Determinação da resistência à compressão em alvenaria de tijolos cerâmico e cimentício pelos métodos não destrutivos através de ultrassom e esclerômetria
This work fits into the technological innovation of resistant masonry as a contribution to the estimated strength of the walls and the field of non-destructive testing technique for determining the speed of propagation of the ultrasonic wave and the rebound hammer masonry line, looking for a corr...
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| Formatua: | doctoralThesis |
| Hizkuntza: | por |
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Brasil
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| Gaiak: | |
| Sarrera elektronikoa: | https://repositorio.ufrn.br/jspui/handle/123456789/23312 |
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| Gaia: | This work fits into the technological innovation of resistant masonry as a contribution to
the estimated strength of the walls and the field of non-destructive testing technique for
determining the speed of propagation of the ultrasonic wave and the rebound hammer
masonry line, looking for a correlation with the resistance to the compression. To do so,
masonry ceramic bricks and cement blocks were studied in existing buildings of the coffin
type in Muribeca’s residential complex, located at Jaboatão Guararapes county,
Pernambuco, produced with different classes of resistance. Taking into account this
variable tests to determine the propagation speed of the ultrasonic wave according to NBR
8802/1994, resistance to the compression compressive strength in accordance with NBR
5739/1994 and sclerometry were performed based on NBR 7584/2013. As a result obtain
two graphs which relate the velocity of the ultrasound pulse with the compressive strength
of the walls with a 20% uncertainty. They were also obtained three frames which make
the correlation between the rebound hammer and the compression strength of ceramic
and masonry cement. |
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