Repo Dosen ULM

Utilization of Coconut Shell Ash as a Substitute Material in Paving Block Manufacturing

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dc.contributor.author Nurwidayati, Ratni
dc.contributor.author Azima, N. N.
dc.date.accessioned 2023-04-26T22:54:29Z
dc.date.available 2023-04-26T22:54:29Z
dc.date.issued 2022-03-30
dc.identifier.issn Online:1755-1315
dc.identifier.uri https://repo-dosen.ulm.ac.id//handle/123456789/29674
dc.description.abstract In this study, coconut shell ash (CSA) was used as a substitute for cement in the manufacture of paving blocks. The research aims to determine the CSA substitution effect on the mortar compressive strength. The replacement percentages were 0, 3, 5, 8, 10, and 12%. The immersed and wrapping with plastic were conducted as curing conditions. The mortar compressive strength was 24.97, 16.44, 15.26, 14.61, 14.25, 11.87 MPa for immersed curing at 28 days for 0, 3, 5, 8, 10, and 12%, respectively. While for wrapping plastic, the compressive strength was 21.97, 15.82, 15.10, 14.06, 13.21, and 12.62 MPa. Substitution of coconut shell ash reduced the compressive strength. Based on the optimum compressive strength of mortar, the paving block size of 20106 cm was made and then cut into 666 cm. The compressive strength was 13.21, 12.02, and 9.65 MPa at the 0, 3, and 5% CSA substitution. The water absorption indicated almost similar around 7% for all substitutions. There were no defects such as cracks found, and the different weights before and after immersed in sodium sulfate were 0.1 to 0.3%. en en_US
dc.language.iso en_US en_US
dc.publisher IOP Publishing Ltd en_US
dc.subject Coconut Shell Ash (CSA), Paving Block, Compressive strength, Cement Substitution, immersed en_US
dc.title Utilization of Coconut Shell Ash as a Substitute Material in Paving Block Manufacturing en_US
dc.type Article en_US


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