Pengaruh Penambahan Serat Sabut Kelapa (Cocofiber) Terhadap Campuran Beton Sebagai Peredam Suara (Penelitian)

Abstract

Concern for the environment can be realized with the use of materials derived from natural fibers as a form of energy conservation and environmental protection. For example, coconut coir fiber (cocofiber), Fiber Coconut is one of the waste that has not been fully utilized so in Indonesia. Though the amount of capacity coco fiber produced from coconut harvest each year in Indonesia is quite large. With the above reasons it is necessary to develop the use of natural fibers are widely available in Indonesia, in order not to waste that is thrown away. One of the technologies in use waste coconut husks are to be made of coco fiber composite materials is to make fibrous concrete coco. Therefore, it is necessary to do research on the parameters which affect the characteristics of this fiber-reinforced concrete. Study of the acoustic characteristics of the fiber-reinforced concrete have already been done, but it refers from the previous studies, suggest researching coco fiber for concrete mixes with the percentage of fiber that is used is not the same as the percentage that has been used before, it is necessary to re-research / advanced. Acoustic characteristics obtained by acoustic testing by using an impedance tube. In this test the absorption coefficient can be obtained by using the impedance tube supporting software that vactory DAQ and control HQ