PENGARUH PENAMBAHAN ABU AMPAS KULIT JAGUNG TERHADAP KUAT TEKAN DAN PENYERAPAN AIR PAVING BLOCK

Sari

Paving block is one of the construction productions commonly used for pavement, yards, sidewalks, and others. Paving block molds in rectangular shape with a size of 20 cm × 10 cm × 6 cm as many as 36 pieces of plan quality, which is 8.5 MPa. Paving block printing using hydraulic press. The percentage of corn husk pulp ash as a substitute for cement is 0%, 2%, 4%, 6%, 8% with a mixture of 1 cement: 3 sand. Paving blocks are tested at 28 days of age and tested for compressive strength and water absorption. For compressive strength testing, paving blocks are cut into cube shapes measuring 5 cm × 5 cm × 5 cm, and tested using Unit Testing Machine (UTM) compressive testing equipment, while for water absorption testing on paving blocks using the initial mold size. In this study, a normal paving block compressive strength value of 2.19 MPa was obtained. The highest compressive strength value is obtained in 2% incremental variation with a compressive strength value of 2.03 MPa. As for normal paving block water absorption, an absorption value of 813.30% was obtained. The smallest water absorption value is obtained in a variation of 4% addition, which is 10.70%.

Keywords: Paving Block, Corn Husk Pulp Ash, Strong Compression, Water Absorption