<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

Published Online: Dec 01, 2018

Page range: 107 - 125

Received: Feb 25, 2018

Accepted: May 28, 2018

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

Keywords
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

Published Online: Dec 01, 2018

Page range: 107 - 125

Received: Feb 25, 2018

Accepted: May 28, 2018

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

Keywordsstability, 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.

Keywords
stability, sedimentation, bleeding, zeta-potential, filler, water reducer