Estimation of the Adherence of Mortars Using Ultrasound
| Author(s): |
Nacera Khaldi
(Department of civil engineering , University of 20 August 1955 , Skikda , Algeria)
Mouloud Belachia (LMGHU Laboratory , University of 20 August 1955 , Skikda , Algeria) Abdelhalim Benouis (Laboratory of Civil Engineering and hydraulics , University of 8 May 1945 , Guelma , Algeria) |
|---|---|
| Medium: | journal article |
| Language(s): | English |
| Published in: | Civil and Environmental Engineering Reports, June 2020, n. 2, v. 30 |
| Page(s): | 185-199 |
| DOI: | 10.2478/ceer-2020-0026 |
| Abstract: |
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. |
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data sheet - Reference-ID
10705129 - Published on:
19/02/2023 - Last updated on:
19/02/2023
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