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Kinetics of enforced carbonation of cement paste

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Kinetics of enforced carbonation of cement paste. / Zajac, Maciej; Skibsted, Jørgen; Durdzinski, Pawel; Bullerjahn, Frank; Skocek, Jan; Ben Haha, Mohsen.

I: Cement and Concrete Research, Bind 131, 106013, 05.2020.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Zajac, M, Skibsted, J, Durdzinski, P, Bullerjahn, F, Skocek, J & Ben Haha, M 2020, 'Kinetics of enforced carbonation of cement paste', Cement and Concrete Research, bind 131, 106013. https://doi.org/10.1016/j.cemconres.2020.106013

APA

Zajac, M., Skibsted, J., Durdzinski, P., Bullerjahn, F., Skocek, J., & Ben Haha, M. (2020). Kinetics of enforced carbonation of cement paste. Cement and Concrete Research, 131, [106013]. https://doi.org/10.1016/j.cemconres.2020.106013

CBE

Zajac M, Skibsted J, Durdzinski P, Bullerjahn F, Skocek J, Ben Haha M. 2020. Kinetics of enforced carbonation of cement paste. Cement and Concrete Research. 131:Article 106013. https://doi.org/10.1016/j.cemconres.2020.106013

MLA

Vancouver

Zajac M, Skibsted J, Durdzinski P, Bullerjahn F, Skocek J, Ben Haha M. Kinetics of enforced carbonation of cement paste. Cement and Concrete Research. 2020 maj;131. 106013. https://doi.org/10.1016/j.cemconres.2020.106013

Author

Zajac, Maciej ; Skibsted, Jørgen ; Durdzinski, Pawel ; Bullerjahn, Frank ; Skocek, Jan ; Ben Haha, Mohsen. / Kinetics of enforced carbonation of cement paste. I: Cement and Concrete Research. 2020 ; Bind 131.

Bibtex

@article{5dc594f2134740288073278ca4db2a9c,
title = "Kinetics of enforced carbonation of cement paste",
abstract = "The carbonation mechanisms of ground, hydrated cement pastes that mimic recycled concrete fines are investigated under direct wet carbonation. The carbonation is a sequential processes including dissolution of the hydrates, transport of the dissolved material to the precipitation sites and precipitation of the reaction products. During the first stages of carbonation, when portlandite reacts, the reaction is limited by the amount of dissolved CO2 and potentially by the calcite precipitation rate. When portlandite is depleted, the kinetics is dominated by the dissolution of other hydrates and diffusion of calcium into the solution. The main carbonation products are calcite and an alumina-silica (hydrate) gel. The hydrotalcite-like phase appears to be stable towards carbonation under the experimental conditions employed in this work. The CO2 concentration and the paste composition have a limited influence on the reaction mechanisms as well as on products formed.",
keywords = "Alumina-silica gel, Calcite, CO, Concrete recycling, Reaction kinetics",
author = "Maciej Zajac and J{\o}rgen Skibsted and Pawel Durdzinski and Frank Bullerjahn and Jan Skocek and {Ben Haha}, Mohsen",
year = "2020",
month = may,
doi = "10.1016/j.cemconres.2020.106013",
language = "English",
volume = "131",
journal = "Cement and Concrete Research",
issn = "0008-8846",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Kinetics of enforced carbonation of cement paste

AU - Zajac, Maciej

AU - Skibsted, Jørgen

AU - Durdzinski, Pawel

AU - Bullerjahn, Frank

AU - Skocek, Jan

AU - Ben Haha, Mohsen

PY - 2020/5

Y1 - 2020/5

N2 - The carbonation mechanisms of ground, hydrated cement pastes that mimic recycled concrete fines are investigated under direct wet carbonation. The carbonation is a sequential processes including dissolution of the hydrates, transport of the dissolved material to the precipitation sites and precipitation of the reaction products. During the first stages of carbonation, when portlandite reacts, the reaction is limited by the amount of dissolved CO2 and potentially by the calcite precipitation rate. When portlandite is depleted, the kinetics is dominated by the dissolution of other hydrates and diffusion of calcium into the solution. The main carbonation products are calcite and an alumina-silica (hydrate) gel. The hydrotalcite-like phase appears to be stable towards carbonation under the experimental conditions employed in this work. The CO2 concentration and the paste composition have a limited influence on the reaction mechanisms as well as on products formed.

AB - The carbonation mechanisms of ground, hydrated cement pastes that mimic recycled concrete fines are investigated under direct wet carbonation. The carbonation is a sequential processes including dissolution of the hydrates, transport of the dissolved material to the precipitation sites and precipitation of the reaction products. During the first stages of carbonation, when portlandite reacts, the reaction is limited by the amount of dissolved CO2 and potentially by the calcite precipitation rate. When portlandite is depleted, the kinetics is dominated by the dissolution of other hydrates and diffusion of calcium into the solution. The main carbonation products are calcite and an alumina-silica (hydrate) gel. The hydrotalcite-like phase appears to be stable towards carbonation under the experimental conditions employed in this work. The CO2 concentration and the paste composition have a limited influence on the reaction mechanisms as well as on products formed.

KW - Alumina-silica gel

KW - Calcite

KW - CO

KW - Concrete recycling

KW - Reaction kinetics

UR - http://www.scopus.com/inward/record.url?scp=85081030928&partnerID=8YFLogxK

U2 - 10.1016/j.cemconres.2020.106013

DO - 10.1016/j.cemconres.2020.106013

M3 - Journal article

AN - SCOPUS:85081030928

VL - 131

JO - Cement and Concrete Research

JF - Cement and Concrete Research

SN - 0008-8846

M1 - 106013

ER -