Abstract
Proper design of mixing proportions is the key factor to appreciate the benefits and advantages of self-compacting concrete (SCC). Determining a proper water-to-powder ratio is a crucial step in designing SCC. Mini slump flow test of mortar, as recommended by the EFNARC, is popularly used to check the water-to-powder ratio in the design process. The dimensions of the EFNARC recommended cone is slightly different from the widely available ASTM C230 cone. This study is an attempt to find a correlation between the test results of these two cones. Using the same fresh mixtures, two sets of data were collected using both cones. The correlation factor was determined using these data and verified by theoretical calculation. A proper correlation will allow the use of ASTM cone in the design of SCC. As the ASTM recommended cone is commonly available in most concrete laboratories, its application in SCC related studies will reduce the need of fabrication of new equipment, as well as, using the same cone to test the slump flow of both conventional workability and self-compacting mortar will allow the experts to come up with simplified test procedures and guidelines for the fresh property of mortar for the whole workability range.
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Acknowledgements
The authors are grateful to Universiti Kebangsaan Malaysia for supporting this research through the UKM Impak Perdana Grant (DIP-2017-002).
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Sakir, S., Raman, S.N., Amrul Kaish, A.B.M., Mutalib, A.A. (2020). Calibration of ASTM C230 Cone for Measuring Flow Diameter of Self-flowing Mortar According to the EFNARC Recommendation. In: Mechtcherine, V., Khayat, K., Secrieru, E. (eds) Rheology and Processing of Construction Materials. RheoCon SCC 2019 2019. RILEM Bookseries, vol 23. Springer, Cham. https://doi.org/10.1007/978-3-030-22566-7_31
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DOI: https://doi.org/10.1007/978-3-030-22566-7_31
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