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Transport properties of high-volume fly ash concrete: capillary water sorption, water sorption under vacuum and gas permeability

Philip Van den Heede UGent, Elke Gruyaert UGent and Nele De Belie UGent (2010) CEMENT & CONCRETE COMPOSITES. 32(10). p.749-756
abstract
Studying concrete's resistance to carbonation-induced corrosion usually involves exposing the material to CO2 for quite some time. To estimate the performance of high-volume fly ash (HVFA) concrete more quickly, two key properties governing this process can be studied, namely water penetrability and gas permeability. With respect to HVFA mixtures optimized for usage in an environment exposed to carbonation with wetting and drying, we adopted the latter approach. This paper presents a full assessment of concrete mixtures with varying fly ash amounts. A 50% fly ash mixture by mass with a binder content of 400 kg/m(3) and a water-to-binder ratio of 0.4 had a lower capillary water uptake (-32.6%), water sorption under vacuum (-10.7%) and gas permeability (-78.9%) than a proper reference normally used in this environment. The fly ash applied had an excellent quality regarding loss on ignition (3.5%) and fineness (19% retained on a 45 mu m sieve).
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Transport properties, Porosity, Concrete mix design, Durability, CEMENT, POROSITY, Pozzolans
journal title
CEMENT & CONCRETE COMPOSITES
Cem. Concr. Compos.
volume
32
issue
10
pages
749 - 756
Web of Science type
Article
Web of Science id
000284456600001
JCR category
CONSTRUCTION & BUILDING TECHNOLOGY
JCR impact factor
1.527 (2010)
JCR rank
6/53 (2010)
JCR quartile
1 (2010)
ISSN
0958-9465
DOI
10.1016/j.cemconcomp.2010.08.006
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1261794
handle
http://hdl.handle.net/1854/LU-1261794
date created
2011-06-14 13:34:19
date last changed
2016-12-19 15:42:48
@article{1261794,
  abstract     = {Studying concrete's resistance to carbonation-induced corrosion usually involves exposing the material to CO2 for quite some time. To estimate the performance of high-volume fly ash (HVFA) concrete more quickly, two key properties governing this process can be studied, namely water penetrability and gas permeability. With respect to HVFA mixtures optimized for usage in an environment exposed to carbonation with wetting and drying, we adopted the latter approach. This paper presents a full assessment of concrete mixtures with varying fly ash amounts. A 50\% fly ash mixture by mass with a binder content of 400 kg/m(3) and a water-to-binder ratio of 0.4 had a lower capillary water uptake (-32.6\%), water sorption under vacuum (-10.7\%) and gas permeability (-78.9\%) than a proper reference normally used in this environment. The fly ash applied had an excellent quality regarding loss on ignition (3.5\%) and fineness (19\% retained on a 45 mu m sieve).},
  author       = {Van den Heede, Philip and Gruyaert, Elke and De Belie, Nele},
  issn         = {0958-9465},
  journal      = {CEMENT \& CONCRETE COMPOSITES},
  keyword      = {Transport properties,Porosity,Concrete mix design,Durability,CEMENT,POROSITY,Pozzolans},
  language     = {eng},
  number       = {10},
  pages        = {749--756},
  title        = {Transport properties of high-volume fly ash concrete: capillary water sorption, water sorption under vacuum and gas permeability},
  url          = {http://dx.doi.org/10.1016/j.cemconcomp.2010.08.006},
  volume       = {32},
  year         = {2010},
}

Chicago
Van den Heede, Philip, Elke Gruyaert, and Nele De Belie. 2010. “Transport Properties of High-volume Fly Ash Concrete: Capillary Water Sorption, Water Sorption Under Vacuum and Gas Permeability.” Cement & Concrete Composites 32 (10): 749–756.
APA
Van den Heede, P., Gruyaert, E., & De Belie, N. (2010). Transport properties of high-volume fly ash concrete: capillary water sorption, water sorption under vacuum and gas permeability. CEMENT & CONCRETE COMPOSITES, 32(10), 749–756.
Vancouver
1.
Van den Heede P, Gruyaert E, De Belie N. Transport properties of high-volume fly ash concrete: capillary water sorption, water sorption under vacuum and gas permeability. CEMENT & CONCRETE COMPOSITES. 2010;32(10):749–56.
MLA
Van den Heede, Philip, Elke Gruyaert, and Nele De Belie. “Transport Properties of High-volume Fly Ash Concrete: Capillary Water Sorption, Water Sorption Under Vacuum and Gas Permeability.” CEMENT & CONCRETE COMPOSITES 32.10 (2010): 749–756. Print.