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Testing of Compressive and Bending Strength of Concrete and Monitoring Acoustic Emission Parameters


Mikulić, Dunja; Milovanović, Bojan; Gabrijel, Ivan
Testing of Compressive and Bending Strength of Concrete and Monitoring Acoustic Emission Parameters // Proceedings of 7th International Symposium on Nondestructive Testing in Civil Engineering / Abraham, Odile ; Derobert, Xavier (ur.).
Nantes: Laboratoire Central des Ponts et Chaussées, 2009. str. 903-908 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Testing of Compressive and Bending Strength of Concrete and Monitoring Acoustic Emission Parameters

Autori
Mikulić, Dunja ; Milovanović, Bojan ; Gabrijel, Ivan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 7th International Symposium on Nondestructive Testing in Civil Engineering / Abraham, Odile ; Derobert, Xavier - Nantes : Laboratoire Central des Ponts et Chaussées, 2009, 903-908

ISBN
978-2-7208-2542-5

Skup
NDTCE 09 - 7th International Symposium on Nondestructive Testing in Civil Engineering

Mjesto i datum
Nantes, Francuska, 30.06.-03.07.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Concrete; compressive strength; bending strength; Acoustic emission; Kaiser Effect

Sažetak
The mechanism of compressive failure is still in progress to be clarified ; this has been tried with acquisition and analysis of acoustic emission parameters. The processing of the AE data is often not trivial and because of that, simple tests on the concrete samples were made. This paper deals with the relations between load and acoustic emission activities in concrete under different loading conditions. The compressive strength loading test was done with decreasing the friction between the specimen and the loading plates by means of rubber backing and by that decreasing the shear stresses. During testing, the acoustic emission activity was acquired. The three-point bending strength testing was also done. Cyclic loading was applied in both uniaxial compression strength testing and three-point bending strength testing in order to observe the Kaiser effect and Felicity ratio. Presented paper includes the differences in reading the acoustic emission signal and its behavior during the loading, just before the fracture and at the very time the concrete is fractured.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti



POVEZANOST RADA


Projekt / tema
082-0822161-2990 - OD NANO DO MAKROSTRUKTURE BETONA (Nina Štirmer, )

Ustanove
Građevinski fakultet, Zagreb