EFFECT OF POST-HARVEST WASTE BASED CELLULOSE ADDITION ON INDUSTRIAL WASTE BASED SOUND ABSORBING MATERIALS

• Main Author: Rizki Febiandi, Emilio
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50128
• Institution: Institut Teknologi Bandung

The noise problem is one of the negative impacts of today's technological developments in line with the development of the transportation industry and road construction. The development of sound absorbing materials continues to be carried out to overcome this problem and its development has begun to shift to environmentally friendly materials with utilizing waste. In this research, a porous material from a mixture of cement, gypsum, sludge waste from nickel refining industry and cellulose from post-harvest sugarcane waste was developed as a filler to improve sound absorption, compressive strength, and fire resistance properties. Cellulose is added to the mixture with variations of 0.5 grams; 0.75 grams; and 1 gram. After the sample is formed, then the impedance tube test is carried out, the compressive strength test, and the fire test. From the results of each test, the highest value of the mid-frequency sound absorption coefficient is in the sample with the addition of 1 gram of cellulose is 0.36 and on the high frequency is the sample with the addition of 0.75 grams of cellulose with the value of 0.37. The highest compressive strength was obtained in the sample with the addition of 0.5 gram cellulose with the value of 0.237 MPa and highest resistance to the fire is the sample with the addition of 1 gram of cellulose with a mass shrinkage of 25.31%.