Sis, HikmetKıyak, TufanFenerli, CenkGenç, Mehmet2022-03-162022-03-162019Çınar, M., Karpuzcu, M., & Çanakcı, H. (2019). Effect of waste marble powder and fly ash on the rheological characteristics of cement based grout. Civil Engineering Journal, 5(4), 777-788.978-605011273-3https://doi.org/10.29187/jscmt.2021.55https://hdl.handle.net/20.500.12899/662Coal fly-ash and marble powders are two environmentally important industrial waste materials that should be utilized. It is known that they are used as additives in concrete production for many years. In this study, the usability of fly-ash and marble powder in grout production was investigated. Flyash and marble powder utilized in the tests were obtained from Soma (Manisa) power plant and Akçadag (Malatya) region, respectively. Pozzalanic fly-ash and reactive marble powder were used in grout mixtures as partial replacement materials for cement and aggregate, respectively. Flow and strength properties of the grouts prepared at different water/cement ratios were tested and the effect of the additives were determined. Rheological properties of the mixtures were tested at a wide range of shear stress-shear rate by utilizing a rheometer. Additionally, the prepared mixtures were cast into moulds and the 28 day strength of the cubes were determined by uniaxial compression tests. Test results showed that the increasing water/cement ratio increased the fluidity the grout mixtures, but inversely affected the strength of hardened grouts. The results showed that addition of fly ash decreased the 28 days strength of hardened grout by improved the fluidity of fresh grout to some extend. On the other hand, marble powder decreased the fluidity of mixtures but increased the strength of hardened grout significantly. Copyright © IMCET 2019 International Mining Congress and Exhibition of Turkey. All rights reserved.eninfo:eu-repo/semantics/closedAccessCompressional strengthFly ashGroutMarble powderRheologyArticle10.29187/jscmt.2021.551649 -16572-s2.0-85167875335