Viscoelastic properties of fresh cement paste: measuring procedures and influencing parameters
Fresh cement pastes behave as viscoelastic materials below the flow onset. The measurements of viscoelastic properties of fresh cement paste provide valuable insight into the dispersion of solid particles as well as the hydration kinetics at early age and its influence on the structural evolution a...
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| Format: | Article |
| Language: | English |
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RILEM Publications SARL
2023-08-01
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| Series: | RILEM Technical Letters |
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| Online Access: | http://letters.rilem.net/index.php/rilem/article/view/176 |
| _version_ | 1827862845557047296 |
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| author | Ammar Yahia Arnaud Perrot Dimitri Feys Kamal H. Khayat Mohammed Sonebi Shiho Kawashima Wolfram Schimdt |
| author_facet | Ammar Yahia Arnaud Perrot Dimitri Feys Kamal H. Khayat Mohammed Sonebi Shiho Kawashima Wolfram Schimdt |
| author_sort | Ammar Yahia |
| collection | DOAJ |
| description |
Fresh cement pastes behave as viscoelastic materials below the flow onset. The measurements of viscoelastic properties of fresh cement paste provide valuable insight into the dispersion of solid particles as well as the hydration kinetics at early age and its influence on the structural evolution and solidification behavior at quasi-static conditions. Monitoring the development of viscoelastic properties of fresh cement paste using dynamic oscillatory shear measurements can also elucidate the working mechanisms of chemical admixtures. These properties are efficient indicators to guide mixture proportion design and are necessary to understand the rheology and stability of concrete. In this paper, the most common techniques, including dynamic oscillatory measurements, used to assess the viscoelastic properties of fresh cement paste are presented and discussed. The measurement challenges and their effects on the accuracy of the obtained properties are highlighted. On the other hand, the effects of high-range water-reducer, viscosity-modifying admixture, and supplementary cementitious materials are discussed. Furthermore, the use of viscoelastic measurements to assess yield stress and structural build-up of cement paste is presented.
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| first_indexed | 2024-03-12T14:01:23Z |
| format | Article |
| id | doaj.art-00e04e61c1414212996ca468de70379d |
| institution | Directory Open Access Journal |
| issn | 2518-0231 |
| language | English |
| last_indexed | 2024-03-12T14:01:23Z |
| publishDate | 2023-08-01 |
| publisher | RILEM Publications SARL |
| record_format | Article |
| series | RILEM Technical Letters |
| spelling | doaj.art-00e04e61c1414212996ca468de70379d2023-08-22T05:07:16ZengRILEM Publications SARLRILEM Technical Letters2518-02312023-08-01810.21809/rilemtechlett.2023.176Viscoelastic properties of fresh cement paste: measuring procedures and influencing parametersAmmar YahiaArnaud PerrotDimitri FeysKamal H. KhayatMohammed Sonebi0Shiho KawashimaWolfram SchimdtCivil Engineering School of Natural and Built Environment, Queen's University Belfast Fresh cement pastes behave as viscoelastic materials below the flow onset. The measurements of viscoelastic properties of fresh cement paste provide valuable insight into the dispersion of solid particles as well as the hydration kinetics at early age and its influence on the structural evolution and solidification behavior at quasi-static conditions. Monitoring the development of viscoelastic properties of fresh cement paste using dynamic oscillatory shear measurements can also elucidate the working mechanisms of chemical admixtures. These properties are efficient indicators to guide mixture proportion design and are necessary to understand the rheology and stability of concrete. In this paper, the most common techniques, including dynamic oscillatory measurements, used to assess the viscoelastic properties of fresh cement paste are presented and discussed. The measurement challenges and their effects on the accuracy of the obtained properties are highlighted. On the other hand, the effects of high-range water-reducer, viscosity-modifying admixture, and supplementary cementitious materials are discussed. Furthermore, the use of viscoelastic measurements to assess yield stress and structural build-up of cement paste is presented. http://letters.rilem.net/index.php/rilem/article/view/176Viscoelastic propertiesFresh cement pasteRheologyMeasuring techniquesRheometers |
| spellingShingle | Ammar Yahia Arnaud Perrot Dimitri Feys Kamal H. Khayat Mohammed Sonebi Shiho Kawashima Wolfram Schimdt Viscoelastic properties of fresh cement paste: measuring procedures and influencing parameters RILEM Technical Letters Viscoelastic properties Fresh cement paste Rheology Measuring techniques Rheometers |
| title | Viscoelastic properties of fresh cement paste: measuring procedures and influencing parameters |
| title_full | Viscoelastic properties of fresh cement paste: measuring procedures and influencing parameters |
| title_fullStr | Viscoelastic properties of fresh cement paste: measuring procedures and influencing parameters |
| title_full_unstemmed | Viscoelastic properties of fresh cement paste: measuring procedures and influencing parameters |
| title_short | Viscoelastic properties of fresh cement paste: measuring procedures and influencing parameters |
| title_sort | viscoelastic properties of fresh cement paste measuring procedures and influencing parameters |
| topic | Viscoelastic properties Fresh cement paste Rheology Measuring techniques Rheometers |
| url | http://letters.rilem.net/index.php/rilem/article/view/176 |
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