About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Characterization of Minerals, Metals and Materials
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Presentation Title |
Quality Assessment of Concrete Blocks for Structural Masonry Produced in the North and Northwest Region of The State of Rio De Janeiro |
Author(s) |
Niander Aguiar Cerqueira, Victor Barbosa de Souza, Afonso Rangel Garcez de Azevedo, Jonas Alexandre, Gustavo de Castro Xavier |
On-Site Speaker (Planned) |
Niander Aguiar Cerqueira |
Abstract Scope |
Structural masonry is a complete building system, with a high degree of rationality, fast and safe. However, there are still many low quality products being used in constructions in Brazil, and it is essential that care is taken so that the blocks comply with the normative specifications that guarantee quality, structural safety and stability of the walls. In the present work, the results of the evaluation of the characteristic compressive strength (fbk), water absorption and dimensions, according to NBR 6136/2014, of concrete blocks from five factories in the North and Northwest region of the State of Rio de Janeiro are presented. Several nonconformities were observed in the blocks, such as vertical cracks, disintegration, great weight variation and low strength, below 3,000 N/mm2. The results show the urgent need for stricter controls by the bodies responsible for inspection, with one of the factories only showing satisfactory results to ensure minimum quality. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Mechanical Properties, Composites |