Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Properties of groundnut shell (Arachis hypogaea) ash blended portland cement
The study of the properties of groundnut shell ash (GSA) obtained at 500oC revealed that the ash is a pozzolanic material. Its pozzolanicity was studied by Chemical analysis test conducted with the aid of Minipal 4 Energy Dispensing X-ray Fluorescence Spectrometer (EDXRF) as well other physical tests conducted on the material. Hydration behavior of 0%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 12%, 14% and 16% by weight of GSA blended ordinary Portland cement (OPC) was studied through workability measurement, setting time measurement and compressive strength measurement; it was found that at 28 days of hydration the compressive strength value for 12 wt% GSA blended cement concrete was quite comparable to that of concrete made from OPC. However, the highest compressive strength was obtained at 4 wt% GSA replacement with OPC. Chloride Ion penetration of OPC, OPC with 4% GSA and OPC with 12% GSA were then determined using Rapid Migration test. The result showed that application of 12% GSA blended OPC cement in concrete increases the resistance of such concrete to chloride ion penetration.Keywords: Groundnut shell ash, Rapid migration test, chloride ion penetration, compressive strength
Properties of groundnut shell (Arachis hypogaea) ash blended portland cement
The study of the properties of groundnut shell ash (GSA) obtained at 500oC revealed that the ash is a pozzolanic material. Its pozzolanicity was studied by Chemical analysis test conducted with the aid of Minipal 4 Energy Dispensing X-ray Fluorescence Spectrometer (EDXRF) as well other physical tests conducted on the material. Hydration behavior of 0%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 12%, 14% and 16% by weight of GSA blended ordinary Portland cement (OPC) was studied through workability measurement, setting time measurement and compressive strength measurement; it was found that at 28 days of hydration the compressive strength value for 12 wt% GSA blended cement concrete was quite comparable to that of concrete made from OPC. However, the highest compressive strength was obtained at 4 wt% GSA replacement with OPC. Chloride Ion penetration of OPC, OPC with 4% GSA and OPC with 12% GSA were then determined using Rapid Migration test. The result showed that application of 12% GSA blended OPC cement in concrete increases the resistance of such concrete to chloride ion penetration.Keywords: Groundnut shell ash, Rapid migration test, chloride ion penetration, compressive strength
Properties of groundnut shell (Arachis hypogaea) ash blended portland cement
Ikumapayi, C.M. (Autor:in)
29.11.2018
Journal of Applied Sciences and Environmental Management; Vol 22, No 10 (2018); 1553-1556 ; 1119-8362
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
690
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