Failure modes of postinstalled epoxy anchors in poor concrete, submitted to direct traction tests
Article Sidebar
Main Article Content
Abstract
In our country, the study of failure modes in post-installed anchors has been limited to common concrete resistances, this paper aims to identify the types of failures associated with tested epoxy anchors, and interpret the faults based on existing classifications. The methodology used is based on building post-installed anchors in poor concrete and submitting them to a direct tensile test in the laboratory, analyzing the failure modes presented and determining the possible causes that originate the failure. As a result, any anchor reaches the yield strength of steel or steel failure, the cone failure mode presents the highest load resistance obtained in direct tensile tests. In general, the use of post-installed epoxy anchors with smaller bar diameters is not recommended, the failure modes observed in anchors with small steels are related to low applied load resistances.
Article Details
Section
DECLARATION OF ORGINIALITY OF SUBMITTED ARTICLE
With this document, I/We certify that the article submitted for possible publication in the institutional journal INGENIO MAGNO of the Research Center Alberto Magno CIIAM of the University Santo Tomás, Tunja campus, is entirely of my(our) own writing, and is a product of my(our) direct intellectual contribution to knowledge.
All data and references to completed publications are duly identified with their respective bibliographical entries and in the citations thus highlighted. If any adjustment or correction is needed, I(we) will contact the journal authorities in advance.
Due to that stated above, I(we) declare that the entirety of the submitted material is in accordance with applicable laws regarding intellectual and industrial property, and therefore, I(we) hold myself(ourselves) responsible for any complaint related to it.
If the submitted article is published, I(we) declare that I(we) fully relinquish publishing rights of the article to the University Santo Tomás, Tunja campus. As remuneration for this relinquishment of rights, I(we) declare my(our) agreement to receive two (2) copies of the edition of the journal in which my(our) article appears.
How to Cite
References
American Concrete Institute ACI 318S-14 (2014). Requisitos de Reglamento para Con-creto Estructural. Farmington Hill, MI: Author.
American Society for Testing Materials ASTM C-881-02 type IV (2002). Especificación es-tándar para sistemas de adhesión basados en resina epóxica para concreto. Montgomery, PA: Author.
Eligehausen R., Mallée R., Silva J., (2006). Anchorage in Concrete Construction. Berlín: John Wiley & Sons.
Hamón, J., y Galán, J., (2016). Estudio de la resistencia a tracción en anclajes estructu-rales post-instalados con adhesivo epóxico. (Trabajo de grado Ingeniero Civil), Universidad Pedagógica y Tecnológica de Colombia, Tunja.
Hilti, (2014). Sistemas de Anclajes. México, DF: Author.
Instituto Colombiano de Productores de Cemento ICPC (1997). Método Práctico Para Dosificar Mezclas de Concreto. Medellín, AN: Author.
Norma Técnica Colombiana NTC 550 (2012). Concretos Elaboración y Curado de Especímenes de Concreto en Obra. Bogotá, DC: Author.
Norma Técnica Colombiana NTC 673 – Ensayo de resistencia a la compresión de cilindros de concreto. Bogotá, DC: Author.
Sika (2015). Hoja técnica de producto Sikadur®AnchorFix-4. Bogotá, DC: Author.
Yilmaz S., Ali Özen M., Yardim Y., (2013) Tensile behavior of post-installed chemical an-chors embedded to low strength concrete, In Construction and Building Materials, Volume 47, Pages 861-866, ISSN 0950-0618.