| dc.description.abstract | The rapid depletion of natural river sand and the increasing generation of agricultural and
industrial waste have encouraged researchers to explore sustainable alternative materials in
concrete production. This study investigates the effect of partial replacement of fine
aggregate (sand) with wood powder and rice husk on the compressive strength of concrete.
Concrete was prepared with partial replacement of sand at 0%, 5%, 10%, and 15% by wood
powder and rice husk. A total of concrete specimens of size 100 mm diameter and 200 mm
height cylinder were cast and tested for compressive strength at 7 and 28 days of curing in
accordance with ASTM standards. Partial replacement of sand with wooden husk, the
compressive strength improved at 5% replacement compared to the control mix. Partial
replacement of sand with rice husk showed 10% rice husk replacement produced the highest
compressive strength. This research presents an experimental study on the comparison of
compressive strength of concrete by partial replacement of fine aggregate (sand) using wood
powder and rice husk. The increasing demand for natural sand and the environmental issues
associated with agricultural and industrial waste disposal have encouraged the use of
alternative materials in concrete production. The 10% rice husk replacement exhibited the
highest compressive strength among all mixes, achieving 3212.52 at 7 days and 3642.00 at 28
days. Concrete containing 5% wood powder showed improved compressive strength
compared to the control mix, with values of 2773.44 at 7 days and 3375.42 at 28 days. A
comparison between wood powder and rice husk indicates that rice husk performs better than
wood powder as a partial replacement of sand. The maximum compressive strength was
obtained with 10% rice husk replacement, particularly at 28 days of curing. | en_US |
