ANALISIS KEKUATAN LENTUR DAN KEKUATAN TEKAN BALOK LAMINASI BAMBU PETUNG (Dendrocalamus asper) DAN SERAT KELAPA SEBAGAI KOMPONEN KONSTRUKSI KAPAL

Abstract

Laminated beams are formed from two or more materials that have different properties. Bamboo laminate is one solution to develop a material to have a better structure. The purpose of this study was to determine the effect of the direction of the bamboo laminate on the flexural strength and compressive strength of the bamboo laminated. The method used is an experimental test by testing the flexural and compressive strength. The beam test refers to SNI 03-3958-1995 and SNI 03-3959-1995. The laminated beam to be tested has a moisture content value below 13% in accordance with the test provisions and has specific gravity between 0.58-0.69 g/cm 3 . Laminated beams with a cross direction variation of (cid:19)(cid:219)(cid:18)(cid:28)(cid:19)(cid:219) have flexural strength of 74.44 MPa and compressive strength of 53.36 MPa. Laminate with a cross direction variation of + (cid:23)(cid:24)(cid:219)(cid:18) - (cid:23)(cid:24)(cid:219) has flexural strength value of 55.34 MPa and compressive strength of 65.57 MPa. The variation of the cross direction (cid:19)(cid:219)(cid:18)(cid:28)(cid:19)(cid:219) directional arrangement has better flexural strength than the (cid:14)(cid:23)(cid:24)(cid:219)(cid:18) - (cid:23)(cid:24)(cid:219) variation, while for the compression test, the (cid:14)(cid:23)(cid:24)(cid:219)(cid:18) - (cid:23)(cid:24)(cid:219) directional arrangement variation has greater test results. The results of the compressive and flexural tests for both variations belong to different Indonesian Classification Bureau (BKI) strength classes, which cross-variation (cid:19)(cid:219)(cid:18)(cid:28)(cid:19)(cid:219) is classified in strength class II for flexural testing and strength class II for compressive testing, while cross variation (cid:14)(cid:23)(cid:24)(cid:219)(cid:18) - (cid:23)(cid:24)(cid:219) is classified in strength class III for flexural testing and strength class I for compressive testing.