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Mortar Plaster and Reinforcement Use to Repair and Stiff Brazil Historical Constructions
Abstract Many Brazilian historical constructions built using the techniques of daub, paving clay or adobe have presented many pathologies and sometimes even ruptures risk of walls. In order to recover such pathologies, or to reinforce such walls, it is suggested to use cement-rich mortar plaster or reinforced mortar plaster with welded steel mesh, applied to the wall with non-structural blocks. With this, it is gained net area, resulting in a greater strength and inertia. For this purpose, nine walls were tested for compression, being three walls of non-structural blocks without mortar plaster, three walls with mortar plaster and three walls with mortar plaster reinforced with welded steel mesh. Three specimens had the dimensions of 1.20 m by 2.60 m and the other six, called small walls, had dimensions of 0.90 m by 1.04 m. In these tests, simple compression loads capacity were obtained and it can be concluded that the application of the mortar plaster substantially increased the walls load capacity, as compared to the walls without mortar plaster. An increase of up to eight times in the rupture load was observed. The tests performed with the walls containing welded steel mesh inserted in the mortar plaster were not conclusive, although comparing them with the walls without mortar plaster, there was also gain of significant mechanical resistance.
Mortar Plaster and Reinforcement Use to Repair and Stiff Brazil Historical Constructions
Abstract Many Brazilian historical constructions built using the techniques of daub, paving clay or adobe have presented many pathologies and sometimes even ruptures risk of walls. In order to recover such pathologies, or to reinforce such walls, it is suggested to use cement-rich mortar plaster or reinforced mortar plaster with welded steel mesh, applied to the wall with non-structural blocks. With this, it is gained net area, resulting in a greater strength and inertia. For this purpose, nine walls were tested for compression, being three walls of non-structural blocks without mortar plaster, three walls with mortar plaster and three walls with mortar plaster reinforced with welded steel mesh. Three specimens had the dimensions of 1.20 m by 2.60 m and the other six, called small walls, had dimensions of 0.90 m by 1.04 m. In these tests, simple compression loads capacity were obtained and it can be concluded that the application of the mortar plaster substantially increased the walls load capacity, as compared to the walls without mortar plaster. An increase of up to eight times in the rupture load was observed. The tests performed with the walls containing welded steel mesh inserted in the mortar plaster were not conclusive, although comparing them with the walls without mortar plaster, there was also gain of significant mechanical resistance.
Mortar Plaster and Reinforcement Use to Repair and Stiff Brazil Historical Constructions
Cyrino, Lucílio Flávio (author) / Silva, Roberto Márcio (author) / Grandi, Alba Bruna Cintra (author)
2019-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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