Palm Kernel Shell Ash As A Soil Stabilizing Agent And Its Optimum Calcine Temperature
Volume 1 - Issue 4, October 2017 Edition
[Download Full Paper]
Author(s)
Ogbodo Munachiso C
Keywords
Calcination, Cement, Palm Kernel Shell Ash(PKSA), Pozzollan,pozzolanic,pozzolanicity
Abstract
The correct assessment of agricultural by-products as soil stabilizing agents requires an in-depth knowledge of their characteristics. In thermally activated products, the calcine conditions have an important influence on the properties and later behaviours of cementitious matrices. This study was carried out to determine the effect of calcine conditions on the properties of Palm Kernel Shell Ash (PKSA). The Calcine conditions considered were; 200oC, 400oC, 600oC, 800oC and atmospheric condition. Investigations were conducted using GBC Sens AA dual double beam Atomic Absorption Spectrophotometer (AAS) with flame emission capability in order to provide a complete understanding of the chemical properties of the calcined Palm Kernel Shell, as well as the possibility of using it as a pozzolan or in blended cement. The test for pozzolanicity was also considered according to BS EN 196-5. The result showed that the material is pozzolanic, even though the chemical properties are affected by the thermal conditions. Finally, it was established that the optimum calcine temperature is 200oC on the bases of the chemical compositions of the material after calcinations.
References
[1] F.Falade, “Effect of Sawdust ash on the strength of Laterized Concrete.†West Indian J. Eng., 15(1), pp. 71-78.1990.
[2] Noor-ul-Amin, “Use of Clay as a Pozzolona in high strength Portland cement and its thermal activation.â€Chin. J. Geochem. Vol. 29. pp. 143-145, 2010.
[3] M. I. Sanchez De Rojas, F. Marin, J. Rivera, and M. Frias, “Morphology and Properties in blended cement with ceramic waste as a pozzolanicmaterial.â€Journal American Ceramic Socety, 89 (12),pp. 3701-3705. 2006.
[4] M. R. Frias, M. I. Sanchez De Rojas, J. G. Cabrera, “the effect that the pozzolanic reaction of Metakaolin has on the heat evolution in MK-Cement mortar.†Cem. Conc. Res. 30(2), pp: 209-216. 2000.
