PENINGKATAN KEKUATAN MELALUI PENAMBAHAN CANGKANG SAWIT PADA BETON RINGAN STRUKTURAL SEBAGAI AGREGAT KASAR
DOI:
https://doi.org/10.30606/aptk.v11i1.1688Keywords:
palm shell, lightweight concrete, compressive strength.Abstract
The availability of 2 million tons / year palm shell waste in Riau Province is a potential source for the manufacture of lightweight structural lightweight concrete and an alternative to natural coarse aggregate substitutes. The aim of the study was to determine the value of the planned concrete compressive strength of 21 MPa produced when the palm shell was used as coarse aggregate in the form of a test cylinder, then tested at 7, 14, 21 and 28 days of concrete. Based on the results of testing the compressive strength of structural lightweight concrete using palm shells as coarse aggregate substitutes shows that the average compressive strength at 7 days is 14, 29 MPa, 14 days of age is 17.04 MPa, age 21 days is 18.85 MPa, while the maximum compressive strength at 28 days is an average of 20.79 MPa. The overall compressive strength of lightweight concrete is close to the value of the concrete compressive strength of the 21 MPa plan.References
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