AMORPH

Analysis and Modelling of the Reactivity of Pozzolans during Cement Hydration

Coordinatore	ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE    more  Organization address address: BATIMENT CE 3316 STATION 1 city: LAUSANNE postcode: 1015 contact info Titolo: Prof. Nome: Karen Cognome: Scrivener Email: send email Telefono: +41 21 693 58 43
Nazionalità Coordinatore	Switzerland [CH]
Totale costo	192˙622 €
EC contributo	192˙622 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2011-IEF
Funding Scheme	MC-IEF
Anno di inizio	2012
Periodo (anno-mese-giorno)	2012-06-01   -   2014-05-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE  Organization address address: BATIMENT CE 3316 STATION 1 city: LAUSANNE postcode: 1015 contact info Titolo: Prof. Nome: Karen Cognome: Scrivener Email: send email Telefono: +41 21 693 58 43	CH (LAUSANNE)	coordinator	192˙622.20

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 Obiettivo del progetto (Objective)

'Currently, the annual global cement production is estimated to be 3.3 billion tons1. Even though the CO2 emissions associated with the final product, concrete, are low, the massive scale of production, means that the cement industry accounts for 5-8 % of the global annual anthropogenic CO2 emissions3. One of the most effective ways to improve sustainability is the blending of Portland cement with supplementary cementitious materials (SCMs)2,3. However many local sources are fully exploited and a decline in production of blastfurnace slags and fly ash is expected due to future developments in steel and electricity production4. Therefore locally available alternatives to these traditional SCMs need to be found to achieve higher cement replacement levels and a more sustainable cement industry. Unravelling the impact of this expanding and diversified group of SCMs on the hydration reactions and performance of cement constitutes a major scientific challenge. The diversity of SCMs calls for novel generic approaches that will enable direct prediction and control of performance; compared to the current practice of case-by-case empirical testing. This project proposes a novel interdisciplinary approach, building on the geological background of the fellow combined with the materials science perspective of the host. Novel concepts of surface chemistry, recently developed in geochemistry, will be applied to the behaviour of SCMs in cement. The focus will be on investigating the effect of SCM and solution chemistry on the rate of the nanoscale surface processes of dissolution and precipitation. The impact of SCMs on the product assemblage and microstructure will be modelled and compared to experiment, exploiting recent breakthroughs in thermodynamic and microstructure modelling of cement systems. Finally, the results obtained will be transferred to practice through practical methodologies for testing SCM reactivity in a basic laboratory environment.'

Introduzione (Teaser)

Cement continues to be an important global construction material. EU-funded scientists developed models and experimental methods to facilitate utilisation of waste streams as supplementary cementing materials (SCMs) for greater sustainability.