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    Permeability measurement of fresh cement paste

    New search for: Picandet, V.
    New search for: Rangeard, D.
    New search for: Perrot, A.
    New search for: Lecompte, T.

    Abstract Fresh cement paste permeability is a key parameter to understand the hydro-mechanical behavior of cement-based materials, i.e., rhelogical properties and static stability. However, its permeability measurement is not easy to assess. The porous medium is not rigid and tends to change due to hydration kinetics. Two measurement methods, with 70mm and 20mm initial height specimens respectively, are presented and compared in this paper. The first uses a basic cell of soil permeability measurement and consists of simultaneous consolidation and percolation tests. The second uses a displacement-controlled oedometer cell equipped with pore water pressure transducers, and consists in inducing consolidation to a given void ratio first and, consecutively, in accurately measuring the permeability. A good correlation of results is observed. A comparison with theoretical models confirms that, from one fitted parameter relative to particle characteristics, a relationship between permeability and void ratio can be established.

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    Permeability measurement of fresh cement paste

    New search for: Picandet, V.
    New search for: Rangeard, D.
    New search for: Perrot, A.
    New search for: Lecompte, T.

    Abstract Fresh cement paste permeability is a key parameter to understand the hydro-mechanical behavior of cement-based materials, i.e., rhelogical properties and static stability. However, its permeability measurement is not easy to assess. The porous medium is not rigid and tends to change due to hydration kinetics. Two measurement methods, with 70mm and 20mm initial height specimens respectively, are presented and compared in this paper. The first uses a basic cell of soil permeability measurement and consists of simultaneous consolidation and percolation tests. The second uses a displacement-controlled oedometer cell equipped with pore water pressure transducers, and consists in inducing consolidation to a given void ratio first and, consecutively, in accurately measuring the permeability. A good correlation of results is observed. A comparison with theoretical models confirms that, from one fitted parameter relative to particle characteristics, a relationship between permeability and void ratio can be established.

    Access

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    Order at Subito €

    Permeability measurement of fresh cement paste

    New search for: Picandet, V.
    New search for: Rangeard, D.
    New search for: Perrot, A.
    New search for: Lecompte, T.

    Abstract Fresh cement paste permeability is a key parameter to understand the hydro-mechanical behavior of cement-based materials, i.e., rhelogical properties and static stability. However, its permeability measurement is not easy to assess. The porous medium is not rigid and tends to change due to hydration kinetics. Two measurement methods, with 70mm and 20mm initial height specimens respectively, are presented and compared in this paper. The first uses a basic cell of soil permeability measurement and consists of simultaneous consolidation and percolation tests. The second uses a displacement-controlled oedometer cell equipped with pore water pressure transducers, and consists in inducing consolidation to a given void ratio first and, consecutively, in accurately measuring the permeability. A good correlation of results is observed. A comparison with theoretical models confirms that, from one fitted parameter relative to particle characteristics, a relationship between permeability and void ratio can be established.

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    Title:

    Permeability measurement of fresh cement paste

    Contributors:

    Picandet, V. (author) / Rangeard, D. (author) / Perrot, A. (author) / Lecompte, T. (author)

    Published in:

    Cement and Concrete Research ; 41 ; 330-338

    Publication date:

    2010-11-30

    Size:

    9 pages

    ISSN:

    0008-8846

    DOI:

    https://doi.org/10.1016/j.cemconres.2010.11.019

    Type of media:

    Article (Journal)

    Type of material:

    Electronic Resource

    Language:

    English

    Keywords:

    Permeability [C] , Fresh concrete [A] , Rheology [A] , Cement paste [D] , Forming process [A]

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