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Back to the 40th Meeting of the NCHC - Contents
Effect of Pretreatment and Pressure on Properties of Cement-bonded
Products from
Oxytenanthera abyssinica
Atef M. A. Alhedy , Abd Alaziem Y. Abd Algadir and Abd Elatief A.
Mohamoud
Abstract:
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.
Proceedings of the
Meetings of the National Crop Husbandry Committee 40th (2005) pp.
237-244
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