Filler and Water Reducer Effects on Sedimentation, Bleeding and Zeta-Potential of Cement Paste-Reference-Cited by-同舟云学术

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

Published:2018-06-01 Issue:1 Volume:58 Page:107-125
ISSN:2545-2819
Container-title:Nordic Concrete Research
language:en
Short-container-title:

Author:

Peng Ya¹,Pedersen Bård²,Ng Serina³,de Weerdt Klaartje⁴,Jacobsen Stefan⁵

Affiliation:

1. Post Doc. Researcher, Dept of Structural Eng. , NTNU , N-7491 Trondheim

2. Senior Principal Engineer, Norwegian Public Roads Administration (NPRA), N-0033 Oslo

3. Scientist, Building and Infrastructure, Sintef, N-7491 Trondheim

4. Associate Professor, Dept of Structural Eng ., NTNU , N-7491 Trondheim

5. Professor, Dept of Structural Eng ., NTNU , N-7491 Trondheim

Abstract

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.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/ncr-2018-0007

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