analysis of mechanical properties of ceiling boards based on corn cobs and coconut coir waste with latex adhesive

<p align="center"><strong><em>Abstract</em></strong></p><p>Ceiling evelopment by utilizing waste corn cobs, coconut coir with gypsum flour an the adition of latex adhesive. Variations in composition mixture coir, adhesive include sample A (0:0:100:15), B (3:3:94:15), C (6:6:88:15), D (9:9:82:15), E (12:12:76:15), and F (15:15:70:15) emphasis using a <em>hot press </em>and drying for 28 days. The test parameters flexural strength fracture strength. results show that (3:3:94:15) is optimal result. In this composition, resulting ceiling board has characteristics 3966,39 kgf/cm<sup>2</sup> 1088,6 kgf/cm<sup>2</sup>.</p><p><strong><em>Keyword :</em></strong><em> Lateks , Ceiling Board, Coconut Coir, Corn Cob</em></p><p><em> </em></p>