Home
Home
    • Home
    • About us
      • About CTAC
      • Organization
      • Regulation
    • People
      • Members
      • Positions available
    • Research
      • Vision
      • Research Areas
        • Construction Materials and Technologies
        • Hydraulics and Environment
        • Territory
      • Ongoing Research Projects
      • Research Projects 2018-2022
      • Past Projects
    • Facilities
      • Construction Materials and Technologies
      • Hydraulics and Environment
      • Territory
    • Publications
      • All
      • Books
      • Book Chapters
      • Papers in Scientific Journals
      • Conference Comunications
      • PhD Thesis
      • Masters Thesis
      • Journal
      • RepositoriUM
    • Education
      • Doctoral Programme Infrarisk
      • Doctoral Programme in Civil Engineering
      • Doctoral Programme in Eco Construction and Rehabilitation
      • Doctoral Programme of Solid Waste Management and Treatment
      • International Doctorate in Sustainable Built Environment
        • International Doctorate in Sustainable Built Environment
      • Master's Degree in Civil Engineering
      • Master's Degree in Sustainable Built Environment
      • Master's Degree in Urban Engineering
      • Master´s Degree in Sustainable Construction and Rehabilitation
    • Partners
    • Events
    • News
    • SITAC
    Filter

    Publications

    Papers in International JournalsChapters/ Papers in International BooksChapters/ Papers in National BooksCommunications in International ConferencesCommunications in National ConferencesMSc ThesesBooksProceedingsPatentsTechnical/ Scientific ReportsPhD Theses
    @JournalArticle {2788,
    	title = {Evaluation of Hydration of Cement Pastes Containing High Volume of Mineral Additions},
    	journal = {European Journal of Environmental and Civil Engineering},
    	year = {2017},
    	month = {2017-05-22 00:00:00},
    	pages = {1-17},
    	publisher = {Taylor \& Francis},
    	abstract = {

    The use of mineral additions is a common practice in the production of cementitious materials. Recently proposed usage of high amounts of cement replaced by mineral additions requires the study of the chemical interaction of these additions with the cement. This study intends to evaluate, by means of TG/DTG techniques, XRD and compressive strength, the effect of high volume of mineral additions in the hydration of cementitious pastes. Pastes with 50{\textendash}70\% of cement replaced by mineral addition and with different combinations of fly ash\ and metakaolin were evaluated, two pastes without mineral addition and two other pastes with lime addition. Results showed TG/DTG and XRD techniques are more suitable for evaluating kinetics of reactions of hydration, making it possible to quantify the substantial reduction in the levels of portlandite in hydrated pastes containing high volumes of mineral additions. These techniques allowed to find important differences in the evaluation of calcium hydroxide, because its morphology can change in the presence of additions. Also showed that it is possible to achieve, enhanced or even high compressive strength (50{\textendash}80\ MPa) in concretes containing reduced cement contents. As well as more resistance against harmful agents and carbonation attack.

    }, keywords = {cement hydration, Mineral additions, Portland cement, TG/DTG, XRD}, issn = {19648189, 21167214}, doi = {10.1080/19648189.2017.1327892}, url = {http://www.tandfonline.com/doi/full/10.1080/19648189.2017.1327892}, author = {Anjos, M. A. S. and Reis, R. and Cam{\~o}es, A. and Duarte, F. and Jesus, C.} }

    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 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more


    Watch the CTAC Institutional Video

    Journal

    Research Areas of Competence

    Construction Materials and Technologies
    Hydraulics and Environment
    Territory

    News

    Contact us

    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


    Copyright 2014 CTAC Research Group in Territory, Environment and Construction
    Website Credits