The nanostructural and microstructural behavior of concrete plays a decisive role in determining the properties of a material. The pore structure of paste, mortar, or concrete affects the behavior of the material and can give insight into the material's nanostructure and microstructure and their performance. Permeability and other durability-related properties of concrete are directly affected by pore structure. The pore structure also influences strength, modulus of elasticity, volume stability, and environmental resistance. Therefore, pore size, extent, and shape are of paramount importance in deciding the suitability of materials for practical applications, and the determination of pore structure has vital importance in evaluating the performance of concrete. This investigation was performed to assess and understand the influence of fly ash and silica fume as cement replacements on the pore structure of mortar. The pore structure study was conducted by using mercury intrusion porosimetry on the cement mortar incorporating fly ash and silica fume as partial cement replacements for the preparation of various combinations of blended systems. It was observed that incorporation of fly ash has a slight pore refinement effect, while inclusion of silica fume significantly improved pore refinement.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Nanostructure and Microstructure of Cement Concrete Incorporating Multicementitious Composites


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:


    Erscheinungsdatum :

    01.01.2010




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Chloride Permeability and Microstructure of Portland Cement Mortars Incorporating Nanomaterials

    He, Xiaodong / Shi, Xianming | Transportation Research Record | 2008


    Cement Concrete Roads

    Sharma, S. C. | British Library Online Contents | 1996


    Cement concrete pavements

    Villemagne, Maurice ;Jeuffroy, Georges | TIBKAT | 1996