Adherence study between anchoring mortar and concrete for post-installed rebars in hardened concrete

Authors

  • B. Rosca "Gheorghe Asachi" Technical University of Iasi, Romania
  • Z. Kiss Technical University of Cluj-Napoca, Romania
  • V. Corobceanu "Gheorghe Asachi" Technical University of Iasi, Romania

Keywords:

adherence, cement mortar, anchoring, rebars, pull-out

Abstract

This paper presents a study of performance evaluation of adherence between anchoring cement-based mortar and concrete for post-installed steel reinforcing bars. A series of nonstandard tests were performed with the objective of assessing the adherence at the boundary between anchoring mortar and support concrete. Pull-out tests were performed to determine the adherence resistance mortar-to-concrete. The bond strength at this interface is assessed. The results are useful in the design phase of the post-installed rebar connections between an old concrete member and a new one.

Author Biographies

B. Rosca, "Gheorghe Asachi" Technical University of Iasi, Romania

Faculty of Civil Engineering, Depart. of Concrete, Materials, and Technology

Z. Kiss, Technical University of Cluj-Napoca, Romania

Faculty of Civil Engineering, Department of Structures

V. Corobceanu, "Gheorghe Asachi" Technical University of Iasi, Romania

Faculty of Civil Engineering, Depart. of Concrete, Materials, and Technology

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Published

2015-02-03

Issue

Vol. 7(56) No. 1 Special Issue (2014)

Section

CIVIL ENGINEERING