Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results
This paper deals with correlations among mechanical properties of hollow blocks and those of concrete used to make them. Concrete hollow blocks and test samples were moulded with plastic consistency concrete, to assure the same material in all cases, in three diferente levels of strength (nominally...
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| Format: | Article |
| Language: | English |
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Instituto Brasileiro do Concreto (IBRACON)
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| Series: | Revista IBRACON de Estruturas e Materiais |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952009000100005&lng=en&tlng=en |
| _version_ | 1818417785720537088 |
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| author | C. S. Barbosa J.B. Hanai |
| author_facet | C. S. Barbosa J.B. Hanai |
| author_sort | C. S. Barbosa |
| collection | DOAJ |
| description | This paper deals with correlations among mechanical properties of hollow blocks and those of concrete used to make them. Concrete hollow blocks and test samples were moulded with plastic consistency concrete, to assure the same material in all cases, in three diferente levels of strength (nominally 10 N/mm², 20 N/mm² and 30 N/mm²). The mechanical properties and structural behaviour in axial compression and tension tests were determined by standard tests in blocks and cylinders. Stress and strain analyses were made based on concrete’s modulus of elasticity obtained in the sample tests as well as on measured strain in the blocks’ face-shells and webs. A peculiar stress-strain analysis, based on the superposition of effects, provided an estimation of the block load capacity based on its deformations. In addition, a tentative method to preview the block deformability from the concrete mechanical properties is described and tested. This analysis is a part of a broader research that aims to support a detailed structural analysis of blocks, prisms and masonry constructions. |
| first_indexed | 2024-12-14T12:12:18Z |
| format | Article |
| id | doaj.art-5cd4633e3aa74f9f9e876f2bacc9b783 |
| institution | Directory Open Access Journal |
| issn | 1983-4195 |
| language | English |
| last_indexed | 2024-12-14T12:12:18Z |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj.art-5cd4633e3aa74f9f9e876f2bacc9b7832022-12-21T23:01:43ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-419521859910.1590/S1983-41952009000100005S1983-41952009000100005Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test resultsC. S. Barbosa0J.B. Hanai1Universidade de São PauloUniversidade de São PauloThis paper deals with correlations among mechanical properties of hollow blocks and those of concrete used to make them. Concrete hollow blocks and test samples were moulded with plastic consistency concrete, to assure the same material in all cases, in three diferente levels of strength (nominally 10 N/mm², 20 N/mm² and 30 N/mm²). The mechanical properties and structural behaviour in axial compression and tension tests were determined by standard tests in blocks and cylinders. Stress and strain analyses were made based on concrete’s modulus of elasticity obtained in the sample tests as well as on measured strain in the blocks’ face-shells and webs. A peculiar stress-strain analysis, based on the superposition of effects, provided an estimation of the block load capacity based on its deformations. In addition, a tentative method to preview the block deformability from the concrete mechanical properties is described and tested. This analysis is a part of a broader research that aims to support a detailed structural analysis of blocks, prisms and masonry constructions.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952009000100005&lng=en&tlng=enstructural masonryconcrete blockmechanical propertiesstrengthdeformability |
| spellingShingle | C. S. Barbosa J.B. Hanai Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results Revista IBRACON de Estruturas e Materiais structural masonry concrete block mechanical properties strength deformability |
| title | Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results |
| title_full | Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results |
| title_fullStr | Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results |
| title_full_unstemmed | Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results |
| title_short | Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results |
| title_sort | strength and deformability of hollow concrete blocks correlation of block and cylindrical sample test results |
| topic | structural masonry concrete block mechanical properties strength deformability |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952009000100005&lng=en&tlng=en |
| work_keys_str_mv | AT csbarbosa strengthanddeformabilityofhollowconcreteblockscorrelationofblockandcylindricalsampletestresults AT jbhanai strengthanddeformabilityofhollowconcreteblockscorrelationofblockandcylindricalsampletestresults |