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versão On-line ISSN 1678-8621
OLIVEIRA, Alexandre Lima et al. Pneumatic pin penetration test to evaluate the compressive strength of mortar bedding on structural masonry. Ambient. constr. [online]. 2012, vol.12, n.2, pp.175-188. ISSN 1678-8621. http://dx.doi.org/10.1590/S1678-86212012000200012.
Nondestructive tests have been proposed and used for the evaluation of structural masonry conditions, quality control, and properties of materials in-situ. However, most of nondestructive methods work only with mortars with low compressive strength (< 4,0 MPa) or for qualitative assessment, and are not practical for in-situ use, requiring too much time to perform evaluations. For those reasons, a pneumatic pin penetration test was used to evaluate the penetration depth of a steel probe and correlate it with the compressive strength of mortar in a laboratory. The study has shown a good correlation between the penetration depth of pins and the compressive strength of mortars, besides proving to be a practical test, which is fast and easy to implement in situ.
Palavras-chave : Nondestructive test; Bed mortar joint; Mortar; Structural masonry.