Assessment of Post-Installed Anchor Stiffnesses in Uncracked Concrete with Different Types of Coarse Aggregates

Ioannis Boumakis (), Boglárka Bokor and Thilo Pregartner
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Ioannis Boumakis: Fischer Austria GmbH, 2514 Traiskirchen, Austria
Boglárka Bokor: Fischerwerke GmbH & Co. KG, 72178 Waldachtal, Germany
Thilo Pregartner: Fischerwerke GmbH & Co. KG, 72178 Waldachtal, Germany

Sustainability, 2023, vol. 15, issue 24, 1-18

Abstract: This paper investigates the potential influence of different aggregates in the concrete mix design on the concrete cone resistance of different types of anchors as well as the anchor stiffness. In fact, bonded anchors with three different adhesives and mechanical anchors and concrete screws of two types were installed in five different concrete mixes and tested in a standard tensile configuration using pull-out tests with wide support resulting in concrete cone failure. A rigorous analysis of both the initial and secant stiffness values of the different anchor types is carried out in a comparative manner. The results of the experimental program show that the anchor stiffnesses are not influenced by the different aggregates in the concrete mixes, but rather by the type of anchor. Finally, this manuscript provides a narrow range of both initial and secant stiffness values with respect to anchor type only.

Keywords: fastening systems; aggregate; anchor stiffness; displacement-based assessment; spring models (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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