Effect of pretreatment and pressure on properties of cement-bonded products from oxytenanthera abyssinica
2006
Alhedy, A.M.A., Agricultural Research Corporation, Soba (Sudan). Forestry Research Center | Abd-Algadir, A.Y., University of Khartoum, Shambat (Sudan). Faculty of Forestry | Mohamoud, A.A., Agricultural Research Corporation, Soba (Sudan). Forestry Research Center
The study was designed to determine the effect of three water soaking periods of time (3, 7 and 10 days), three pressure levels (0.05, 0.1 and 0.15 kg/cm2) and three cement/bamboo ratios (2:1, 3:1 and 4:1) on mechanical and physical properties of bamboo-cement mixture. The effect of the three studied factors was dependent on each other for MOR and hardness. The results showed that all specimens met the specification of the British standard (BS 1105; 1972) for strength properties and the density of the product increased with increasing cement/bamboo ratio. Soaking in water for more than 7 or 10 days was either not significantly different from 3 days or had lower strength and density values; hence, no need for soaking in water for more than 3 days. Water absorption and dimension swelling decreased significantly with increasing cement/bamboo ratio. Also increasing of pressure from 0.05 kg/cm2 to 0.15 kg/cm2 did not improve the mechanical and physical properties
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