The 'Greenness' of high-volume fly ash (HVFA) concrete when exposed to carbonation
- Author
- Philip Van den Heede (UGent) and Nele De Belie (UGent)
- Organization
- Abstract
- With at least 50 % of the cement replaced with fly ash, the environmental benefit of High-Volume Fly Ash concrete is seemingly obvious. However, a correct evaluation of this “greenness” requires a full strength and durability assessment followed by life cycle assessment. Two exposure classes were considered: a dry (XC1) and a cyclic wet and dry (XC4) environment with carbonation. A full probabilistic service life prediction based on accelerated carbonation testing, shows that corrosion will not be a problem in both environments after 50 years if the concrete was cured at high relative humidity for at least 28 days. An environmental benefit of about 20 % can be obtained for an axially loaded HVFA column in a XC1 environment. For exposure class XC4, there is no benefit, because of the HVFA mixture‟s considerably lower strength in comparison with the reference for that environment.
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-2753448
- MLA
- Van den Heede, Philip, and Nele De Belie. “The ‘Greenness’ of High-Volume Fly Ash (HVFA) Concrete When Exposed to Carbonation.” RILEM Proceedings, edited by Christopher Leung and KT Wan, vol. PRO 79, RILEM Publications, 2011, pp. 1–7.
- APA
- Van den Heede, P., & De Belie, N. (2011). The “Greenness” of high-volume fly ash (HVFA) concrete when exposed to carbonation. In C. Leung & K. Wan (Eds.), RILEM Proceedings: Vol. PRO 79 (pp. 1–7). Bagneux, France: RILEM Publications.
- Chicago author-date
- Van den Heede, Philip, and Nele De Belie. 2011. “The ‘Greenness’ of High-Volume Fly Ash (HVFA) Concrete When Exposed to Carbonation.” In RILEM Proceedings, edited by Christopher Leung and KT Wan, PRO 79:1–7. Bagneux, France: RILEM Publications.
- Chicago author-date (all authors)
- Van den Heede, Philip, and Nele De Belie. 2011. “The ‘Greenness’ of High-Volume Fly Ash (HVFA) Concrete When Exposed to Carbonation.” In RILEM Proceedings, ed by. Christopher Leung and KT Wan, PRO 79:1–7. Bagneux, France: RILEM Publications.
- Vancouver
- 1.Van den Heede P, De Belie N. The “Greenness” of high-volume fly ash (HVFA) concrete when exposed to carbonation. In: Leung C, Wan K, editors. RILEM Proceedings. Bagneux, France: RILEM Publications; 2011. p. 1–7.
- IEEE
- [1]P. Van den Heede and N. De Belie, “The ‘Greenness’ of high-volume fly ash (HVFA) concrete when exposed to carbonation,” in RILEM Proceedings, Hong Kong, China, 2011, vol. PRO 79, pp. 1–7.
@inproceedings{2753448,
abstract = {{With at least 50 % of the cement replaced with fly ash, the environmental benefit of High-Volume Fly Ash concrete is seemingly obvious. However, a correct evaluation of this “greenness” requires a full strength and durability assessment followed by life cycle assessment. Two exposure classes were considered: a dry (XC1) and a cyclic wet and dry (XC4) environment with carbonation. A full probabilistic service life prediction based on accelerated carbonation testing, shows that corrosion will not be a problem in both environments after 50 years if the concrete was cured at high relative humidity for at least 28 days. An environmental benefit of about 20 % can be obtained for an axially loaded HVFA column in a XC1 environment. For exposure class XC4, there is no benefit, because of the HVFA mixture‟s considerably lower strength in comparison with the reference for that environment.}},
author = {{Van den Heede, Philip and De Belie, Nele}},
booktitle = {{RILEM Proceedings}},
editor = {{Leung, Christopher and Wan, KT}},
isbn = {{9782351581162}},
issn = {{1461-1147}},
language = {{eng}},
location = {{Hong Kong, China}},
pages = {{1--7}},
publisher = {{RILEM Publications}},
title = {{The 'Greenness' of high-volume fly ash (HVFA) concrete when exposed to carbonation}},
volume = {{PRO 79}},
year = {{2011}},
}