Fabricating a new Rheometer for Concrete
A new concrete rheometer is introduced including its innovation, actual design, working rules, calibration, and reliability. A modified design of Tattersall two-point device is created. Some of components are purchased from local and foreign markets, while other components and the manufacturing pro...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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University of Baghdad
2023-07-01
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| Series: | Journal of Engineering |
| Subjects: | |
| Online Access: | https://joe.uobaghdad.edu.iq/index.php/main/article/view/2141 |
| _version_ | 1797782936949358592 |
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| author | Rafa Hashem Shaker Nada Mahdi Fawzi Laith Al-Jabri |
| author_facet | Rafa Hashem Shaker Nada Mahdi Fawzi Laith Al-Jabri |
| author_sort | Rafa Hashem Shaker |
| collection | DOAJ |
| description |
A new concrete rheometer is introduced including its innovation, actual design, working rules,
calibration, and reliability. A modified design of Tattersall two-point device is created. Some of
components are purchased from local and foreign markets, while other components and the
manufacturing process are locally fabricated. The matching viscosity method of determining the mixer
viscometer constants is demonstrated and followed to relate torque and rotational speed to yield stress
and viscosity (Bingham parameters). The calibration procedures and its calculation are explained.
Water is used as a Newtonian fluid, while; cement paste (cement + water) with w/c ratio equal to
(0.442) is used as a non-Newtonian fluid. The cement paste is tested in “Petroleum Research and
Development Center” by “OFITE Model 800 Viscometer”. In order to verify the reliability of the new
rheometer, an Artificial Neural Network (ANN) model with a well selected bank of data is constructed;
and (16) Mixes of Self Compacting Concrete (SCC) are constructed, mixed and tested by the new
Rheometer. The results from model (predicted) and those from the experimental work (measured) were
found to have very good degrees of correlation and matching, which indicates that the new rheometer
can be reliable.
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| first_indexed | 2024-03-13T00:18:01Z |
| format | Article |
| id | doaj.art-0bae505d1a21477aad7d0f549e67b927 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-13T00:18:01Z |
| publishDate | 2023-07-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-0bae505d1a21477aad7d0f549e67b9272023-07-11T18:34:19ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392023-07-01200510.31026/j.eng.2014.05.01Fabricating a new Rheometer for ConcreteRafa Hashem ShakerNada Mahdi Fawzi Laith Al-Jabri A new concrete rheometer is introduced including its innovation, actual design, working rules, calibration, and reliability. A modified design of Tattersall two-point device is created. Some of components are purchased from local and foreign markets, while other components and the manufacturing process are locally fabricated. The matching viscosity method of determining the mixer viscometer constants is demonstrated and followed to relate torque and rotational speed to yield stress and viscosity (Bingham parameters). The calibration procedures and its calculation are explained. Water is used as a Newtonian fluid, while; cement paste (cement + water) with w/c ratio equal to (0.442) is used as a non-Newtonian fluid. The cement paste is tested in “Petroleum Research and Development Center” by “OFITE Model 800 Viscometer”. In order to verify the reliability of the new rheometer, an Artificial Neural Network (ANN) model with a well selected bank of data is constructed; and (16) Mixes of Self Compacting Concrete (SCC) are constructed, mixed and tested by the new Rheometer. The results from model (predicted) and those from the experimental work (measured) were found to have very good degrees of correlation and matching, which indicates that the new rheometer can be reliable. https://joe.uobaghdad.edu.iq/index.php/main/article/view/2141rheology, rheometer, SCC, yield stress, viscosity, ANN |
| spellingShingle | Rafa Hashem Shaker Nada Mahdi Fawzi Laith Al-Jabri Fabricating a new Rheometer for Concrete Journal of Engineering rheology, rheometer, SCC, yield stress, viscosity, ANN |
| title | Fabricating a new Rheometer for Concrete |
| title_full | Fabricating a new Rheometer for Concrete |
| title_fullStr | Fabricating a new Rheometer for Concrete |
| title_full_unstemmed | Fabricating a new Rheometer for Concrete |
| title_short | Fabricating a new Rheometer for Concrete |
| title_sort | fabricating a new rheometer for concrete |
| topic | rheology, rheometer, SCC, yield stress, viscosity, ANN |
| url | https://joe.uobaghdad.edu.iq/index.php/main/article/view/2141 |
| work_keys_str_mv | AT rafahashemshaker fabricatinganewrheometerforconcrete AT nadamahdifawzi fabricatinganewrheometerforconcrete AT laithaljabri fabricatinganewrheometerforconcrete |