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High volume Portland cement replacement: A review

Nwankwo, C.O and Bamigboye, Gideon and Davies, I.E.E and Michaels, T.A (2020) High volume Portland cement replacement: A review. Construction and Building Materials, 2 (60).

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Abstract

Increasing urban development has increased the demand for cement and cement production significantly contributes to CO2 emissions. These emissions are reduced when high volumes of cement are replaced with materials that do not give of high emissions. Sustainable development and considerations for a circular economy fuel the need to find alternative binders in concrete production that reduce the amount of carbon dioxide emissions and utilizes waste materials. Certain industrial wastes (fly ash and ground granulated blast furnace slag), municipal wastes (glass powder and ceramic waste powder) and agricultural wastes (palm oil fuel ash) have been used as a Portland cement (PC) substitute due to their pozzolanic properties. This article discusses the high volume replacement of PC in concrete with these waste materials in terms of the strength development of concrete, its effect on the hydration mechanism, the environmental impact of its use and its relation to alkali cement.

Item Type: Article
Uncontrolled Keywords: Sustainable concrete Compressive strength Durability Waste materials Hydration mechanism Fly ash GGBS Palm oil fuel ash Alkali cement
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 17 Jun 2021 11:28
Last Modified: 17 Jun 2021 11:28
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/14532

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