@article{Fauzan_Oscar Fitrah Nur_Kavyen Albarqi_Annisa Prita Melinda_Zev Al Jauhari_2021, title={THE EFFECT OF WASTE TYRE RUBBER ON MECHANICAL PROPERTIES OF NORMAL CONCRETE AND FLY ASH CONCRETE}, volume={20}, url={https://geomatejournal.com/geomate/article/view/321}, abstractNote={<p>Waste tyre rubber is one of waste material, which is produced excessively worldwide every<br>year. The disposal of this rubber has a major problem in the environment as its decomposition takes a long<br>time and also produces environmental pollution. One of the alternative solutions is to use the scrap waste tyre<br>rubber as a partial replacement of natural aggregate in concrete. This paper presents the experimental study<br>on the effect of waste tyre rubber in the form of crumb rubber as a partial fine aggregate replacement on<br>normal and fly ash concrete. The content of fly ash in the fly ash concrete was 15 % by replacing the cement<br>weight. A total of 60 concrete cylinders were cast and tested to evaluate its compressive and splitting tensile<br>strength. The use of crumb rubber from the waste tyre in both normal concrete and FA concrete is 5%, 10%,<br>15%, and 20% based on fine aggregate volume. The results show that rubberized concrete has low<br>workability, compressive and tensile strengths but has greater crack resistance when compared with ordinary<br>concrete. The more percentage of crumb rubber on both the rubberized normal concrete (RNC) and the<br>rubberized fly ash concrete (RFAC) result in a higher decrease in compressive and tensile strengths of the<br>concrete. Compared to RNC, RFAC has a higher strength in each crumb rubber content due to the presence<br>of fly ash. From this study, it is recommended to use the crumb rubber as a fine aggregate replacement with<br>the maximum content of 10% and 15% on normal concrete and fly ash concrete, respectively.</p>}, number={77}, journal={GEOMATE Journal}, author={Fauzan and Oscar Fitrah Nur and Kavyen Albarqi and Annisa Prita Melinda and Zev Al Jauhari}, year={2021}, month={Jan.}, pages={55–61} }