2004
DOI: 10.1016/j.conbuildmat.2003.10.002
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Continuous monitoring of setting and hardening of mortar and concrete

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Cited by 238 publications
(132 citation statements)
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“…Practical experience showed that the final setting time could be defined by an ultrasound velocity of 1500 m/s [5]. Our data confirm this statement, since for the reference mix with ordinary Portland cement (I-0) an ultrasound velocity of 1500 m/s was reached after 355 min which corresponds well with the setting period of 6 to 7 h, mentioned by [23].…”
Section: Discussionsupporting
confidence: 88%
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“…Practical experience showed that the final setting time could be defined by an ultrasound velocity of 1500 m/s [5]. Our data confirm this statement, since for the reference mix with ordinary Portland cement (I-0) an ultrasound velocity of 1500 m/s was reached after 355 min which corresponds well with the setting period of 6 to 7 h, mentioned by [23].…”
Section: Discussionsupporting
confidence: 88%
“…During the last decade other non-destructive techniques have attracted attention for the characterisation of the behaviour of concrete at early age. Among these, ultrasonic pulse velocity measurements permit to continuously follow microstructure development in concrete and mortar at early age [4,5,6,7,8]. The ultrasonic pulse velocity measurements are related to the development of the modulus of elasticity and the Poisson ratio.…”
Section: Motivementioning
confidence: 99%
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“…More recently, NDT (non destructive testing) ultrasonic devices, previously developed for damage detection and crack identification, have been used to monitor the transition from fluid to solid and the change in stiffness of early age concrete. One example is the Freshcon system developed at the University of Stuttgart [1,2] which is represented on Figure 1. It consists in a specific mold (for concrete or mortar) equipped with two piezoeletric transducers (one transmitter and one receiver).…”
Section: Introductionmentioning
confidence: 99%