Detail publikace

Influence of crack propagation on electrical resistivity and ultrasonic characteristics of normal concrete assessed by sequential TPB fracture test

VESELÝ, V. KONEČNÝ, P. LEHNER, P.

Originální název

Influence of crack propagation on electrical resistivity and ultrasonic characteristics of normal concrete assessed by sequential TPB fracture test

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The paper is focused on the investigation of the effect of tensile failure propagation on the change in values of electrical resistivity and ultrasound pulse passing time within the central section of beam bend specimens made of normal concrete. These two physical characteristics may be employed as a quality indicator of the concrete cover within the procedures of the assessment of the structural durability. The three-point bending test configuration was utilised to drive the crack propagation process through several loading-unloading cycles, between which, the electrical resistivity and ultrasonic measurements over the fractured region were performed. Equivalent elastic crack model was used for estimation of the fracture progression (described via the effective crack length increment) at those loading stages. The relationships between changes of the non-destructively determined parameters, the effective crack length and the distance from crack tip are discussed with respect to two variants of treatment of the test specimens' surface: the pre-dried surface and the wet surface. A difference between the ultrasonic and electrical resistivity measurements ability with respect to crack width is found in the case of wet samples. (C) 2015 Elsevier Ltd. All rights reserved.

Klíčová slova

Normal concrete; Three-point bending test; Sequential loading; Effective crack length; Electrical resistivity; Ultrasound pulse passing time

Autoři

VESELÝ, V.; KONEČNÝ, P.; LEHNER, P.

Vydáno

1. 12. 2015

Nakladatel

Elsevier

Místo

NETHERLANDS, ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM

ISSN

0167-8442

Periodikum

Theoretical and Applied Fracture Mechanics

Ročník

80

Stát

Nizozemsko

Strany od

2

Strany do

13

Strany počet

12

URL

https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0167844215201504

BibTex

@article{BUT164376,
  author="Václav {Veselý} and Petr {Konečný} and Petr {Lehner}",
  title="Influence of crack propagation on electrical resistivity and ultrasonic characteristics of normal concrete assessed by sequential TPB fracture test",
  journal="Theoretical and Applied Fracture Mechanics",
  year="2015",
  volume="80",
  number="0",
  pages="2--13",
  doi="10.1016/j.tafmec.2015.09.005",
  issn="0167-8442",
  url="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0167844215201504"
}