Portland limestone cement-based mortar 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
  • P. Mihai "Gheorghe Asachi" Technical University of Iasi, Romania

Keywords:

limestone, cement mortar, anchoring, sand, admixture

Abstract

This paper presents a study of performance evaluation of fluid cement-based mortars containing limestone used as a structural bonding material for fixing reinforcing steel bars in hardened concrete. A series of standardized tests were performed during the experimental setup with the objective of assessing the performance of the mortars in terms of fluidity, cohesiveness, and early age strength. This experimental work also investigates the strength at 7 and 28 days of the fluid mortars used as bonding material. The bond strength of the rebars at 7 days is assessed. The study results were positive showing that it is feasible to anchor resistance steel rebars in concrete of low and medium strength with this mortar.

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

P. Mihai, "Gheorghe Asachi" Technical University of Iasi, Romania

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

Downloads

Published

2015-02-03

Issue

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

Section

CIVIL ENGINEERING