iv
PEMBUATAN DAN KARAKTERISASI BATAKO RINGAN
MENGGUNAKAN ABU VULKANIK SINABUNG DAN SERAT BATANG PISANG DENGAN PEREKAT POLYESTER
ABSTRAK
Telah dilakukan penelitian pembuatan dan karakteristik batako adengan memanfaatkan : abu vulkanik, serat batang pisang, dan resin poliester sebagai material pengikat. Variasi komposisi yang dibuat dalam penelitian ini meliputi variasi serat batang pisang : 0,1,2,3,4,5, dan 6 gram dari berat total abu vulkanik yang digunakan dan resin poliester : 50 % dari total campuran abu vulkanik dan serat batang pisang. Besaran fisis dan mekankis yang dilakukan meliputi : densitas, daya serap air, porositas, kuat lentur, impak, dan kuat tarik. Nilai yang diberikan pada pengujian fisis dan mekanis meliputi : Densitas = 1,6127 - 1,5204 g/cm3, Daya Serap air = 0,253 – 2,181 % , Porositas = 0,408 – 3,520 %, dan sifat mekanis meliputi Kuat Impak = 3924 - 14.918 J/m2, Kuat Lentur = 9,424 - 31,048MPa, Kuat Tarik = 4,066 - 16,065 MPa. Penambahan serat cenderung menurunkan densitas dan meningkatkan nilai daya serap air, porositas, dan kuat tarik.
Kata kunci : batako ringan, abu vulkanik, serat batang pisang, poliester, sifat fisis, sifat mekanik
v
CHARACTERIZATION AND MAKING OF LIGHTWEIGHT
CONCRETE BLOCKUSING SINABUNG VOLCANIC ASH
ANDBANANARODS FIBER WITH ADHESIVE POLYESTER
ABSTRACT
The study have done in research and manufacturing of lightweight concrete block, using volcanic ash, banana rods fiber and polyester resin as binder material. Composition variations prepared for this study include variations of banana stem fiber: 0,1,2,3,4,5, and 6 grams with total weight of volcanic ash that is used and the polyester resin: 50% of the total mixture of volcanic ash and banana rods fiber. Physical and mechanics quantitiesperformed include: density, water absorption, porosity, flexural strength, impact and tensile strength. Density = 1.6127 to 1.5204 g / cm3, Absorption of water = 0.253 to 2.181%, porosity = 0.408 to 3.520%, and the mechanical properties include Strong Impact = 3924-14918 J / m2, Bending Strength = 9.424 - 31,048MPa , Strong Pull = 4.066 to 16.065 MPa.The addition of fiber tends to lower the density and increase the value of water absorption, porosity and tensile strength.
Keywords: lightweight concrete blocks, volcanic ash, banana rods fiber, polyester resin,physical properties, mechanical properties
