KUAT LENTUR, TOUGHNESS, DAN STIFFNESS PADA BETON RINGANTEKNOLOGI FOAM DENGAN BAHAN TAMBAH SERAT ALUMINIUM

Abstract

Lightweight concrete foam technology obtained by adding foam agent (liquid foam) into the concrete mix. The primacy the use oflightweight concrete is to reduce the burden of the concrete itself is categorized as a dead load on the structure calculations. Lightweightconcrete can be planned to meet the same strength of normal concrete. The purpose of this study to determine the extent of the effect ofadding aluminium to fiber density, flexural strength, tougness and stiffness of lightweight foam concrete fiber aluminium. The methodused is an experimental method in the laboratory of the Sebelas Maret University. Flexural strength values mean the lightweightfoam concrete without fiber at 1.04 MPa, while the lightweight foam concrete fiber fiber percentage of aluminium with 0.25%, 0.5%and 1% respectively of 1.32 MPa; 1.62 MPa dan 1.08 MPa. Value of the average toughness of the lightweight foam concrete withoutfiber at 0.66 kNmm, while the lightweight foam concrete fiber fiber percentage of aluminium with 0.25%, 0.5% and 1% respectivelyof 0.91 kNmm; 1.14 kNmm dan 0.69 kNmm. Stiffness of lightweight concrete median percentage of fiber fibrous aluminium with0%, 0.25%, 0.5%, and 1% respectively - also is 5.04 kN/mm; 5.91 kN/mm; 7.24 kN/mm and 5.89 kN/mm.