The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing

This study investigates the performance of concrete containing desert sand (desert sand concrete and desert sand self-compacting concrete) as overlay concrete to bond with normal-strength concrete substrate, with different bonding interfaces being considered. The impermeability of the bonding interf...

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Main Authors: Cai, Weihan, Liu, Haifeng, Xu, Wenjing, Che, Jialing, Doh, Shu Ing
Format: Article
Language:English
English
Published: Elsevier Ltd 2024
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/41360/1/The%20bonding%20performance%20of%20desert%20sand%20self-compacting%20concrete%20overlay.pdf
http://umpir.ump.edu.my/id/eprint/41360/2/The%20bonding%20performance%20of%20desert%20sand%20self-compacting%20concrete%20overlay%20on%20normal_ABS.pdf
http://umpir.ump.edu.my/id/eprint/41360/
https://doi.org/10.1016/j.jobe.2024.109502
https://doi.org/10.1016/j.jobe.2024.109502
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spelling my.ump.umpir.413602024-07-01T01:12:17Z http://umpir.ump.edu.my/id/eprint/41360/ The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing Cai, Weihan Liu, Haifeng Xu, Wenjing Che, Jialing Doh, Shu Ing T Technology (General) TA Engineering (General). Civil engineering (General) This study investigates the performance of concrete containing desert sand (desert sand concrete and desert sand self-compacting concrete) as overlay concrete to bond with normal-strength concrete substrate, with different bonding interfaces being considered. The impermeability of the bonding interface is determined by the electrical resistance test. Static bonding strength is tested by conventional mechanical tests. The dynamic properties of bonded specimens are also studied by dynamic response tests. Non-linear parameters, low-frequency energy parameters and ultrasonic velocity are included in the bonding interface ultrasound detection. The microstructural and chemical compositional of the overlay transition zone (OTZ) are analysed to reveal the mechanisms of bonding behaviour. The results indicate that the interface electrical resistance is positively related to bonding strength. Using concrete containing desert sand as the overlay concrete improves bonding interface adhesion for 30 % at most. Bonding performance can be affected by the interface pattern and volume density in both static and dynamic conditions. The bonding strength and damping ratio with properly treated interfaces can be increased by over 300 % and 38 % than those of untreated groups, respectively. The dynamic response of the bonded specimens can effectively reflect the bonding performance. The non-linear ultrasound method and the ultrasound energy method are more accurate and sensitive than traditional way (ultrasonic velocities) in detecting the bonding interface. The incorporation of desert sand in the concrete or lowering W/B considerably contributes to a series of benefits to the microstructure of the bonding interface. The bonding gap width is reduced by 17 % and 72 % for DS incorporation and lower W/B, respectively. Characterized by Ca/Si, the OTZ width is reduced by 10 % and 31 % for DS incorporation and lower W/B, respectively. Characterized by micro-hardness, the OTZ width is reduced by 21 % and 24 % for DS incorporation and lower W/B, respectively, which provides an important reference for the engineering application of desert sand self-compacting concrete. Elsevier Ltd 2024-08-01 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/41360/1/The%20bonding%20performance%20of%20desert%20sand%20self-compacting%20concrete%20overlay.pdf pdf en http://umpir.ump.edu.my/id/eprint/41360/2/The%20bonding%20performance%20of%20desert%20sand%20self-compacting%20concrete%20overlay%20on%20normal_ABS.pdf Cai, Weihan and Liu, Haifeng and Xu, Wenjing and Che, Jialing and Doh, Shu Ing (2024) The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing. Journal of Building Engineering, 90 (109502). pp. 1-29. ISSN 2352-7102. (Published) https://doi.org/10.1016/j.jobe.2024.109502 https://doi.org/10.1016/j.jobe.2024.109502
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Cai, Weihan
Liu, Haifeng
Xu, Wenjing
Che, Jialing
Doh, Shu Ing
The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing
description This study investigates the performance of concrete containing desert sand (desert sand concrete and desert sand self-compacting concrete) as overlay concrete to bond with normal-strength concrete substrate, with different bonding interfaces being considered. The impermeability of the bonding interface is determined by the electrical resistance test. Static bonding strength is tested by conventional mechanical tests. The dynamic properties of bonded specimens are also studied by dynamic response tests. Non-linear parameters, low-frequency energy parameters and ultrasonic velocity are included in the bonding interface ultrasound detection. The microstructural and chemical compositional of the overlay transition zone (OTZ) are analysed to reveal the mechanisms of bonding behaviour. The results indicate that the interface electrical resistance is positively related to bonding strength. Using concrete containing desert sand as the overlay concrete improves bonding interface adhesion for 30 % at most. Bonding performance can be affected by the interface pattern and volume density in both static and dynamic conditions. The bonding strength and damping ratio with properly treated interfaces can be increased by over 300 % and 38 % than those of untreated groups, respectively. The dynamic response of the bonded specimens can effectively reflect the bonding performance. The non-linear ultrasound method and the ultrasound energy method are more accurate and sensitive than traditional way (ultrasonic velocities) in detecting the bonding interface. The incorporation of desert sand in the concrete or lowering W/B considerably contributes to a series of benefits to the microstructure of the bonding interface. The bonding gap width is reduced by 17 % and 72 % for DS incorporation and lower W/B, respectively. Characterized by Ca/Si, the OTZ width is reduced by 10 % and 31 % for DS incorporation and lower W/B, respectively. Characterized by micro-hardness, the OTZ width is reduced by 21 % and 24 % for DS incorporation and lower W/B, respectively, which provides an important reference for the engineering application of desert sand self-compacting concrete.
format Article
author Cai, Weihan
Liu, Haifeng
Xu, Wenjing
Che, Jialing
Doh, Shu Ing
author_facet Cai, Weihan
Liu, Haifeng
Xu, Wenjing
Che, Jialing
Doh, Shu Ing
author_sort Cai, Weihan
title The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing
title_short The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing
title_full The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing
title_fullStr The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing
title_full_unstemmed The bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : Macro, micro, and ultrasonic testing
title_sort bonding performance of desert sand self-compacting concrete overlay on normal strength concrete substrate : macro, micro, and ultrasonic testing
publisher Elsevier Ltd
publishDate 2024
url http://umpir.ump.edu.my/id/eprint/41360/1/The%20bonding%20performance%20of%20desert%20sand%20self-compacting%20concrete%20overlay.pdf
http://umpir.ump.edu.my/id/eprint/41360/2/The%20bonding%20performance%20of%20desert%20sand%20self-compacting%20concrete%20overlay%20on%20normal_ABS.pdf
http://umpir.ump.edu.my/id/eprint/41360/
https://doi.org/10.1016/j.jobe.2024.109502
https://doi.org/10.1016/j.jobe.2024.109502
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score 13.235796