Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes

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Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes. / Phung, Quoc Tri; Maes, Norbert; Jacques, Diederik; De Schutter, Geert; Ye, Guang; Perko, Janez (Peer reviewer).

Key Engineering Materials: 8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016; Lecco; Italy; 12 September 2016 through 14 September 2016; Code 184679. Vol. 711 2016. ed. 2016. p. 269-276 (Key Engineering Materials).

Research output: Contribution to report/book/conference proceedingsIn-proceedings paperpeer-review

Harvard

Phung, QT, Maes, N, Jacques, D, De Schutter, G, Ye, G & Perko, J 2016, Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes. in Key Engineering Materials: 8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016; Lecco; Italy; 12 September 2016 through 14 September 2016; Code 184679. 2016 edn, vol. 711, Key Engineering Materials, pp. 269-276, CONSEC 2016 - 8th International Conference on Concrete Under Severe Conditions-Environment & Loading , Lecco, Italy, 2016-09-12. https://doi.org/10.4028/www.scientific.net/KEM.711.269

APA

Phung, Q. T., Maes, N., Jacques, D., De Schutter, G., Ye, G., & Perko, J. (2016). Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes. In Key Engineering Materials: 8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016; Lecco; Italy; 12 September 2016 through 14 September 2016; Code 184679 (2016 ed., Vol. 711, pp. 269-276). (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.711.269

Vancouver

Phung QT, Maes N, Jacques D, De Schutter G, Ye G, Perko J. Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes. In Key Engineering Materials: 8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016; Lecco; Italy; 12 September 2016 through 14 September 2016; Code 184679. 2016 ed. Vol. 711. 2016. p. 269-276. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.711.269

Author

Phung, Quoc Tri ; Maes, Norbert ; Jacques, Diederik ; De Schutter, Geert ; Ye, Guang ; Perko, Janez. / Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes. Key Engineering Materials: 8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016; Lecco; Italy; 12 September 2016 through 14 September 2016; Code 184679. Vol. 711 2016. ed. 2016. pp. 269-276 (Key Engineering Materials).

Bibtex - Download

@inproceedings{abdb6e915b15407bb09fb03b315a2277,
title = "Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes",
abstract = "Because of its environmental and economic benefits, part of cement is replaced by limestone fillers (LS). However, the effect of LS on the chemical degradation of cement-based materials is still unclear. In this study, accelerated leaching and carbonation were applied on cement pastes to study the effects of LS replacement on the degradation rates and microstructural alterations of degraded materials. Ammonium nitrate solution was used to accelerate the leaching process, while carbonation was speeded up by applying an elevated pressure gradient of pure CO2 on samples with 65% relative humidity. The carbonation rate was characterized by phenolphthalein carbonation depth and CO2 uptake, while leaching rate was quantified by phenolphthalein leaching depth and Ca-leached amount. Leached/carbonated samples were analyzed by a series of postanalysis techniques to characterize the microstructural and mineralogical changes. Results showed that, for a similar w/c ratio, a higher LS replacement resulted in lower leaching rate. For carbonation, LS replacement promoted the CO2 uptake despite similar carbonation depth. Furthermore, LS replacement led to less C-S-H carbonation compared to samples without LS.",
keywords = "carbonation, leaching, microstructure, limestone fillers, cement paste",
author = "Phung, {Quoc Tri} and Norbert Maes and Diederik Jacques and {De Schutter}, Geert and Guang Ye and Janez Perko",
note = "Score=3; CONSEC 2016 - 8th International Conference on Concrete Under Severe Conditions-Environment & Loading ; Conference date: 12-09-2016 Through 14-09-2016",
year = "2016",
month = sep,
day = "12",
doi = "10.4028/www.scientific.net/KEM.711.269",
language = "English",
isbn = "978-303571044-1",
volume = "711",
series = "Key Engineering Materials",
publisher = "TTP - Trans Tech Publications",
pages = "269--276",
booktitle = "Key Engineering Materials",
edition = "2016",

}

RIS - Download

TY - GEN

T1 - Effect of Limestone Fillers on Ca-leaching and Carbonation of Cement Pastes

AU - Phung, Quoc Tri

AU - Maes, Norbert

AU - Jacques, Diederik

AU - De Schutter, Geert

AU - Ye, Guang

A2 - Perko, Janez

N1 - Score=3

PY - 2016/9/12

Y1 - 2016/9/12

N2 - Because of its environmental and economic benefits, part of cement is replaced by limestone fillers (LS). However, the effect of LS on the chemical degradation of cement-based materials is still unclear. In this study, accelerated leaching and carbonation were applied on cement pastes to study the effects of LS replacement on the degradation rates and microstructural alterations of degraded materials. Ammonium nitrate solution was used to accelerate the leaching process, while carbonation was speeded up by applying an elevated pressure gradient of pure CO2 on samples with 65% relative humidity. The carbonation rate was characterized by phenolphthalein carbonation depth and CO2 uptake, while leaching rate was quantified by phenolphthalein leaching depth and Ca-leached amount. Leached/carbonated samples were analyzed by a series of postanalysis techniques to characterize the microstructural and mineralogical changes. Results showed that, for a similar w/c ratio, a higher LS replacement resulted in lower leaching rate. For carbonation, LS replacement promoted the CO2 uptake despite similar carbonation depth. Furthermore, LS replacement led to less C-S-H carbonation compared to samples without LS.

AB - Because of its environmental and economic benefits, part of cement is replaced by limestone fillers (LS). However, the effect of LS on the chemical degradation of cement-based materials is still unclear. In this study, accelerated leaching and carbonation were applied on cement pastes to study the effects of LS replacement on the degradation rates and microstructural alterations of degraded materials. Ammonium nitrate solution was used to accelerate the leaching process, while carbonation was speeded up by applying an elevated pressure gradient of pure CO2 on samples with 65% relative humidity. The carbonation rate was characterized by phenolphthalein carbonation depth and CO2 uptake, while leaching rate was quantified by phenolphthalein leaching depth and Ca-leached amount. Leached/carbonated samples were analyzed by a series of postanalysis techniques to characterize the microstructural and mineralogical changes. Results showed that, for a similar w/c ratio, a higher LS replacement resulted in lower leaching rate. For carbonation, LS replacement promoted the CO2 uptake despite similar carbonation depth. Furthermore, LS replacement led to less C-S-H carbonation compared to samples without LS.

KW - carbonation

KW - leaching

KW - microstructure

KW - limestone fillers

KW - cement paste

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/19820027

U2 - 10.4028/www.scientific.net/KEM.711.269

DO - 10.4028/www.scientific.net/KEM.711.269

M3 - In-proceedings paper

SN - 978-303571044-1

VL - 711

T3 - Key Engineering Materials

SP - 269

EP - 276

BT - Key Engineering Materials

T2 - CONSEC 2016 - 8th International Conference on Concrete Under Severe Conditions-Environment & Loading

Y2 - 12 September 2016 through 14 September 2016

ER -

ID: 6774496