Estimation of the adherence of mortars using ultrasound

• Autorzy: Khaldi Nacera , Belachia Mouloud , Benouis Abdelhalim

Identyfikatory

DOI

10.2478/ceer-2020-0026

• Języki publikacji: EN

Abstrakty

EN

Mortars are subjected to severe external stresses such as freezing, thawing, and drying during their lifetime. These stresses can lead to a loss of adhesion between the support and the mortar. The strength of the substrates with respect to their ability to receive a coating (mortar) is characterized in particular by the value of minimum tear resistance of the surface to be coated. In this work, the use of a non-destructive method which is both fast and easy to implement is employed to evaluate this support-mortar adhesion. The first method is based on the measurement of the velocities of the surface ultrasonic waves and the second by tearing tests using a specific dynamometer. The determination of the adhesion strength concerned two different supports (concrete beam and masonry block) coated with two types of mortar (a prepared cement mortar and a ready-to-use mortar) with two different thicknesses for each mortar (1 and 2 cm, respectively). The results of the two methods are then correlated for an estimation of the adhesion of the mortars.

Słowa kluczowe

EN

adherence of mortars; mortar; support; adhesion; thickness; ultrasound method; pull out

PL

przyczepność zaprawy; zaprawa; ocena przyczepności; metoda ultradźwiękowa; ultradźwięki

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Civil and Environmental Engineering Reports
• Rocznik: 2020
• Tom: Vol. 30, no. 2
• Strony: 185--199
• Opis fizyczny: Bibliogr. 26 poz., fot., tab., wykr.

Twórcy

autor

Khaldi Nacera

• Department of civil engineering, University of 20 August 1955, Skikda, Algeria

autor

Belachia Mouloud

• LMGHU Laboratory, University of 20 August 1955, Skikda, Algeria
• Department of civil engineering and hydraulics, University 8 May 1945, Guelma, Algeria

autor

Benouis Abdelhalim

• Laboratory of Civil Engineering and hydraulics, University of 8 May 1945, Guelma, Algeria

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).