Understanding the water absorption from MHEC modified glue mortar into porous tile: influence of pre-drying

A.P.A. Faiyas, S.J.F. Erich (Corresponding author), H.P. Huinink, O.C.G. Adan

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

This article presents an experimental investigation on the influence of Methylhydroxyethylcellulose (MHEC) modified mortar on water absorption into tile and base substrate using Nuclear Magnetic Resonance (NMR) imaging. Addition of MHEC shifts the absorption behavior from homogeneous to inhomogeneous as a result of increased viscosity of pore solution. The observed reverse flow from tile to mortar is a result of decrease in capillary pressure in mortar as a consequence of decrease in pore size due to hydration. Pre-drying of 1.3 wt% MHEC mortar with dry air shows little wetting by tile due to MHEC transport and formation of dry region at the mortar surface. On the contrary, pre-drying of 1.3 wt% MHEC mortar at 40% RH slows down MHEC transport and delays the formation of dry region at the mortar surface enabling higher wetting by tile.

TaalEngels
Pagina's363-371
Aantal pagina's9
TijdschriftConstruction and Building Materials
Volume217
DOI's
StatusGepubliceerd - 30 aug 2019

Vingerafdruk

Glues
Water absorption
Tile
Mortar
Drying
Wetting
Capillarity
methyl hydroxyethyl cellulose
Hydration
Pore size
Nuclear magnetic resonance
Viscosity
Imaging techniques
Substrates
Air

Trefwoorden

    Citeer dit

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    title = "Understanding the water absorption from MHEC modified glue mortar into porous tile: influence of pre-drying",
    abstract = "This article presents an experimental investigation on the influence of Methylhydroxyethylcellulose (MHEC) modified mortar on water absorption into tile and base substrate using Nuclear Magnetic Resonance (NMR) imaging. Addition of MHEC shifts the absorption behavior from homogeneous to inhomogeneous as a result of increased viscosity of pore solution. The observed reverse flow from tile to mortar is a result of decrease in capillary pressure in mortar as a consequence of decrease in pore size due to hydration. Pre-drying of 1.3 wt{\%} MHEC mortar with dry air shows little wetting by tile due to MHEC transport and formation of dry region at the mortar surface. On the contrary, pre-drying of 1.3 wt{\%} MHEC mortar at 40{\%} RH slows down MHEC transport and delays the formation of dry region at the mortar surface enabling higher wetting by tile.",
    keywords = "Admixture, Hydration, MHEC, Microstructure, Moisture transport, Mortar, Tile",
    author = "A.P.A. Faiyas and S.J.F. Erich and H.P. Huinink and O.C.G. Adan",
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    Understanding the water absorption from MHEC modified glue mortar into porous tile : influence of pre-drying. / Faiyas, A.P.A.; Erich, S.J.F. (Corresponding author); Huinink, H.P.; Adan, O.C.G.

    In: Construction and Building Materials, Vol. 217, 30.08.2019, blz. 363-371.

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    TY - JOUR

    T1 - Understanding the water absorption from MHEC modified glue mortar into porous tile

    T2 - Construction and Building Materials

    AU - Faiyas,A.P.A.

    AU - Erich,S.J.F.

    AU - Huinink,H.P.

    AU - Adan,O.C.G.

    PY - 2019/8/30

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    N2 - This article presents an experimental investigation on the influence of Methylhydroxyethylcellulose (MHEC) modified mortar on water absorption into tile and base substrate using Nuclear Magnetic Resonance (NMR) imaging. Addition of MHEC shifts the absorption behavior from homogeneous to inhomogeneous as a result of increased viscosity of pore solution. The observed reverse flow from tile to mortar is a result of decrease in capillary pressure in mortar as a consequence of decrease in pore size due to hydration. Pre-drying of 1.3 wt% MHEC mortar with dry air shows little wetting by tile due to MHEC transport and formation of dry region at the mortar surface. On the contrary, pre-drying of 1.3 wt% MHEC mortar at 40% RH slows down MHEC transport and delays the formation of dry region at the mortar surface enabling higher wetting by tile.

    AB - This article presents an experimental investigation on the influence of Methylhydroxyethylcellulose (MHEC) modified mortar on water absorption into tile and base substrate using Nuclear Magnetic Resonance (NMR) imaging. Addition of MHEC shifts the absorption behavior from homogeneous to inhomogeneous as a result of increased viscosity of pore solution. The observed reverse flow from tile to mortar is a result of decrease in capillary pressure in mortar as a consequence of decrease in pore size due to hydration. Pre-drying of 1.3 wt% MHEC mortar with dry air shows little wetting by tile due to MHEC transport and formation of dry region at the mortar surface. On the contrary, pre-drying of 1.3 wt% MHEC mortar at 40% RH slows down MHEC transport and delays the formation of dry region at the mortar surface enabling higher wetting by tile.

    KW - Admixture

    KW - Hydration

    KW - MHEC

    KW - Microstructure

    KW - Moisture transport

    KW - Mortar

    KW - Tile

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