Porosity and Sorptivity of Aerated Concrete with Different Aluminium Powder Content

Rana Shabbar, Paul Nedwell, Moira Wilson, Zhang-Jian Wu

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The purpose of this paper is an investigation of porosity and sorptivity of aerated concrete with varying percentage additions of aluminium powder between 0.25% and 0.75%. The bulk density, porosity and sorptivity were determined after 28 days of water curing. The results show that the highest density of aerated concrete was with 0.25% aluminium powder. The porosity values obtained by vacuum saturation were consistently formed to be higher than those obtained by soaking which suggests that the soaking method does not access all the pore space. Also, the capillary suction of aerated concrete as assessed by sorptivity was significantly higher than that measured by coefficient of water absorption method.
    Original languageEnglish
    Title of host publicationProceedings of 2016 2nd International Conference on Architecture, Structures and Civil Engineering
    Place of PublicationLondon
    Number of pages7
    Publication statusPublished - 26 Mar 2016

    Keywords

    • Aerated concrete, density, porosity, sorptivity and aluminium powder content

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