ANALISIS KELAYAKAN SIFAT FISIK DAN MEKANIK KOMPOSIT GIPSUM BERPENGUAT SERAT ALAM SISAL SUMBAWA SEBAGAI PAPAN PLAFON
Journal: Tambora (Vol.3, No. 3)Publication Date: 2019-10-21
Authors : Asywendi Rukini;
Page : 20-23
Keywords : Komposit; serat sisal; gipsum; sifat fisik; sifat mekanik;
Abstract
The gypsy composite ceiling of the sisal fibre amplifier is a potential environmentally friendly alternative replacing the commercial gyssum without fiber or a gypsy sum reinforcing fiber synthesis. In this study, manufactured a gypsy composite ceiling of a Sumbawa sisal fiber with a faction composition of the volume of 65% of a gypsy, cement 29% and sisal fiber 6%. The direction of fiber is variated with four conditions namely continuous fibre (SC) fiber woven (SW), discontinuous fibre (SDC) and hybrid fiber (SH). As a comparison of the use of Gypsy board without fiber with a fraction of the volume of a gypsy 65% and cement 35%. Then carried out physical testing (density test and water absorption) and mechanical testing of broken forces (modulus of rupture/MOR) and bending strength (modulus of elasticity/MOE). The results of physical testing showed an increase in the the density of a gypsy board of the 1.17 g/cm3 to ± 1.71 g/cm3 after reinforced fiber and absorbent water ± 42.76% for all fiber board. For the mechanical properties of MOR and MOE the highest value is produced by specimen with a directional continuous fiber direction (SC) of 10.58 MPa and 3890.6 MPa. And the lowest is owned specimen with a random discontinuous fiber direction (SDC) of 5.05 MPa and 1530.2 MPa. However, the value of fracture and bending of the SDC specimen is still higher than the commercial gypsy board without fiber. Feasibility analysis is performed by comparing the physical and mechanical properties of JIS A 5417-1992 and ISO 8336-2017 standards.
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