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The use of fly ash in completely recyclable concrete

Mieke De Schepper, Philip Van den Heede UGent and Nele De Belie UGent (2010) RILEM PROCEEDINGS. PRO 77. p.35-43
abstract
The concept of completely recyclable concrete (CRC) has been developed to close the loop. By adequately incorporating limestone aggregates and industrial by-products, the chemical composition should resemble the composiation of Portland clinker which enables the use of CRC as a raw material in Portland cement production. This paper investigates whether the chemical composition can be adjusted by partially replacing cement with pozzolanic fly ash. CRC mixtures were produced with 50 % ordinary Portland cement or blast-furnace cement. At the age of one month laboratory clinker and cement were produced from the CRCs. The resulting cement has a low compressive strength and hydraulic reactivity caused by a high belite content, so corrections were necessary. It is concluded that this paper that cement with hydraulic properties can be produced from CRC, but the chemical composition of all used concrete materials needs to be known for recycling without modification.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
in
RILEM PROCEEDINGS
RILEM Proc.
editor
Wolfgang Brameshuber
volume
PRO 77
issue title
International RILEM conference on material science (MATSCI), vol III
pages
35 - 43
publisher
RILEM Publications
place of publication
Bagneux, France
conference name
International RILEM conference on Material Science
conference location
Aachen, Germany
conference start
2010-09-06
conference end
2010-09-08
Web of Science type
Proceedings Paper
Web of Science id
000289456300004
ISSN
1461-1147
ISBN
978-2-35158-110-0
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1339561
handle
http://hdl.handle.net/1854/LU-1339561
date created
2011-06-24 11:20:14
date last changed
2017-01-02 09:53:07
@inproceedings{1339561,
  abstract     = {The concept of completely recyclable concrete (CRC) has been developed to close the loop. By adequately incorporating limestone aggregates and industrial by-products, the chemical composition should resemble the composiation of Portland clinker which enables the use of CRC as a raw material in Portland cement production. This paper investigates whether the chemical composition can be adjusted by partially replacing cement with pozzolanic fly ash. CRC mixtures were produced with 50 \% ordinary Portland cement or blast-furnace cement. At the age of one month laboratory clinker and cement were produced from the CRCs. The resulting cement has a low compressive strength and hydraulic reactivity caused by a high belite content, so corrections were necessary. It is concluded that this paper that cement with hydraulic properties can be produced from CRC, but the chemical composition of all used concrete materials needs to be known for recycling without modification.},
  author       = {De Schepper, Mieke and Van den Heede, Philip and De Belie, Nele},
  booktitle    = {RILEM PROCEEDINGS},
  editor       = {Brameshuber, Wolfgang},
  isbn         = {978-2-35158-110-0},
  issn         = {1461-1147},
  language     = {eng},
  location     = {Aachen, Germany},
  pages        = {35--43},
  publisher    = {RILEM Publications},
  title        = {The use of fly ash in completely recyclable concrete},
  volume       = {PRO 77},
  year         = {2010},
}

Chicago
De Schepper, Mieke, Philip Van den Heede, and Nele De Belie. 2010. “The Use of Fly Ash in Completely Recyclable Concrete.” In Rilem Proceedings, ed. Wolfgang Brameshuber, PRO 77:35–43. Bagneux, France: RILEM Publications.
APA
De Schepper, M., Van den Heede, P., & De Belie, N. (2010). The use of fly ash in completely recyclable concrete. In Wolfgang Brameshuber (Ed.), RILEM PROCEEDINGS (Vol. PRO 77, pp. 35–43). Presented at the International RILEM conference on Material Science, Bagneux, France: RILEM Publications.
Vancouver
1.
De Schepper M, Van den Heede P, De Belie N. The use of fly ash in completely recyclable concrete. In: Brameshuber W, editor. RILEM PROCEEDINGS. Bagneux, France: RILEM Publications; 2010. p. 35–43.
MLA
De Schepper, Mieke, Philip Van den Heede, and Nele De Belie. “The Use of Fly Ash in Completely Recyclable Concrete.” Rilem Proceedings. Ed. Wolfgang Brameshuber. PRO 77. Bagneux, France: RILEM Publications, 2010. 35–43. Print.