Publication
Compressive strength of micropile-to-grout connections
| datacite.subject.fos | Engenharia e Tecnologia::Engenharia dos Materiais | |
| datacite.subject.sdg | 03:Saúde de Qualidade | |
| datacite.subject.sdg | 07:Energias Renováveis e Acessíveis | |
| datacite.subject.sdg | 11:Cidades e Comunidades Sustentáveis | |
| dc.contributor.author | Veludo, J. | |
| dc.contributor.author | Júlio, E.N.B.S. | |
| dc.contributor.author | Dias-da-Costa, D. | |
| dc.date.accessioned | 2026-01-15T16:51:47Z | |
| dc.date.available | 2026-01-15T16:51:47Z | |
| dc.date.issued | 2012-01 | |
| dc.description.abstract | Strengthening foundations with micropiles is progressively being used, due to the major advantages that this technique presents. Nevertheless, the influence of some relevant parameters in the overall behavior of the retrofitted foundations has not yet been studied. Generally, micropiles are installed in holes drilled through the existing RC footing, which are then filled with grout. The efficiency of the load transfer mechanism depends on the bond strength of both the micropile-grout and the concrete-grout interfaces. This paper describes an experimental study performed to specifically study the influence of the following parameters on the bond strength between micropile-grout interface: hole diameter; embedment length of the micropile; and level of confinement of the grout mass. Thirty micropile-grout specimens were submitted to monotonic push-off tests, until failure. Bond strength was found to increase with a decrease of the hole diameter and with an increase of the confinement level. © 2011 Elsevier Ltd. All rights reserved. | eng |
| dc.description.sponsorship | The authors acknowledge the financial support of the companies Betão-Liz; DSI; HILTI; SECIL; and SIKA. | |
| dc.identifier.citation | J. Veludo, E.N.B.S. Júlio, D. Dias-da-Costa, Compressive strength of micropile-to-grout connections, Construction and Building Materials, Volume 26, Issue 1, 2012, Pages 172-179, ISSN 0950-0618, https://doi.org/10.1016/j.conbuildmat.2011.06.007. | |
| dc.identifier.doi | 10.1016/j.conbuildmat.2011.06.007 | |
| dc.identifier.issn | 0950-0618 | |
| dc.identifier.uri | http://hdl.handle.net/10400.8/15353 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | Elsevier | |
| dc.relation.hasversion | https://www.sciencedirect.com/science/article/pii/S0950061811002583 | |
| dc.relation.ispartof | Construction and Building Materials | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Bond | |
| dc.subject | Strength | |
| dc.subject | Confinement | |
| dc.subject | Retrofitting | |
| dc.subject | Interface | |
| dc.subject | Micropile | |
| dc.subject | Grout | |
| dc.subject | Push-off tests | |
| dc.title | Compressive strength of micropile-to-grout connections | eng |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 179 | |
| oaire.citation.issue | 1 | |
| oaire.citation.startPage | 172 | |
| oaire.citation.title | Construction and Building Materials | |
| oaire.citation.volume | 26 | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.affiliation.name | ESTG | |
| person.familyName | Pereira | |
| person.givenName | João Paulo Veludo Vieira | |
| person.identifier.ciencia-id | 1418-19B3-A159 | |
| person.identifier.orcid | 0000-0001-9136-5547 | |
| relation.isAuthorOfPublication | 06fa9d69-1b16-46bc-a052-0366cbf7e43d | |
| relation.isAuthorOfPublication.latestForDiscovery | 06fa9d69-1b16-46bc-a052-0366cbf7e43d |