Analisa Rekayasa Uji Mekanik Material Komposit Berpenguat Fly Ash Kelas C Batubara Subitumen Dari Pembangkit Listrik Tenaga Uap
Keywords:
epoxy resin, fly ash, MgO, hardness and wear testAbstract
Composite materials have advanced rapidly in technological developments because of their unique renewable qualities. The purpose of this study is to examine utilisation of fly ash waste as an environmentally friendly composite material, with the aim of reducing the adverse effect industrial waste and creating sustainable solutions. The analysis of the influence of the composition of fly ash reinforced shall be the objective of this research Class C sub-bituminous coal composites on hardness and wear resistance. The addition of reinforcing elements such as fly ash from coal combustion remnants can be carried out. Combining fly ash, magnesium oxide, and epoxy resin as the composite matrix, various composition variations were tested to create new materials with good hardness and wear resistance properties. The ANOVA analysis method was employed to examine the influence of these materials, revealing that the epoxy resin parameter has the highest influence, while MgO has the lowest. The testing results indicate that the composition with 30% fly ash, 50% epoxy resin, and 20% magnesium oxide exhibits the highest hardness value of 84 HRB, while the composition with 40% fly ash, 45% epoxy resin, and 15% magnesium oxide demonstrates the lowest hardness of 62.5 HRB. Wear resistance testing reveals the highest wear rate in the composition with 35% magnesium oxide, 65% epoxy resin, and 0% fly ash, with a value of 6.74 x 10-5 gr/mm2.minute, while the lowest wear rate occurs in the composition with 0% magnesium oxide, 30% epoxy resin, and 70% fly ash, with a value of 1.49 x 10-5 gr/mm2.minute. The results of these studies provide insight into the effects of composition on mechanical properties of fly ash-reinforced Class C sub-bituminous coal composites as renewable and environmentally friendly materials in addressing waste-related issues.
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