Testing the Compressive Strength of Concrete with the Addition of Coconut Shell Waste

The purpose of this study was to (1) analyze the characteristics of fresh concrete with the addition of coconut shell waste (2) to analyze the compressive strength of concrete with the addition of coconut shell. The research location for making concrete was carried out at the Laboratory of the construction of the water resources and community development department of the Southeast Sulawesi provincial government. There were 24 specimens printed in the form of a cylinder with dimensions of 30cm x 15cm with the composition of adding 0%, 5%, 10%, and 15% coconut shell waste. Which was then tested for compressive strength at the age of 7, 14, and 28 days. Based on the compressive strength test with a quality plan of f'c 20 MPa, on the 28 day test with the addition of 0% is 23.71 MPa, the addition of 5% is 20.59 MPa, the addition of 10% is 19.97 MPa, and an additional 15% is 13.53 MPa. Coconut shell as a substitute for coarse aggregate for quality f'c 20 MPa can only be used under 10% of the amount of coarse aggregate

Analisis Persepsi Pelayanan Kapal Malam Rute Kendari - Raha Provinsi Sulawesi Tenggara

The characteristics of night ship passengers are dominated by men, the average age of passengers is 20-25 years with a percentage value of 64%, the most travel destinations are Muna Island and the dominant service users have student jobs, while the analysis results are seen in the value of 0.66- 0.8, this means that the overall CSI score for performance appraisal is 1.96 with the criteria for the value of each indicator, service users are very satisfied with the performance of night ship services on the Kendari - Raha route, Southeast Sulawesi Province. The perception of service users towards night boat services on the Kendari - Raha route as a whole with an average value of 3.5 for performance and 3.1 for satisfaction. This can be seen in the quadrant A diagram in the Cartesian diagram, which means that the service elements are very good and provided very well