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Characterization and mechanical properties of non-cement binder based on Czech coal combustion by-products

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918801" target="_blank" >RIV/60461373:22310/19:43918801 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.iccc2019.org/abstracts-and-papers/" target="_blank" >https://www.iccc2019.org/abstracts-and-papers/</a>

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Characterization and mechanical properties of non-cement binder based on Czech coal combustion by-products

  • Original language description

    This investigation was focused on the preparation and characterization of non-cement binder based on Czech ashes produced by brown coal power plants. Furthermore, some mechanical properties were measured to confirm its potential use in the construction industry. First, sulfocalcic ashes (SC ash, mostly called FBC ash) and their hydrated products were studied. A ternary binder (TB) was prepared using a pulverized coal combustion fly ash (PCC FA), sulfocalcic ash, Ca(OH)2 and a superplasticizer. Quantitative XRD analysis was used to determine the amount of amorphous phase by Rietveld method using an internal standard. The XRD mineralogy of the ternary binder was ettringite, quartz, mullite accompanied by minority phases as CaCO3, Ca(OH)2, anhydrite AII, hematite and TiO2. C-A-S-H phase (Al substituted tobermorite) was found in the ternary binder by SEM/EDX method and by MAS NMR analysis. Mechanical properties, especially the values of compressive strength, obtained from the ternary binder were comparable to that of Portland cement (PC). It was found the hydrated ternary binder exhibits a long-term resistance to the action of aggressive solutions of salts. The ternary binder seems to be a perspective economic material in comparison to PC for utilization in the construction industry.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20501 - Materials engineering

Result continuities

  • Project

    <a href="/en/project/FV30062" target="_blank" >FV30062: Possibilities of utilization of coal-ash from power stations stored at stock piles</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    PAPERS AND POSTERS PROCEEDINGS 15th International Congress on the Chemistry of Cement

  • ISBN

  • ISSN

    2523-935X

  • e-ISSN

  • Number of pages

    9

  • Pages from-to

    "neuvedeno"

  • Publisher name

    Research Institute of Binding Materials Prague Ltd.

  • Place of publication

    Prague

  • Event location

    Praha

  • Event date

    Sep 16, 2019

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article