<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Bleeding and sedimentation quantify the stability of fresh cement paste, whereas the addition of fillers and water reducers affect the stability. The effect of various types of fillers and water reducers was investigated by measuring bleeding, hydrostatic pressure and electroacoustic zeta-potential. Depending on their characteristics and use, fillers can improve stability by reducing sedimentation rate and bleeding. The combined effects of fillers and water reducers on the sedimentation rates, quantified as time-dependent hydrostatic pressure changes (<italic>dp/dt</italic>) in fresh matrix, correspond to their effects on zeta-potentials. The influence of the water reducers on sedimentation and bleeding exceed that of filler type.</p></abstract>

Bleeding and sedimentation quantify the stability of fresh cement paste, whereas the addition of fillers and water reducers affect the stability. The effect of various types of fillers and water reducers was investigated by measuring bleeding, hydrostatic pressure and electroacoustic zeta-potential. Depending on their characteristics and use, fillers can improve stability by reducing sedimentation rate and bleeding. The combined effects of fillers and water reducers on the sedimentation rates, quantified as time-dependent hydrostatic pressure changes (dp/dt) in fresh matrix, correspond to their effects on zeta-potentials. The influence of the water reducers on sedimentation and bleeding exceed that of filler type.

Filler and Water Reducer Effects on Sedimentation, Bleeding and Zeta-Potential of Cement Paste

Nordic Concrete Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Bleeding and sedimentation quantify the stability of fresh cement paste, whereas the addition of fillers and water reducers affect the stability. The effect of...

Filler and Water Reducer Effects on Sedimentation, Bleeding and Zeta-Potential of Cement Paste

Publié en ligne: 01 déc. 2018

Pages: 107 - 125

Reçu: 25 févr. 2018

Accepté: 28 mai 2018

DOI: https://doi.org/10.2478/ncr-2018-0007

Mots clés
stability, sedimentation, bleeding, zeta-potential, filler, water reducer

© 2018 Ya Peng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Filler and Water Reducer Effects on Sedimentation, Bleeding and Zeta-Potential of Cement Paste

Publié en ligne: 01 déc. 2018

Pages: 107 - 125

Reçu: 25 févr. 2018

Accepté: 28 mai 2018

DOI: https://doi.org/10.2478/ncr-2018-0007

Mots clésstability, sedimentation, bleeding, zeta-potential, filler, water reducer

© 2018 Ya Peng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
stability, sedimentation, bleeding, zeta-potential, filler, water reducer