Using ready-mixed mortars in concrete block structural masonry
Ready-mixed mortars have been increasingly used due to their potential for waste reductions and productivity increases. However, research regarding their use in structural masonry applications are practically non-existent. Thus, this work investigated the technical feasibility of using ready-mixed m...
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| বিন্যাস: | Online |
| ভাষা: | eng |
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ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
2020
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| অনলাইন ব্যবহার করুন: | https://seer.ufrgs.br/ambienteconstruido/article/view/92458 |
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ojs-article-924582020-07-08T01:17:38Z Using ready-mixed mortars in concrete block structural masonry Matos, Paulo Ricardo de Schankoski, Rudiele Aparecida Pilar, Ronaldo Prudêncio Junior, Luiz Roberto Ready mixed mortar; Structural masonry; Concrete blocks. Ready-mixed mortars have been increasingly used due to their potential for waste reductions and productivity increases. However, research regarding their use in structural masonry applications are practically non-existent. Thus, this work investigated the technical feasibility of using ready-mixed mortars with nominal compressive strengths of 6, 9 and 14 MPa and storage times of 0 and 36 hours in concrete block structural masonry. The fresh state properties of the mortars were evaluated at 0 and 36 hours through the slump test, consistency and plasticity by the Gtec test, and entrained air content. The compressive and flexural strengths of the mortars were determined at 28 days. In addition, three-row prisms were tested for compressive strength and modulus of elasticity, and four-row prisms for flexural strength in the bending test, all at 28 days. The results showed that the 6 and 9 MPa ready-mixed mortars showed satisfactory maintenance of the fresh properties from 0 to 36 hours and adequate hardened properties for both casting ages, in contrast to the 14 MPa mortar. Regarding the prism tests, the increase in storage time did not significantly affect the properties evaluated for a reliability of 95%. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído CAPES CNPq 2020-07-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/92458 Ambiente Construído; v. 20, n. 3 (2020); 431-449 Ambiente Construído; v. 20, n. 3 (2020); 431-449 Ambiente Construído; v. 20, n. 3 (2020); 431-449 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/92458/57603 Direitos autorais 2020 Ambiente Construído https://creativecommons.org/licenses/by/4.0 |
| institution |
Universidade Federal do Rio Grande do Sul |
| collection |
OJS |
| language |
eng |
| format |
Online |
| author |
Matos, Paulo Ricardo de Schankoski, Rudiele Aparecida Pilar, Ronaldo Prudêncio Junior, Luiz Roberto |
| spellingShingle |
Matos, Paulo Ricardo de Schankoski, Rudiele Aparecida Pilar, Ronaldo Prudêncio Junior, Luiz Roberto Using ready-mixed mortars in concrete block structural masonry |
| author_facet |
Matos, Paulo Ricardo de Schankoski, Rudiele Aparecida Pilar, Ronaldo Prudêncio Junior, Luiz Roberto |
| author_sort |
Matos, Paulo Ricardo de |
| title |
Using ready-mixed mortars in concrete block structural masonry |
| title_short |
Using ready-mixed mortars in concrete block structural masonry |
| title_full |
Using ready-mixed mortars in concrete block structural masonry |
| title_fullStr |
Using ready-mixed mortars in concrete block structural masonry |
| title_full_unstemmed |
Using ready-mixed mortars in concrete block structural masonry |
| title_sort |
using ready-mixed mortars in concrete block structural masonry |
| description |
Ready-mixed mortars have been increasingly used due to their potential for waste reductions and productivity increases. However, research regarding their use in structural masonry applications are practically non-existent. Thus, this work investigated the technical feasibility of using ready-mixed mortars with nominal compressive strengths of 6, 9 and 14 MPa and storage times of 0 and 36 hours in concrete block structural masonry. The fresh state properties of the mortars were evaluated at 0 and 36 hours through the slump test, consistency and plasticity by the Gtec test, and entrained air content. The compressive and flexural strengths of the mortars were determined at 28 days. In addition, three-row prisms were tested for compressive strength and modulus of elasticity, and four-row prisms for flexural strength in the bending test, all at 28 days. The results showed that the 6 and 9 MPa ready-mixed mortars showed satisfactory maintenance of the fresh properties from 0 to 36 hours and adequate hardened properties for both casting ages, in contrast to the 14 MPa mortar. Regarding the prism tests, the increase in storage time did not significantly affect the properties evaluated for a reliability of 95%. |
| publisher |
ANTAC - Associação Nacional de Tecnologia do Ambiente Construído |
| publishDate |
2020 |
| url |
https://seer.ufrgs.br/ambienteconstruido/article/view/92458 |
| work_keys_str_mv |
AT matospauloricardode usingreadymixedmortarsinconcreteblockstructuralmasonry AT schankoskirudieleaparecida usingreadymixedmortarsinconcreteblockstructuralmasonry AT pilarronaldo usingreadymixedmortarsinconcreteblockstructuralmasonry AT prudenciojuniorluizroberto usingreadymixedmortarsinconcreteblockstructuralmasonry |
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