Analisis Pengaruh Penambahan Serat Tandan Kosong Kelapa Sawit terhadap Sifat Mekanik Mortar Geopolimer Tanah Liat
DOI:
https://doi.org/10.52072/unitek.v17i2.1067Kata Kunci:
Geopolymer Mortar, Clay, Palm Oil Empty BunchesAbstrak
With the rapid development of technology, the concrete industry continues to innovate. One effort to produce high quality concrete is by adding alternative ingredients to the concrete mixture. Alternative materials are unused waste that can be recycled to be used in concrete mixtures. The problem that is currently occurring is that there is a lot of by-product waste in palm oil mills that is not being handled optimally, namely Empty Palm Oil Bunches (TKKS) so that with this problem it can be used as a mixture for making concrete or mortar. This research aims to measure the effect of variations in the addition of Palm Oil Empty Bunches Fiber (TKKS) on the compressive strength value of geopolymer clay concrete mortar. The research method used was experimental with variations in composition (TKKS) and fine aggregate of 1:2. The alkali activator used was Na2SiO3 and NaOH with a ratio of 1:1 and a molarity of 12 M. Compressive strength testing was carried out at the age of the specimens at 3, 7, 14, 21 and 28 days. The results showed that the optimum compressive strength was achieved at the age of 28 days with variations the addition of 0.5% fiber is 4.13 Mpa. Variations in fiber addition of 0.8% and 1% produce compressive strengths of 3.60 Mpa and 3.47 Mpa respectively. Based on the research results, it can be concluded that there is a negative correlation between the addition of TKKS and the compressive strength of geopolymer mortar. This decrease in compressive strength is thought to be caused by a decrease in mortar density due to voids formed due to fiber shrinkage.
Unduhan
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