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A Study on the Pozzolanic Properties of Pennisetum Purpureum Ash

  • Pozzolanic properties of Pennisetum purpureum grass ash were tested on Portland cement. Results show that the ash can be blended with cements without compromising binding strength of the cement. It was found that Portland cement could be blended with Pennisetum purpureum up to a ratio of 3:2 compromising compressive strength of mortar.Mortar with lower cement replacement took longer to set as evidenced by lower compressive strength within the 28-day aging time. Mortar with higher cement replacement had lower water absorption capacity, an indication that the test pozzolan was of smaller particulate size. XRF analysis and the FTIR spectrum showed that the ash has a higher content of silica. The XRD pattern of the ash showed that the ash was predominantly amorphous. SEM images showed that the ash produced at 600 o C had residual carbon material.

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Document Type:Article
Author:L. Saruchera, Mathew Mupa, N. Muchanyereyi-Mukuratirwa, Steffen Witzleben
Parent Title (English):Journal of Interdisciplinary Academic Research
First Page:1
Last Page:10
Publisher:Academic Research Centre
Publishing Institution:Hochschule Bonn-Rhein-Sieg
Date of first publication:2018/07/12
Departments, institutes and facilities:Fachbereich Angewandte Naturwissenschaften
Dewey Decimal Classification (DDC):5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Entry in this database:2020/01/08
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International