ABSTRACT
Rice husk ash and saw
dust ash are good materials that can supplement cement to some extent but the
percentage of saw dust ash and rice husk ash should not be more than 15% of
cement. For a given mix, the water requirement increase as the rice husk ash and
saw dust ash content increases. The increased water demand is as a result of
increased carbon content. This is because the carbon content of ordinary
Portland cement is very small compared to that in Rice husk ash and Saw dust
ash. So as ash is introduced into the mix, the carbon content increases and the
water requirement also increases. The setting time of concrete with saw dust
ash and rice husk ash increases as the ash content increases: The compressive
strength of the concrete cubes for all mix increases with age at curing and
decreases as the rice husk ash and saw dust ash content increases. This
addition of rice husk ash and saw dust as is permitted for lightweight
structure. All materials used for the practical are local materials and they
are readily available and they can also reduce the cost of producing concrete
when implemented. There has been no issue of hazardous emission generated from
this material when used for construction. The mode of disposing rice husk ash
and sawdust has been by open air burning which has harmful effect on the people
and environment at large but with its implementation in lightweight structure,
it will help in providing clean and safe environment.
JAMES, O (2023). Effect Of Rice Husk Ash On Concrete Produced With Saw Dust Ash. Mouau.afribary.org: Retrieved Dec 25, 2024, from https://repository.mouau.edu.ng/work/view/effect-of-rice-husk-ash-on-concrete-produced-with-saw-dust-ash-7-2
OGBONNIA, JAMES. "Effect Of Rice Husk Ash On Concrete Produced With Saw Dust Ash" Mouau.afribary.org. Mouau.afribary.org, 22 Mar. 2023, https://repository.mouau.edu.ng/work/view/effect-of-rice-husk-ash-on-concrete-produced-with-saw-dust-ash-7-2. Accessed 25 Dec. 2024.
OGBONNIA, JAMES. "Effect Of Rice Husk Ash On Concrete Produced With Saw Dust Ash". Mouau.afribary.org, Mouau.afribary.org, 22 Mar. 2023. Web. 25 Dec. 2024. < https://repository.mouau.edu.ng/work/view/effect-of-rice-husk-ash-on-concrete-produced-with-saw-dust-ash-7-2 >.
OGBONNIA, JAMES. "Effect Of Rice Husk Ash On Concrete Produced With Saw Dust Ash" Mouau.afribary.org (2023). Accessed 25 Dec. 2024. https://repository.mouau.edu.ng/work/view/effect-of-rice-husk-ash-on-concrete-produced-with-saw-dust-ash-7-2