ANALYSIS AND CHARACTERIZATION OF FILLERS FOR PRODUCTION OF AGRO-STONE BOARDS

ADGO, ADMITE

dc.contributor.author	ADGO, ADMITE
dc.date.accessioned	2017-07-31T07:42:29Z
dc.date.available	2017-07-31T07:42:29Z
dc.date.issued	2017-07-31
dc.identifier.uri	http://hdl.handle.net/123456789/7485
dc.description	A thesis Presented in partial fulfilment of the requirements for degree of Master of Science in materials science	en_US
dc.description.abstract	ABSTRACT Agro-stone boards are made up of binding materials (MOC, MOS, MPC), fillers (mineral and agro byproducts) and reinforced materials (fibre-glass). Different lignocellulostic cereal crop byproducts such as rice husk and wheat straw are available in Amhara region. These byproducts are used as filler for production of magnesium cement board or agro-stone board. However, their importance for agro-stone board production is still neglected. Therefore, research is needed for the nature and performance of these filler based and the current bagasse filler boards. The objective of this study is to investigate the effect of low cost fillers on the mechanical and physico-chemical characteristics of agro-stone/magnesia boards. The sample boards were produced from bagasse, rice husk and wheat straw fillers with fixed MgCh solution, and different proportion ofMgO and pumice. The effects of fillers, pumice and MgO on the properties such as density, water absorption and compressive strength were examined. The results showed that increment of MgO concentration from the current used bagasse filler board the density, water resistance and compressive strength were significantly increased. The increment of pumice concentration increased water resistivity and density whereas decreased the compressive strength. The rice husk and wheat straw fillers showed similar performance with the current bagasse filler on all parameters. We observed that the density, compressive strength and water resistivity of rice husk and wheat straw filler boards were increased by increasing MgO and lor pumice.	en_US
dc.subject	materials science	en_US
dc.title	ANALYSIS AND CHARACTERIZATION OF FILLERS FOR PRODUCTION OF AGRO-STONE BOARDS	en_US
dc.type	Thesis	en_US