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Farrokh Fazileh, Maryam Golestani, Cameron Flude, Bessam Kadhom, Reza Fathi-Fazl

i Senior Research Officer, National Research Council Canada, Ottawa, Canada, Farrokh.Fazileh@nrc-cnrc.gc.ca

ii Research Associate, National Research Council Canada, Ottawa, Canada, Maryam.GolestaniNajafabadi@nrc-cnrc.gc.ca

iii Student, National Research Council Canada, Ottawa, Canada, Cameron.Flude@nrc-cnrc.gc.ca

iv Research Officer, National Research Council Canada, Ottawa, Canada, Bessam.Kadhom@nrc-cnrc.gc.ca v Director, National Research Council Canada, Ottawa, Canada, Gholam-Reza.Fathi-Fazl@nrc-cnrc.gc.ca

ABSTRACT

Portland cement production is a major contributor to global CO2 emissions. Low-carbon cements, which typically involve the replacement of some of the ordinary Portland cement (OPC) in the mixture with supplemental cementitious materials (e.g., fly ash and/or slag), are a way to reduce the carbon footprint of masonry construction. Newly developed products can completely replace the OPC in cementitious materials. Such cement-free binders have very little CO2 emissions in their production process. This paper investigates the use of a low-carbon binder to create a fibrous mortar mixture that can be applied on the face of concrete masonry blocks as part of a structural upgrading technique. Mortar mixtures are designed and tested with a low-carbon binder to assess their viability as an alternative for developing low-carbon structural upgrading details.

KEYWORDS: Structural Upgrading, Unreinforced Masonry, Engineered Cementitious Composites, Ecofriendly Geopolymer Concrete, Low-carbon Concrete/Mortar.

170-Fazileh.pdf

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