CARBONATION OF CEMENT PASTE WITH SUPPLEMENTARY CEMENTITIOUS MATERIALS INCLUDING THE EFFECT ON CHLORIDE INGRESS AND FROST SALT SCALING

Author(s): Hanne Vanoutrive, Özlem Cizer, Peter Minne, Ilse Van de Voorde, Elke
Gruyaert
Paper Category:proceedings
Book Title: Proceedings of the International Conference on Sustainable Materials,
Systems and Structures (SMSS2019)
Editor(s): Ivana Carević
Stjepan Lakušić
Dirk Schlicke
ISBN: 978-2-35158-217-6
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication Year: 2019
Pages: 22-23
Total Pages: 2
Language: English

Abstract: The production of ordinary Portland cement (OPC) has a significant impact on the global
CO2 emissions. From a sustainability point-of-view, the use of supplementary cementitious
materials (SCMs) such as granulated blast-furnace slag (GBFS) or fly ash (FA) as a partial
replacement of OPC is desirable. Despite the growing gain of the production and consumption
of cement with SCMs over pure OPC, more research is needed to completely understand the
evolution of the microstructure of young cement pastes exposed to environmental attack. This
will lead to a more accurate estimation of the impact of the early removal of formwork or short
curing periods on the durability of concrete structures. Moreover, the reciprocal effect of
combined degradation mechanisms on concrete is not well understood and investigated. For
this, combined durability tests will be performed on concrete specimens with the intent to
optimize the existing service life design models. The research primary focuses on carbonation
of cement pastes and concrete. In a next phase, the impact of carbonation on chloride ingress
and frost salt scaling will be investigated.

Online Publication: 2019
Publication Type: full text
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