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Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete

Elke Gruyaert UGent (2011)
abstract
Sustainability is getting more and more attention during the last years. Also in the concrete and cement industry, attempts are made to minimize the environmental impact. One way to implement this thought, is the use of industrial by-products as cement replacing material. The 'waste' products are upgraded in high-value applications and the need for clinker is reduced. As a consequence, the CO2 emissions and energy demands associated with the clinker production are reduced. This PhD thesis focuses on the use of blast-furnace slag (BFS) as cement replacing material. Blast-furnace slag, a by-product of the steel production, obtains latent-hydraulic properties after rapid cooling and can thus replace clinker in cement. In EN 197-1 (2000), three types of slag cements are defined : CEM III/A (36 - 65 % BFS), CEM III/B (66 - 80 % BFS) and CEM III/C (81 - 95 % BFS)). More recently, in Belgium slag having a technical approval with certification can also be added to the concrete mix as a separate component if combined with an Ordinary Portland cement (OPC) CEM I having a strength class of 42.5 or higher. In 2004, the k-value concept for granulated blast-furnace slag was implemented in the national application document of EN 206-1 (2000). NBN B15-001 (2004) describes the rules which should be applied. Summarizing, the k-value for BFS amounts to 0.9 and the maximum slag content which may be taken into account in the k-values concept is limited (slag-to-cement ratio <= 0.45 or 0.2 depending on the exposure conditions and (prestressed) reinforcement.
Please use this url to cite or link to this publication:
author
promoter
UGent
organization
alternative title
Effect van hoogovenslak als cementvervanging op de hydratatie, microstructuur, sterkte en duurzaamheid van beton
year
type
dissertation (monograph)
subject
pages
345 pages
publisher
Ghent University. Faculty of Engineering and Architecture
place of publication
Ghent, Belgium
defense location
Gent : Faculteit Ingenieurswetenschappen en Architectuur (Jozef Plateauzaal)
defense date
2011-03-15 17:00
ISBN
9789085784128
language
English
UGent publication?
yes
classification
D1
copyright statement
I have retained and own the full copyright for this publication
id
1196122
handle
http://hdl.handle.net/1854/LU-1196122
date created
2011-03-24 13:46:23
date last changed
2011-04-08 13:49:06
@phdthesis{1196122,
  abstract     = {Sustainability is getting more and more attention during the last years. Also in the concrete and cement industry, attempts are made to minimize the environmental impact. One way to implement this thought, is the use of industrial by-products as cement replacing material. The 'waste' products are upgraded in high-value applications and the need for clinker is reduced. As a consequence, the CO2 emissions and energy demands associated with the clinker production are reduced. This PhD thesis focuses on the use of blast-furnace slag (BFS) as cement replacing material.
Blast-furnace slag, a by-product of the steel production, obtains latent-hydraulic properties after rapid cooling and can thus replace clinker in cement. In EN 197-1 (2000), three types of slag cements are defined : CEM III/A (36 - 65 \% BFS), CEM III/B (66 - 80 \% BFS) and CEM III/C (81 - 95 \% BFS)). More recently, in Belgium slag having a technical approval with certification can also be added to the concrete mix as a separate component if combined with an Ordinary Portland cement (OPC) CEM I having a strength class of 42.5 or higher. In 2004, the k-value concept for granulated blast-furnace slag was implemented in the national application document of EN 206-1 (2000). NBN B15-001 (2004) describes the rules which should be applied. Summarizing, the k-value for BFS amounts to 0.9 and the maximum slag content which may be taken into account in the k-values concept is limited (slag-to-cement ratio {\textlangle}= 0.45 or 0.2 depending on the exposure conditions and (prestressed) reinforcement.},
  author       = {Gruyaert, Elke},
  isbn         = {9789085784128},
  language     = {eng},
  pages        = {345},
  publisher    = {Ghent University. Faculty of Engineering and Architecture},
  school       = {Ghent University},
  title        = {Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete},
  year         = {2011},
}

Chicago
Gruyaert, Elke. 2011. “Effect of Blast-furnace Slag as Cement Replacement on Hydration, Microstructure, Strength and Durability of Concrete”. Ghent, Belgium: Ghent University. Faculty of Engineering and Architecture.
APA
Gruyaert, E. (2011). Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete. Ghent University. Faculty of Engineering and Architecture, Ghent, Belgium.
Vancouver
1.
Gruyaert E. Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete. [Ghent, Belgium]: Ghent University. Faculty of Engineering and Architecture; 2011.
MLA
Gruyaert, Elke. “Effect of Blast-furnace Slag as Cement Replacement on Hydration, Microstructure, Strength and Durability of Concrete.” 2011 : n. pag. Print.