| Texto completo | |
| Autor(es): |
Fonseca, Fernando S.
[1]
;
Fortes, Ernesto S.
[2]
;
Parsekian, Guilherme A.
[2]
;
Camacho, Jefferson S.
[3]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Brigham Young Univ, Dept Civil & Environm Engn, 368 Clyde Bldg, Provo, UT 84602 - USA
[2] Univ Fed Sao Carlos, Dept Civil Engn, Rodovia Washington Luiz Km 235, BR-13565905 Sao Carlos, SP - Brazil
[3] Sao Paulo State Univ, Dept Civil Engn, Alameda Bahia 550, BR-15385000 Sao Paulo - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CONSTRUCTION AND BUILDING MATERIALS; v. 202, p. 861-876, MAR 30 2019. |
| Citações Web of Science: | 1 |
| Resumo | |
An experimental program was devised to assess the influence of the compressive strength of the grout on the compressive strength of masonry constructed with high-strength concrete masonry units. Three different compressive strengths of mortar, grout, and concrete masonry units were used. Grouts were made without and with a shrinkage-compensating admixture. The various components were combined to construct several hollow and grouted prisms, which were then tested. The results show that very high-strength blocks were not as efficient as medium-strength blocks and that there was a difference between the compressive strengths of ungrouted and grouted masonry; depending on the combination of the materials used, grouted masonry can be less or more efficient than ungrouted masonry. For one combination of materials, the shrinkage -compensating admixture was shown to be effective in reducing the grout shrinkage, and the grouted prisms constructed with that combination of materials were more efficient than their hollow prisms counterpart. Grouted prisms constructed with grouts without the shrinkage -compensating admixture were, on average, less efficient than hollow prisms. The efficiency of grouted masonry depends on many factors including compatibility of deformation between the masonry components, compaction of the grout, shrinkage characteristics of the grout, block geometry, and bond between grout and block Further research is needed to determine the influence of these factors and obtain a complete understanding of the behavior and capacity of high strength masonry. (C) 2019 Elsevier Ltd. All rights reserved. (AU) | |
| Processo FAPESP: | 12/22454-0 - Comportamento de Edifícios Altos Em Alvenaria Estrutural |
| Beneficiário: | Ernesto Silva Fortes |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |