Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic Method
We propose a novel contactless ultrasonic method for monitoring the hardening behavior of cementitious materials. The goal of this method is to obtain high-quality data to compare the unique hardening process between rapid setting cement (RSC) and ordinary Portland cement (OPC) mortars without physi...
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Online Access: | https://www.mdpi.com/1424-8220/21/10/3421 |
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doaj-f7c235b2567d47539fab824a226ff2a42021-06-01T00:02:53ZengMDPI AGSensors1424-82202021-05-01213421342110.3390/s21103421Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic MethodJinyoung Hong0Hajin Choi1School of Architecture, Soongsil University, Seoul 06978, KoreaSchool of Architecture, Soongsil University, Seoul 06978, KoreaWe propose a novel contactless ultrasonic method for monitoring the hardening behavior of cementitious materials. The goal of this method is to obtain high-quality data to compare the unique hardening process between rapid setting cement (RSC) and ordinary Portland cement (OPC) mortars without physical coupling to the surface of the specimens. To monitor the hardening behavior of cementitious materials, conventional approaches use contact or embedded-type sensors, which limit field application. Our solution is to measure leaky Rayleigh waves at the interface between air and cementitious materials, which allows for the estimation of the physical state of the medium in real time. The modulus development was back-calculated based on the increment of wave velocity using the developed sensor array and transform-based signal processing. We experimentally demonstrated that the proposed method possibly exhibits unique hardening information about flash setting, effects of a retarder, and modulus increments from RSC specimens.https://www.mdpi.com/1424-8220/21/10/3421contactless ultrasonicssensor arrayrapid setting cementsettinghardening |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jinyoung Hong Hajin Choi |
spellingShingle |
Jinyoung Hong Hajin Choi Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic Method Sensors contactless ultrasonics sensor array rapid setting cement setting hardening |
author_facet |
Jinyoung Hong Hajin Choi |
author_sort |
Jinyoung Hong |
title |
Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic Method |
title_short |
Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic Method |
title_full |
Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic Method |
title_fullStr |
Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic Method |
title_full_unstemmed |
Monitoring Hardening Behavior of Cementitious Materials Using Contactless Ultrasonic Method |
title_sort |
monitoring hardening behavior of cementitious materials using contactless ultrasonic method |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2021-05-01 |
description |
We propose a novel contactless ultrasonic method for monitoring the hardening behavior of cementitious materials. The goal of this method is to obtain high-quality data to compare the unique hardening process between rapid setting cement (RSC) and ordinary Portland cement (OPC) mortars without physical coupling to the surface of the specimens. To monitor the hardening behavior of cementitious materials, conventional approaches use contact or embedded-type sensors, which limit field application. Our solution is to measure leaky Rayleigh waves at the interface between air and cementitious materials, which allows for the estimation of the physical state of the medium in real time. The modulus development was back-calculated based on the increment of wave velocity using the developed sensor array and transform-based signal processing. We experimentally demonstrated that the proposed method possibly exhibits unique hardening information about flash setting, effects of a retarder, and modulus increments from RSC specimens. |
topic |
contactless ultrasonics sensor array rapid setting cement setting hardening |
url |
https://www.mdpi.com/1424-8220/21/10/3421 |
work_keys_str_mv |
AT jinyounghong monitoringhardeningbehaviorofcementitiousmaterialsusingcontactlessultrasonicmethod AT hajinchoi monitoringhardeningbehaviorofcementitiousmaterialsusingcontactlessultrasonicmethod |
_version_ |
1721415950812577792 |