Herfort, Duncan

Kirkegaard, Lise Frank

Moesgaard, Mette

Yue, Yuanzheng

English

    Aalborg UniversitetGlassy particles as an active component in cementitious materials for the futureMoesgaard, Mette; Kirkegaard, Lise Frank; Herfort, Duncan; Yue, YuanzhengPublication date:2010Document VersionEarly version, also known as pre-printLink to publication from Aalborg UniversityCitation for published version (APA):Moesgaard, M., Kirkegaard, L. F., Herfort, D., & Yue, Y. (2010). Glassy particles as an active component incementitious materials for the future. Abstract from 2010 Glass and Optical Materials Division Annual Meeting, .General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            ? Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            ? You may not further distribute the material or use it for any profit-making activity or commercial gain            ? You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: November 29, 2020Glassy particles as an active component in cementitious materials for the future  Mette Moesgaard a, Lise Frank Kirkegaardb,  Duncan Herfort b, Yuanzheng Yue* a a Section of Chemistry, Aalborg University, DK-9000 Aalborg, Denmark b Aalborg Portland, DK-9000 Aalborg, Denmark   5% of the global CO2 emissions from human activity come from the production of Portland cement clinker (PCC), the major constituent in Portland cement. This work focuses on reducing this CO2 emission by replacing PCC with suitably reactive glass particles. We attempt to find the optimum composition of the particles with respect to e.g. limestone consumption and melting temperature. In this work, we investigate pozzolanic reactivity of the glass, i.e., the ability of the glass to participate in the strength developing reactions taking place during cement hydration. The pozzolanic reactivity is tested as the reactivity of the glass in a saturated Ca(OH)2 solution which reproduces the conditions in a cement paste. Compressive strength is tested for mortars with 30 wt% substitution of cement with glass particles or with a mixture of glass and limestone. In general, promising strengths are observed for these blended cements. Mortars containing both glass and limestone exhibit the highest strengths.    Key word Supplementary cementitious materials CO2 emission Pozzolanic reactivity 

Glassy particles as an active component in cementitious materials for the future

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Glassy particles as an active component in cementitious materials for the future

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