Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios

This study was conducted to explore the effect of compressive stress in concrete on the measured ultrasonic pulse velocity (UPV). Ultrasonic pulse velocities were measured by equipment called PUNDIT and test frame was used to test on the prisms concrete at the stress condition. The UPV values were...

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Main Author:	Bong, Mei Lun.
Format:	Project Report
Language:	English English
Published:	Universiti Malaysia Sarawak, UNIMAS 2010
Subjects:	TA Engineering (General). Civil engineering (General) TH Building construction
Online Access:	http://ir.unimas.my/7742/ http://ir.unimas.my/7742/1/Effect%20of%20compressive%20stress%20in%20concrete%20on%20ultrasonic%20pulse%20velocity%20with%20different%20aspect%20ratios%2024pgs.pdf http://ir.unimas.my/7742/2/Effect%20of%20compressive%20stress%20in%20concrete%20on%20ultrasonic%20pulse%20velocity%20with%20different%20aspect%20ratios%20%28full%20text%29.pdf

id	unimas-7742
recordtype	eprints
spelling	unimas-77422015-05-22T00:51:10Z http://ir.unimas.my/7742/ Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios Bong, Mei Lun. TA Engineering (General). Civil engineering (General) TH Building construction This study was conducted to explore the effect of compressive stress in concrete on the measured ultrasonic pulse velocity (UPV). Ultrasonic pulse velocities were measured by equipment called PUNDIT and test frame was used to test on the prisms concrete at the stress condition. The UPV values were measured at every load steps at 5% increment of the average compressive strength. This study was carried out by the concrete strength ranging from 25 to 30 N/mm2. The prisms with size of 100mm x 100mm x 200mm, 100mm x 100mm x 300mm and 100mm x 100mm x 400mm were used and tests were carried out at the age of 28 days. The tests results of these three prism sizes showed that almost similar characteristics. When the concrete prisms subjected with stress/ strength ratio from ranging 0.00 to 0.05, the UPV value increases slowly by 0.1% to 9%. After this state which is at 0.40 of stress/strength ratio, the UPV values increased rapidly. Under a higher compressive stress of 0.40 stress/ strength or higher, the measured of UPV values decreased rapidly but it greater than the original UPV value around 4% to 19%. The results obtained indicated that the compressive stress on concrete has significant effect on the measured of UPV values, particularly when the state of stress in the concrete is 40% or more of the compressive strength. Universiti Malaysia Sarawak, UNIMAS 2010 Project Report NonPeerReviewed text en http://ir.unimas.my/7742/1/Effect%20of%20compressive%20stress%20in%20concrete%20on%20ultrasonic%20pulse%20velocity%20with%20different%20aspect%20ratios%2024pgs.pdf text en http://ir.unimas.my/7742/2/Effect%20of%20compressive%20stress%20in%20concrete%20on%20ultrasonic%20pulse%20velocity%20with%20different%20aspect%20ratios%20%28full%20text%29.pdf Bong, Mei Lun. (2010) Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios. [Project Report] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Sarawak
building	UNIMAS Institutional Repository
collection	Online Access
language	English English
topic	TA Engineering (General). Civil engineering (General) TH Building construction
spellingShingle	TA Engineering (General). Civil engineering (General) TH Building construction Bong, Mei Lun. Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios
description	This study was conducted to explore the effect of compressive stress in concrete on the measured ultrasonic pulse velocity (UPV). Ultrasonic pulse velocities were measured by equipment called PUNDIT and test frame was used to test on the prisms concrete at the stress condition. The UPV values were measured at every load steps at 5% increment of the average compressive strength. This study was carried out by the concrete strength ranging from 25 to 30 N/mm2. The prisms with size of 100mm x 100mm x 200mm, 100mm x 100mm x 300mm and 100mm x 100mm x 400mm were used and tests were carried out at the age of 28 days. The tests results of these three prism sizes showed that almost similar characteristics. When the concrete prisms subjected with stress/ strength ratio from ranging 0.00 to 0.05, the UPV value increases slowly by 0.1% to 9%. After this state which is at 0.40 of stress/strength ratio, the UPV values increased rapidly. Under a higher compressive stress of 0.40 stress/ strength or higher, the measured of UPV values decreased rapidly but it greater than the original UPV value around 4% to 19%. The results obtained indicated that the compressive stress on concrete has significant effect on the measured of UPV values, particularly when the state of stress in the concrete is 40% or more of the compressive strength.
format	Project Report
author	Bong, Mei Lun.
author_facet	Bong, Mei Lun.
author_sort	Bong, Mei Lun.
title	Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios
title_short	Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios
title_full	Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios
title_fullStr	Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios
title_full_unstemmed	Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios
title_sort	effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios
publisher	Universiti Malaysia Sarawak, UNIMAS
publishDate	2010
url	http://ir.unimas.my/7742/ http://ir.unimas.my/7742/1/Effect%20of%20compressive%20stress%20in%20concrete%20on%20ultrasonic%20pulse%20velocity%20with%20different%20aspect%20ratios%2024pgs.pdf http://ir.unimas.my/7742/2/Effect%20of%20compressive%20stress%20in%20concrete%20on%20ultrasonic%20pulse%20velocity%20with%20different%20aspect%20ratios%20%28full%20text%29.pdf
first_indexed	2018-09-06T15:28:50Z
last_indexed	2018-09-06T15:28:50Z
_version_	1610872500286128128

Effect of compressive stress in concrete on ultrasonic pulse velocity with different aspect ratios

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