Waste Chicken Feather as Reinforcement in Cement-Bonded Composites
Menandro Acda
Department of Forest Products and Paper Science, College of Forestry and Natural Resources, University of the Philippines Los Baños, College, Laguna 4031 Philippines
corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
This study investigated the use of waste chicken feather (barbs and rachis) as reinforcement in cement-bonded composites. A series of composite boards consisting of various proportions of waste feather, cement, sand, and chemical admixtures were prepared. Mix workability decreased significantly as the proportion by weight of feathers or ground feathers increased from 5% to 20%. Boards containing 5% to 10% fiber and/or ground feather by weight showed comparable strength and dimensional stability to commercial wood fiber-cement composites of similar thickness and density. Stiffness, flexural strength, and dimensional stability of the feather-cement boards decreased as the proportion of feathers was increased above 10%. Higher proportions of feather, however, showed significant reduction in modulus of elasticity (MOE) and modulus of rupture (MOR), and increased water absorption and thickness swelling after 24 hours of soaking in water.
INTRODUCTION
Chicken feathers are waste products of the poultry industry. Billions of kilograms of waste feathers are generated each year by poultry processing plants, creating a serious solid waste problem (Parkinson 1998; Schmidt 1998). The Philippine poultry industry produced about 40 million broiler chickens annually (USDA FAS 2005). These chickens generate about six million kilograms of waste feathers annually when the birds are processed in commercial dressing plants. . . . . .
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