Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear Rheometer
To successfully process concrete, it is necessary to predict and control its flow behavior. However, the workability of concrete is not completely measured or specified by current standard tests. Furthermore, it is only with a clear picture of cement hydration and setting that full prediction and co...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/6303681 |
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| author | Yoo Jae Kim Bum-Yean Cho Soon-Jae Lee Jiong Hu James W. Wilde |
| author_facet | Yoo Jae Kim Bum-Yean Cho Soon-Jae Lee Jiong Hu James W. Wilde |
| author_sort | Yoo Jae Kim |
| collection | DOAJ |
| description | To successfully process concrete, it is necessary to predict and control its flow behavior. However, the workability of concrete is not completely measured or specified by current standard tests. Furthermore, it is only with a clear picture of cement hydration and setting that full prediction and control of concrete performance can be generalized. In order to investigate the rheological properties of blended cement pastes, a rotational viscometer (RV) was used to determine the flow characteristics of ordinary and blended pastes to provide assurance that it can be pumped and handled. Additionally, a dynamic shear rheometer (DSR) was used to characterize both the viscous and elastic components of pastes. Ordinary Portland cement paste and blended pastes (slag, fly ash, and silica fume) were investigated in this study. The stress and strain of the blended specimens were measured by the DSR, which characterizes both viscous and elastic behaviors by measuring the complex shear modulus (the ratio of total shear stress to total shear strain) and phase angle (an indicator of the relative amounts of recoverable and nonrecoverable deformation) of materials. Cement pastes generally exhibit different rheological behaviors with respect to age, mineral admixture type, and cement replacement level. |
| format | Article |
| id | doaj-art-3c8c5b209c8148adbf177a8df3ef76b7 |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-3c8c5b209c8148adbf177a8df3ef76b72025-08-20T02:39:08ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/63036816303681Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear RheometerYoo Jae Kim0Bum-Yean Cho1Soon-Jae Lee2Jiong Hu3James W. Wilde4Department of Engineering Technology, Texas State University, 601 University Drive, San Marcos, TX 78666, USADepartment of Architectural Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of KoreaDepartment of Engineering Technology, Texas State University, 601 University Drive, San Marcos, TX 78666, USADepartment of Civil Engineering, University of Nebraska-Lincoln, 1400 R Street, Lincoln, NE 68588, USADepartment of Engineering Technology, Texas State University, 601 University Drive, San Marcos, TX 78666, USATo successfully process concrete, it is necessary to predict and control its flow behavior. However, the workability of concrete is not completely measured or specified by current standard tests. Furthermore, it is only with a clear picture of cement hydration and setting that full prediction and control of concrete performance can be generalized. In order to investigate the rheological properties of blended cement pastes, a rotational viscometer (RV) was used to determine the flow characteristics of ordinary and blended pastes to provide assurance that it can be pumped and handled. Additionally, a dynamic shear rheometer (DSR) was used to characterize both the viscous and elastic components of pastes. Ordinary Portland cement paste and blended pastes (slag, fly ash, and silica fume) were investigated in this study. The stress and strain of the blended specimens were measured by the DSR, which characterizes both viscous and elastic behaviors by measuring the complex shear modulus (the ratio of total shear stress to total shear strain) and phase angle (an indicator of the relative amounts of recoverable and nonrecoverable deformation) of materials. Cement pastes generally exhibit different rheological behaviors with respect to age, mineral admixture type, and cement replacement level.http://dx.doi.org/10.1155/2018/6303681 |
| spellingShingle | Yoo Jae Kim Bum-Yean Cho Soon-Jae Lee Jiong Hu James W. Wilde Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear Rheometer Advances in Materials Science and Engineering |
| title | Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear Rheometer |
| title_full | Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear Rheometer |
| title_fullStr | Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear Rheometer |
| title_full_unstemmed | Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear Rheometer |
| title_short | Investigation of Rheological Properties of Blended Cement Pastes Using Rotational Viscometer and Dynamic Shear Rheometer |
| title_sort | investigation of rheological properties of blended cement pastes using rotational viscometer and dynamic shear rheometer |
| url | http://dx.doi.org/10.1155/2018/6303681 |
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