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Properties of Fine-Grained Concrete with Admixture of Diatomite Powder

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00333265" target="_blank" >RIV/68407700:21110/19:00333265 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1088/1757-899X/603/2/022045" target="_blank" >http://dx.doi.org/10.1088/1757-899X/603/2/022045</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1088/1757-899X/603/2/022045" target="_blank" >10.1088/1757-899X/603/2/022045</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Properties of Fine-Grained Concrete with Admixture of Diatomite Powder

  • Original language description

    The paper reports on the experimental assessment of the physical properties of finegrained cement-based composites whose composition was enriched with admixture of diatomite powder. Diatomaceous earth, due to its origin and availability, represents highly valuable low cost material that can dispose with high pozzlanic activity. On this account, it can help to mitigate the quantity of used Portland cement, and thus enable to reduce the cost of produced cementbased composites, and accordingly decrease harmful environmental impacts of cement production, especially CO2 emission. In this work, possible use of diatomite powder as partial Portland cement replacement in concrete compoistion was studied. The cement replacement ratio was 5 %, 10 %, 15 %, and 20 % by volume. Reference concrete mixture was prepared as well. The water/binder ratio was 0.5, and was kept similar for all prepared composite mixtures. For 28 days water cured samples, bulk density, specific density, strength parameters, and thermophysical properties were tested. Results of experimental analysis showed high pozzolanic activity of diatomite resulting in reduced porosity and increased mechanical resistance of the developed concretes. The highly porous structure of diatomite particles helped to decrease concrete heat transport properties, despite of low total open porosity of the tested specimens.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20501 - Materials engineering

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

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

    IOP Conf. Series: Materials Science and Engineering

  • ISBN

  • ISSN

    1757-899X

  • e-ISSN

    1757-899X

  • Number of pages

    6

  • Pages from-to

  • Publisher name

    IOP Publishing Ltd.

  • Place of publication

    Bristol

  • Event location

    Praha

  • Event date

    Jun 17, 2019

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article