Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Developments in Strategic Ceramic Materials II |
| Untertitel | Ceramic Engineering and Science |
| Herausgeber/-innen | Waltraud M. Kriven, Yanchun Zhou, Jingyang Wang, Dongming Zhu, Gustavo Costa |
| Herausgeber (Verlag) | American Ceramic Society |
| Seiten | 3-12 |
| Seitenumfang | 10 |
| Band | 37 |
| Auflage | 7 |
| ISBN (elektronisch) | 9781119321811 |
| ISBN (Print) | 9781119040439 |
| Publikationsstatus | Veröffentlicht - 30 Jan. 2017 |
| Veranstaltung | Developments in Strategic Ceramic Materials II - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016 - Daytona Beach, USA / Vereinigte Staaten Dauer: 24 Jan. 2016 → 29 Jan. 2016 |
Publikationsreihe
| Name | Ceramic Engineering and Science Proceedings |
|---|---|
| Nummer | 7 |
| Band | 37 |
| ISSN (Print) | 0196-6219 |
Abstract
The durability performance of Alkali-Activated Cements (AAC) i.e., metakaolin (AAMK), slag (AAH), fly ash (AAB), and their hybrids (AAMK/H, AAMK/B) were carried out by a carbonation test and degradation test in sulfuric acid pH 0.5. The effect of carbonation was followed by IR absorption spectroscopy, KBr method. Ordinary Portland Cement (OPC), modified-OPC, and AAC were monitored for 11 weeks. Series of AAMK, AAH, AAB, and their hybrids were prepared using 2 types of alkaline activator (K0.5 and K0.64) and their deterioration were monitored for 9 weeks. Any accelerated carbonation could be ruled out in the case of AAMK, while it occurred the more the higher the CaO content of the raw material. In those materials carbonation occurred with the possible formation of vaterite which split in the IR bands at about 1420 and 1490 cm-1 before exposure. Further reaction was detected by increasing the intensity of vaterite phase after being exposed to CO2 of 3 vol%. For the sulfuric acid, the AAC revealed much better compared to OPC. A comparison between 2 types of alkaline activator revealed that higher alkaline content yielded more deterioration. As compared between sources of starting materials, AAB tended to resist acid attack better than did AAMK. However, the AAB showed significant formation of cracks. The results are also discussed with respect to their long term mechanical properties followed over 5 years.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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Developments in Strategic Ceramic Materials II: Ceramic Engineering and Science. Hrsg. / Waltraud M. Kriven; Yanchun Zhou; Jingyang Wang; Dongming Zhu; Gustavo Costa. Band 37 7. Aufl. American Ceramic Society, 2017. S. 3-12 (Ceramic Engineering and Science Proceedings; Band 37, Nr. 7).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Durability Performance of Alkali‐Activated Metakaolin, Slag, Fly Ash, and Hybrids
AU - Jirasit, F.
AU - Rüscher, C. H.
AU - Lohaus, L.
AU - Chindaprasirt, P.
N1 - Funding information: FJ is deeply indebted to Prof. Joseph Davidovits for his valuable discussions at the beginning of this research. FJ also thanks to Rajamangala University of Technology Lanna (RMUTL), Thailand, for supporting her stay abroad at Department for Building Materials, and Department of Mineralogy, both at University of Hannover, Germany. Special thanks to German Academic Exchange Service (DAAD) for funding the scholarship ‘Research Stays for University Academics and Scientists, 2015’ and also the travel grant by Leibniz Universität Hannover for my research visit to the Research Centre for Solid State Chemistry and New Materials (ZFM) at Leibniz Universität Hannover in June and July 2015. The University of Hannover is thanked for ACKNOWLEDGEMENTS FJ is deeply indebted to Prof. Joseph Davidovits for his valuable discussions at the beginning of this research. FJ also thanks to Rajamangala University of Technology Lanna (RMUTL), Thailand, for supporting her stay abroad at Department for Building Materials, and Department of Mineralogy, both at University of Hannover, Germany. Special thanks to German Academic Exchange Service (DAAD) for funding the scholarship ‘Research Stays for University Academics and Scientists, 2015’ and also the travel grant by Leibniz Universität Hannover for my research visit to the Research Centre for Solid State Chemistry and New Materials (ZFM) at Leibniz Universität Hannover in June and July 2015. The University of Hannover is thanked for
PY - 2017/1/30
Y1 - 2017/1/30
N2 - The durability performance of Alkali-Activated Cements (AAC) i.e., metakaolin (AAMK), slag (AAH), fly ash (AAB), and their hybrids (AAMK/H, AAMK/B) were carried out by a carbonation test and degradation test in sulfuric acid pH 0.5. The effect of carbonation was followed by IR absorption spectroscopy, KBr method. Ordinary Portland Cement (OPC), modified-OPC, and AAC were monitored for 11 weeks. Series of AAMK, AAH, AAB, and their hybrids were prepared using 2 types of alkaline activator (K0.5 and K0.64) and their deterioration were monitored for 9 weeks. Any accelerated carbonation could be ruled out in the case of AAMK, while it occurred the more the higher the CaO content of the raw material. In those materials carbonation occurred with the possible formation of vaterite which split in the IR bands at about 1420 and 1490 cm-1 before exposure. Further reaction was detected by increasing the intensity of vaterite phase after being exposed to CO2 of 3 vol%. For the sulfuric acid, the AAC revealed much better compared to OPC. A comparison between 2 types of alkaline activator revealed that higher alkaline content yielded more deterioration. As compared between sources of starting materials, AAB tended to resist acid attack better than did AAMK. However, the AAB showed significant formation of cracks. The results are also discussed with respect to their long term mechanical properties followed over 5 years.
AB - The durability performance of Alkali-Activated Cements (AAC) i.e., metakaolin (AAMK), slag (AAH), fly ash (AAB), and their hybrids (AAMK/H, AAMK/B) were carried out by a carbonation test and degradation test in sulfuric acid pH 0.5. The effect of carbonation was followed by IR absorption spectroscopy, KBr method. Ordinary Portland Cement (OPC), modified-OPC, and AAC were monitored for 11 weeks. Series of AAMK, AAH, AAB, and their hybrids were prepared using 2 types of alkaline activator (K0.5 and K0.64) and their deterioration were monitored for 9 weeks. Any accelerated carbonation could be ruled out in the case of AAMK, while it occurred the more the higher the CaO content of the raw material. In those materials carbonation occurred with the possible formation of vaterite which split in the IR bands at about 1420 and 1490 cm-1 before exposure. Further reaction was detected by increasing the intensity of vaterite phase after being exposed to CO2 of 3 vol%. For the sulfuric acid, the AAC revealed much better compared to OPC. A comparison between 2 types of alkaline activator revealed that higher alkaline content yielded more deterioration. As compared between sources of starting materials, AAB tended to resist acid attack better than did AAMK. However, the AAB showed significant formation of cracks. The results are also discussed with respect to their long term mechanical properties followed over 5 years.
UR - http://www.scopus.com/inward/record.url?scp=85044274868&partnerID=8YFLogxK
U2 - 10.1002/9781119321811.ch1
DO - 10.1002/9781119321811.ch1
M3 - Conference contribution
AN - SCOPUS:85044274868
SN - 9781119040439
VL - 37
T3 - Ceramic Engineering and Science Proceedings
SP - 3
EP - 12
BT - Developments in Strategic Ceramic Materials II
A2 - Kriven, Waltraud M.
A2 - Zhou, Yanchun
A2 - Wang, Jingyang
A2 - Zhu, Dongming
A2 - Costa, Gustavo
PB - American Ceramic Society
T2 - Developments in Strategic Ceramic Materials II - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016
Y2 - 24 January 2016 through 29 January 2016
ER -