The influence of granite cuttingwaste on the properties of Ultra-High Performance Concrete

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Abstract

This study analyzes the effect of using waste by-products generated in the process of granite cutting as part of the granular structure of Ultra High Performance Concrete (UHPC). The manufactured concrete has a compressive strength greater than 115 MPa. This study substitutes 35%, 70% and 100% of the volume of micronized quartz powder (<40 μm) with granite cutting waste. This is an innovative study where the feasibility of using waste from granite quarries as a replacement for micronized quartz in UHPC has been analyzed. The results show an improvement in the workability and compressive strength of UHPC, for all substitution ratios. The flexural strength and tensile strength increase when the substitution ratio is 35%, and even the values obtained for 100% substitution are acceptable. In view of the results obtained in this study, granite cutting waste, instead of the micronized quartz powder usually used, is a viable alternative for the manufacture of expectedly more sustainable UHPC.

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Boadella, Í. L., Gayarre, F. L., González, J. S., Gómez-Soberón, J. M., Pérez, C. L. C., López, M. S., & de Brito, J. (2019). The influence of granite cuttingwaste on the properties of Ultra-High Performance Concrete. Materials, 12(4). https://doi.org/10.3390/ma12040634

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