The effect of Superabsorbent Polymers (SAP) on perormance of fly ash cementitious mortars exposed to accelerated freezing/thawing conditions

Karol Slawomir Sikora, Agnieszka Klemm

    Research output: Contribution to journalArticle

    Abstract

    The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) ‘protection’ based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.
    Original languageEnglish
    Pages (from-to)255-268
    Number of pages14
    JournalInternational Journal of Computational Methods and Experimental Measurements
    Volume2
    Issue number3
    Publication statusPublished - 2013

    Fingerprint

    Mortar
    Thawing
    Freezing
    Water absorption
    Fly ash
    Snow and ice removal
    Polymers
    Absorption
    Bending strength
    Deterioration
    Water
    Desorption
    Cements
    Scanning electron microscopy
    Cycle
    Evaluate

    Keywords

    • freezing/thawing cycles
    • microstructural characterisation
    • Portland fly ash cement
    • salt crystallisation
    • superabsorbent polymers

    Cite this

    @article{e75f99581efc49649fe000ecb4489c20,
    title = "The effect of Superabsorbent Polymers (SAP) on perormance of fly ash cementitious mortars exposed to accelerated freezing/thawing conditions",
    abstract = "The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) ‘protection’ based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.",
    keywords = "freezing/thawing cycles, microstructural characterisation, Portland fly ash cement, salt crystallisation, superabsorbent polymers",
    author = "Sikora, {Karol Slawomir} and Agnieszka Klemm",
    note = "No DOI available? ET 17-11-14",
    year = "2013",
    language = "English",
    volume = "2",
    pages = "255--268",
    journal = "International Journal of Computational Methods and Experimental Measurements",
    issn = "0219-8762",
    publisher = "World Scientific Publishing",
    number = "3",

    }

    TY - JOUR

    T1 - The effect of Superabsorbent Polymers (SAP) on perormance of fly ash cementitious mortars exposed to accelerated freezing/thawing conditions

    AU - Sikora, Karol Slawomir

    AU - Klemm, Agnieszka

    N1 - No DOI available? ET 17-11-14

    PY - 2013

    Y1 - 2013

    N2 - The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) ‘protection’ based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.

    AB - The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) ‘protection’ based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.

    KW - freezing/thawing cycles

    KW - microstructural characterisation

    KW - Portland fly ash cement

    KW - salt crystallisation

    KW - superabsorbent polymers

    M3 - Article

    VL - 2

    SP - 255

    EP - 268

    JO - International Journal of Computational Methods and Experimental Measurements

    JF - International Journal of Computational Methods and Experimental Measurements

    SN - 0219-8762

    IS - 3

    ER -