STRENGTH CHARACTERISICS OF APA (afzelia bipindensis) TIMBER FOR STRUCTURAL USE (A CASE STUDY OF SPECIES GROWN IN KWARA STATE, NIGERIA)
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Date
2016
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WEBSJOURNAL OF SCIENCE AND ENGINEERING APPLICATION
Abstract
This paper presents the results of experimental tests carried out on Apa (Afzelia bipindensis) to ascertain its structural performance. Fresh samples of Apa timber (Afzelia bipindensis) was collected from forest in Ajase Ipo town, in Irepodun Local Government Area of Kwara State, Nigeria. A log of Apa timber was obtained, air dried and 324 test specimens were prepared for strength properties determination. The strength characteristics tested were tensile, compression and bending parallel to grain alignment. The strength characteristics tests were conducted in accordance with BS 373. The mean and confidence limit were obtained through statistical analysis of the data obtained. The Tensile, Bending, Compressive, Modulus of Elasticity and Modulus of Rupture values of 26.90, 50.66, 2.58, 9274.62 ((N/mm2) respectively were recorded at 18% moisture content. In comparison with other structurally viable timber, it was concluded that Apa timber (Afzelia bipindensis) is more structurally adaptable and reliable.
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Keywords
Apa Timber, Structural performance, Strength Characteristics, Structural adaptable, Grain Alignment.