A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cement strength testing by means of ultrasonic pulse method
Testing of building materials by ultrasonic pulse method is included in Czech technical standards only in view of concretes and natural building stone. In testing of concretes, the ultrasonic pulse method is used to detect dynamic modules of elasticity and homogeneity, to determine the depth of cracks in concrete structures or to discover changes in microstructure of concrete, when tracing its durability (variations of ultrasonic pulse propagation velocity, resp. of dynamic modules reckoned thereof as a supporting parameter for testing of frost resistance or of corrosion resistance within an aggressive medium). There is a Czech technical standard describing a procedure of natural building stone testing by ultrasonic pulse method which, however, does not find any practical use. Using of ultrasonic pulse method for defining the material strength is conditioned by existence of calibration relations between the parameters of nondestructive testing, in this case relations between the velocity of ultrasonic pulse propagation and the strength, and this all under exactly defined testing conditions. This article contains testing results measured on Portland cements manufactured according to the ESN EN 197-1 and testing results regarding the cements masonry complying with the demands of ESN EN 413-1
Cement strength testing by means of ultrasonic pulse method
Testing of building materials by ultrasonic pulse method is included in Czech technical standards only in view of concretes and natural building stone. In testing of concretes, the ultrasonic pulse method is used to detect dynamic modules of elasticity and homogeneity, to determine the depth of cracks in concrete structures or to discover changes in microstructure of concrete, when tracing its durability (variations of ultrasonic pulse propagation velocity, resp. of dynamic modules reckoned thereof as a supporting parameter for testing of frost resistance or of corrosion resistance within an aggressive medium). There is a Czech technical standard describing a procedure of natural building stone testing by ultrasonic pulse method which, however, does not find any practical use. Using of ultrasonic pulse method for defining the material strength is conditioned by existence of calibration relations between the parameters of nondestructive testing, in this case relations between the velocity of ultrasonic pulse propagation and the strength, and this all under exactly defined testing conditions. This article contains testing results measured on Portland cements manufactured according to the ESN EN 197-1 and testing results regarding the cements masonry complying with the demands of ESN EN 413-1
Cement strength testing by means of ultrasonic pulse method
Prüfung der Zementfestigkeit mittels Ultraschall-Impulsverfahren
Brozovsky, J. (author) / Brozovsky, J. jun. (author)
2006
6 Seiten, 2 Bilder, 9 Quellen
Conference paper
Storage medium
English
Testing strength of concrete by ultrasonic-pulse method
| Engineering Index Backfile | 1955
Testing strength of concrete by ultrasonic-pulse method
| Engineering Index Backfile | 1954
Prediction of standard compressive strength of cement by means of accelerated testing
| Springer Verlag | 1974
Attenuation of ultrasonic pulse in cement mortar
| Tema Archive | 1990
Prediction of standard compressive strength of cement by means of accelerated testing
| Online Contents | 1974