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Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars

1
Department of Civil Engineering, Marshall University, Huntington, WV 25755, USA
2
Department of Computer Sciences and Electrical Engineering, Marshall University, Huntington, WV 25755, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Theodore E. Simos
Symmetry 2021, 13(4), 619; https://doi.org/10.3390/sym13040619
Received: 16 March 2021 / Revised: 4 April 2021 / Accepted: 6 April 2021 / Published: 8 April 2021
(This article belongs to the Section Computer and Engineering Science and Symmetry)
In this paper, we performed an experiment with activated carbon manufactured from waste coffee grounds on the compressive strength of normal cement mortars. The activated carbon reinforcement was manufactured from waste coffee grounds, and the collected coffee grounds were then transformed into activated carbon granules through the physical activation process. The activated carbon/cement composites were prepared by mixing cement with activated carbon granules with the weight fractions of 0.5%, 1%, 1.5%, 5%, and 10% cement. The experimental results show that adding activated carbon up to 1.5 wt% increased the early strength of cement mortars. Furthermore, we found that the composites incorporated with a small amount of activated carbon (≤1.5 wt%) had higher compressive strength over the curing period than the normal cement without activated carbon. We believe that these results would potentially have commonalities with morphological symmetry phenomena that occur on the surfaces of activated carbon granules. View Full-Text
Keywords: mortar; blended cement; image analysis; characterization; scanning electron microscopy (SEM) mortar; blended cement; image analysis; characterization; scanning electron microscopy (SEM)
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MDPI and ACS Style

Na, S.; Lee, S.; Youn, S. Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars. Symmetry 2021, 13, 619. https://doi.org/10.3390/sym13040619

AMA Style

Na S, Lee S, Youn S. Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars. Symmetry. 2021; 13(4):619. https://doi.org/10.3390/sym13040619

Chicago/Turabian Style

Na, Sukjoon; Lee, Sanghoon; Youn, Sungmin. 2021. "Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars" Symmetry 13, no. 4: 619. https://doi.org/10.3390/sym13040619

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