Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous Media
In this work, detailed investigation was carried out on a large number of casted cement blocks,which have been immersed in water for various time periods . It was shown that the physical and mechanical properties of the cement castings depended on the immersion period as well as on the solidificatio...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2013-04-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_84172_626eaf52b84255c8d7f2d1fe1ed9d1db.pdf |
| _version_ | 1797325688259215360 |
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| author | Anaam Wadi Watan |
| author_facet | Anaam Wadi Watan |
| author_sort | Anaam Wadi Watan |
| collection | DOAJ |
| description | In this work, detailed investigation was carried out on a large number of casted cement blocks,which have been immersed in water for various time periods . It was shown that the physical and mechanical properties of the cement castings depended on the immersion period as well as on the solidification degree of the cement,which implies the effectiveness of the degree of hydration of the cement samples.These specimens were subjected to external compressive stresses,ultrasonic testing showed that the velocity of the ultrasonic waves dependent the applied stresses values . There is a critical stress after which the velocity seem to be reduced suddenly and effectively .This may be correlated with the initiation of cracks as a first stage of failure .This sudden reduction in wave velocity was only clear in specimens whose completed hydration and curing .However, this behaviour was not exhibited in specimens with lower degrees of curing or hydration before that critical stress,the wave velocity seem to gradually reduce due to various degrees of defotmation . |
| first_indexed | 2024-03-08T06:13:01Z |
| format | Article |
| id | doaj.art-fb07f03fbcfe4c2bb6a12b0586196d29 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:13:01Z |
| publishDate | 2013-04-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-fb07f03fbcfe4c2bb6a12b0586196d292024-02-04T17:34:58ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582013-04-01314 B768510.30684/etj.31.4B.1584172Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous MediaAnaam Wadi WatanIn this work, detailed investigation was carried out on a large number of casted cement blocks,which have been immersed in water for various time periods . It was shown that the physical and mechanical properties of the cement castings depended on the immersion period as well as on the solidification degree of the cement,which implies the effectiveness of the degree of hydration of the cement samples.These specimens were subjected to external compressive stresses,ultrasonic testing showed that the velocity of the ultrasonic waves dependent the applied stresses values . There is a critical stress after which the velocity seem to be reduced suddenly and effectively .This may be correlated with the initiation of cracks as a first stage of failure .This sudden reduction in wave velocity was only clear in specimens whose completed hydration and curing .However, this behaviour was not exhibited in specimens with lower degrees of curing or hydration before that critical stress,the wave velocity seem to gradually reduce due to various degrees of defotmation .https://etj.uotechnology.edu.iq/article_84172_626eaf52b84255c8d7f2d1fe1ed9d1db.pdfcement castinghydrationcompressive stressesultrasonic velocity |
| spellingShingle | Anaam Wadi Watan Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous Media Engineering and Technology Journal cement casting hydration compressive stresses ultrasonic velocity |
| title | Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous Media |
| title_full | Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous Media |
| title_fullStr | Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous Media |
| title_full_unstemmed | Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous Media |
| title_short | Effect of External Compressive Stresses on the Path of Ultrasonic Waves Propagating in Various Cementeous Media |
| title_sort | effect of external compressive stresses on the path of ultrasonic waves propagating in various cementeous media |
| topic | cement casting hydration compressive stresses ultrasonic velocity |
| url | https://etj.uotechnology.edu.iq/article_84172_626eaf52b84255c8d7f2d1fe1ed9d1db.pdf |
| work_keys_str_mv | AT anaamwadiwatan effectofexternalcompressivestressesonthepathofultrasonicwavespropagatinginvariouscementeousmedia |