Carbonation Resistance of Alkali-Activated Slag Under Natural and Accelerated Conditions

Marija Nedeljkovic, Yibing Zuo, Kamel Arbi, Guang Ye

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

The use of alkali-activated slag (AAS) has been recognised for a long time as an
alternative solution to Ordinary Portland cement-based binders. However, the
durability of AAS-based binders is still unknown1, which limits their application in engineering practice. Carbonation is of the great interest for AAS since it induces both chemical and physical changes. The change of the pore structure after carbonation and CO2 uptake for AAS are rarely reported. This paper investigates the carbonation of AAS pastes in natural (laboratory and outdoors (unsheltered)) and accelerated conditions. The effect of the different exposure conditions on AAS pastes was studied in terms of the gel pore structure, chemical and mechanical properties.
Original languageEnglish
Title of host publicationProceedings of the 5th International Slag Valorisation Symposium
Subtitle of host publicationLeuven, 03-05/04/2017
Pages329-332
Publication statusPublished - 2018
Event5th International Slag Valorisation Symposium - Leuven, Belgium
Duration: 3 Apr 20185 Apr 2018
Conference number: 5
http://slag-valorisation-symposium.eu/2017/

Conference

Conference5th International Slag Valorisation Symposium
CountryBelgium
CityLeuven
Period3/04/185/04/18
Internet address

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