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    Papers in International JournalsChapters/ Papers in International BooksChapters/ Papers in National BooksCommunications in International ConferencesCommunications in National ConferencesMSc ThesesBooksProceedingsPatentsTechnical/ Scientific ReportsPhD Theses
    @conference {2120,
    	title = {PERFORMANCE OF FLY ASH-BASED GEOPOLYMER MORTAR},
    	journal = {European Mortar Summit 2015},
    	year = {2015},
    	month = {2015-05-21 00:00:00},
    	pages = {40-52},
    	address = {Lisboa},
    	abstract = {

    This study has investigated the joint effect of several mix parameters on the properties of
    foam geopolymers. The mix parameters analysed through a laboratory experiment of 54
    different mortar mixes were, sodium silicate/sodium hydroxide mass ratio (2.5, 3.5, 4.5),
    activator/binder mass ratio (0.6, 0.8, 1.0), chemical foaming agent type (hydrogen peroxide
    (H2O2) and sodium perborate (NaBO3)) and foaming agent mass ratio content (1\%, 2\%, 3\%).
    Properties, SEM and FTIR analysis and cost analysis are included. The results show that the
    sodium perborate over performs hydrogen peroxide leading to a lower overall thermal
    conductibility of foam geopolymers. The use of an activator/binder ratio of 0.8 a sodium
    silicate/sodium hydroxide of 2.5 led to the lowest thermal conductivity. Mixtures with a low
    thermal conductivity of around 0.1 W/(m.{\textordmasculine}K) and a compressive strength of around 6 MPa
    were achieved. The cost analysis show that the foaming agents are responsible for a small
    percentage of foam geopolymers total cost (less than 10\%) being that the alkaline activators
    are responsible for more than 80\%.

    }, keywords = {cost analysis, Energy Efficiency, Foam geopolymers, Mix design, Thermal insulators}, author = {Abdollahnejad, Z. and Felix, T. and Pacheco-Torgal, F. and Aguiar, J. B.} }

    About CTAC

    The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.

    Currently CTAC aggregates 24 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more


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    Centro de Território, Ambiente e Construção
    Escola de Engenharia da Universidade do Minho
    Campus de Azurém
    4800-058 Guimarães, Portugal

    Phone: + 351 253 510 200 (517 206)
    Fax: + 351 253 510 217

    Email: geral@ctac.uminho.pt


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