UM
Ultrasonic monitoring of setting and hardening of slag blended cement under different curing temperatures by using embedded piezoelectric transducers
Zhang, Shunquan; Zhang, Yamei; Li, Zongjin
2018-01-20
Source PublicationCONSTRUCTION AND BUILDING MATERIALS
ISSN0950-0618
Volume159Pages:553-560
AbstractLow-cost embedded lead zirconate titanate (PZT) piezoelectric transducers, fabricated with piezoelectric ceramic discs and mixtures of cement powder, epoxy resin and curing agent, has been developed and used as sensors for continuously monitoring early hydration of cementitious materials in situ under different temperatures. The influence of slag incorporation and curing temperature on the hydration process of cementitious materials is investigated based on the ultrasonic wave transmission velocity obtained from the experiments. It is found that, unlike ordinary Portland cement paste, the hydration process of slag blended cement paste could be divided into five typical stages. With the increase of the curing temperature, the fourth stage, which is related to the pozzolanic reaction of slag, becomes more evident. The initial setting time obtained from Vicat needle test corresponds well to the first inflection point of the ultrasonic pulse velocity (UPV) curve, while final setting time is corresponding to the point of maximum rate of velocity change. A good exponential relationship between UPV and compressive strength of cementitious paste is found when the pastes are cured at 20 degrees C and 30 degrees C. However, linear relationship between UPV and compressive strength is found when the curing temperature is 50 degrees C. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordUltrasonic Embedded piezoelectric transducers Hydration Slag Setting time Compressive strength
DOI10.1016/j.conbuildmat.2017,10.124
URLView the original
Indexed BySCI
Language英语
WOS Research AreaConstruction & Building Technology ; Engineering ; Materials Science
WOS SubjectConstruction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS IDWOS:000423643200052
PublisherELSEVIER SCI LTD
The Source to ArticleWOS
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Citation statistics
Cited Times [WOS]:7   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Zhang, Shunquan,Zhang, Yamei,Li, Zongjin. Ultrasonic monitoring of setting and hardening of slag blended cement under different curing temperatures by using embedded piezoelectric transducers[J]. CONSTRUCTION AND BUILDING MATERIALS,2018,159:553-560.
APA Zhang, Shunquan,Zhang, Yamei,&Li, Zongjin.(2018).Ultrasonic monitoring of setting and hardening of slag blended cement under different curing temperatures by using embedded piezoelectric transducers.CONSTRUCTION AND BUILDING MATERIALS,159,553-560.
MLA Zhang, Shunquan,et al."Ultrasonic monitoring of setting and hardening of slag blended cement under different curing temperatures by using embedded piezoelectric transducers".CONSTRUCTION AND BUILDING MATERIALS 159(2018):553-560.
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