br>reduce concrete workability but increase the mechanical properties of the concrete. More SFWT are added,<br>the higher compressive and tensile strength is obtained. The higher compressive and tensile strengths on each<br>HSCP and HSCR mixtures are observed at the addition of 2% SFWT with 5% content of POFA (HSCP 5%)<br>and RHA (HSCR 5%). For HSCP 5%, the addition of 2% SFWT improves the compressive and tensile<br>strengths up to 26.62% and 37.59%, respectively, while for HSCR 5%, it improves up to 21.60% and<br>23.34%, respectively.</p> ER -