Characterization And Use Of Cassava Peel Ash In Concrete Production

Chimmaobi | 99 pages (20521 words) | Theses
Civil Engineering | Co Authors: Ogbonna

ABSTRACT

In this research work, the mechanical properties, durability and stiffness parameters of concrete in which the concrete component was partially replaced with cassava peel ash (CPA) were investigated. The replacement level of cement with CPA ranges from 0 – 40% at the hydration period of 3, 7, 28, 60 and 90 days respectively. The chemical analysis of CPA shows that it contain SiO2 (55.93%), Fe2O3 (6.02%) and Al2O3 (19.93%) among other oxides. The sum total of SiO2, Fe2O3 and Al2O3 is greater than 70% minimum prescribed by ASTM C618 – 78 which indicates that CPA can be used as a pozzolan. The pozzolanic activity index (PAI) of CPA is 75.8% which is also an indication that it has very high remarkable pozzolanic properties. The results of compressive strength of 5 – 40% replacement of cement with CPA range from 12.56N/mm2 to 33.26N/mm2 as against 13.93N/mm2 to 35.23N/mm2 for the control test. The result of flexural strength of 5 – 40% replacement of cement with CPA range from 3.33N/mm2 to 15.17N/mm2 as against 4.67N/mm2 to 16.80N/mm2 for the control test (0% replacement). The initial setting time of 5% to 40% replacement of cement with CPA range from 55minutes to 123minutes as against 52minutess for the control test. The final setting time of the cement with CPA at the same replacement level range from 596minutes to 788minutes as against 591minutes for the control test. The young’s modulus of elasticity for 5% to 40% replacement of cement with CPA range from 22572.09 N/mm2 to 31124.51 N/mm2 as against 23352.50 N/mm2 to 31721.31 KN/m2 for the control test. The modulus of rigidity of 9405.038 N/mm2 to 12968.55 N/mm2 as against 9730.208N/mm2 to 13217.21 N/mm2 for the control test.

 

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APA

CHIMMAOBI, C (2023). Characterization And Use Of Cassava Peel Ash In Concrete Production . Repository.mouau.edu.ng: Retrieved Jun 23, 2024, from https://repository.mouau.edu.ng/work/view/characterization-and-use-of-cassava-peel-ash-in-concrete-production-7-2

MLA 8th

CHIMMAOBI, CHIMMAOBI. "Characterization And Use Of Cassava Peel Ash In Concrete Production " Repository.mouau.edu.ng. Repository.mouau.edu.ng, 15 May. 2023, https://repository.mouau.edu.ng/work/view/characterization-and-use-of-cassava-peel-ash-in-concrete-production-7-2. Accessed 23 Jun. 2024.

MLA7

CHIMMAOBI, CHIMMAOBI. "Characterization And Use Of Cassava Peel Ash In Concrete Production ". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 15 May. 2023. Web. 23 Jun. 2024. < https://repository.mouau.edu.ng/work/view/characterization-and-use-of-cassava-peel-ash-in-concrete-production-7-2 >.

Chicago

CHIMMAOBI, CHIMMAOBI. "Characterization And Use Of Cassava Peel Ash In Concrete Production " Repository.mouau.edu.ng (2023). Accessed 23 Jun. 2024. https://repository.mouau.edu.ng/work/view/characterization-and-use-of-cassava-peel-ash-in-concrete-production-7-2

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