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Comparison of ultrasonic wave transmission and reflection measurements with P- and S-waves on early age mortar and concrete



Title: Comparison of ultrasonic wave transmission and reflection measurements with P- and S-waves on early age mortar and concrete
Author(s): T. Voigt, C. Grosse, Z. Sun, S. P. Shah, H. W. Reinhardt
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 282
Issue date: 2005-10-01
Publication year: 2005
Pages: 729 - 738
Total Pages: 10
Nb references: 24
Language: English


Abstract: This paper reports on results of round robin tests comparing two nondestructive, ultrasonic techniques: the wave transmission method using P-waves and the wave reflection method using S-waves.
The experiments were conducted within the activities of the RILEM Technical Committee TC ATC-185 with the objective to evaluate the ability of these methods to continuously monitor the setting and hardening process of cementitious materials.
In total, eight different mortar and concrete mixtures were subjected to the ultrasonic tests.
Additionally, experiments were conducted to determine the penetration resistance (ASTM C 403), the in-situ temperature rise, the adiabatic heat release, and the chemical shrinkage (of the cement paste phase) of the investigated materials.
The results revealed that, originating from the different wave types, the two ultrasonic methods monitor the setting process of mortar and concrete in significantly different ways.
Despite these differences, the comparison of the ultrasonic test results with the development of the adiabatic heat and the chemical shrinkage has proven that P-wave velocity and reflection loss, as the parameters measured by the two methods, have a consistent and direct relationship to the cement hydration process.


Online publication: 2005-02-15
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14267


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