ANALISA SIFAT MEKANIK BAMBU SETELAH PROSES PEREBUSAN

Abstract

This research aims to determine the effect of the boiling process on the mechanical properties of bamboo. This research was conducted on three types of bamboo, namely yellow bamboo (gigantchloa apus), Javanese bamboo (gigantchloa atter) and thorn bamboo (gigantchloa atroviolacea). A test was carried out to determine the water content in the sample. The sample was subjected to a boiling process by varying the length of boiling time, namely without boiling, 2 hours boiling, 4 hours boiling, 6 hours boiling, 8 hours boiling and 10 hours boiling. Next, mechanical tests are carried out, namely tensile tests and bending tests. Based on the results of data analysis, it was found that the tensile strength values for yellow bamboo and Javanese bamboo were the same at 8 hours of boiling, with a value of 6.47 kgf/mm" for yellow bamboo and 5.52 for Javanese bamboo. The tensile strength of thorn bamboo increased at 6 hours of boiling with a value of 6.36 kgf/mm. The bending strength value for yellow bamboo and Javanese bamboo is the same, namely increasing at 8 hours of boiling with a value of 20.1 kgf/mm for yellow bamboo and 15.0 kgf/mm. In Javanese bamboo, the bending strength of thorn bamboo increases after 10 hours of boiling with a value of 11.3 kgf/mm. The highest tensile strength and bending strength values are for the yellow bamboo (gigantochloa apus) with a boiling time of 8 hours, respectively. values of 6.47 kgf/mm and 20.1 kgf/mm. The results obtained were that the longer the boiling time, the greater the tensile and bending strength of the bamboo until it reached optimum strength