Detail publikace

Non-traditional Non-destructive Testing of the Alkali-activated Slag Mortar during the Hardening

TOPOLÁŘ, L. RYPÁK, P. TIMČAKOVÁ, K. PAZDERA, L. ROVNANÍK, P.

Originální název

Non-traditional Non-destructive Testing of the Alkali-activated Slag Mortar during the Hardening

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This paper reports the results of measurements during hardening and drying of specimens of alkali-activated slag mortars. Alkali activated slag is a material having a great potential to be used in practice. The main drawback of this material is a high level of autogenous and especially drying shrinkage, which causes a deterioration of the mechanical properties. The aim of this paper is introduce the effect of method treatment of mortars and time curing on the microstructure of alkali activated slag mortars. An understanding of microstructure performance relationship is the key to true understanding of material behaviour. The results obtained in the laboratory are useful to understand the various stages of micro-cracking activity during the hardening process in quasi-brittle materials such as alkali-activated slag mortars and extend them for field applications. Non-destructive acoustic analysis methods, Impact-echo method as a traditional and the Acoustic emission method as non-traditional method for civil engineering were used for experiment. The principle of the Impact-echo method is based on analysing of the response of an elastic-impulse-induced mechanical wave. Acoustic emission is the term for noise emitted by material and structures when they are subjected to stress. Types of stress can be mechanical, thermal or chemical. Ultrasound testing and loss in weight were used as complementary methods for the tested samples.

Klíčová slova

Acoustic Emission Method, Loss in Weight, Impact-echo Method, Ultrasound testing, Alkali-activated Slag Mortars

Autoři

TOPOLÁŘ, L.; RYPÁK, P.; TIMČAKOVÁ, K.; PAZDERA, L.; ROVNANÍK, P.

Vydáno

22. 1. 2016

Nakladatel

Inštitut za kovinske materiale in tehnologije Ljubljana

Místo

Ljubljana

ISSN

1580-2949

Periodikum

Materiali in tehnologije

Ročník

50

Číslo

1

Stát

Slovinská republika

Strany od

7

Strany do

10

Strany počet

4

URL

http://mit.imt.si/Revija/izvodi/mit161/topolar.pdf

BibTex

@article{BUT121081,
  author="Libor {Topolář} and Peter {Rypák} and Kristýna {Timčaková} and Luboš {Pazdera} and Pavel {Rovnaník}",
  title="Non-traditional Non-destructive Testing of the Alkali-activated Slag Mortar during the Hardening",
  journal="Materiali in tehnologije",
  year="2016",
  volume="50",
  number="1",
  pages="7--10",
  doi="10.17222/mit.2014.130",
  issn="1580-2949",
  url="http://mit.imt.si/Revija/izvodi/mit161/topolar.pdf"
}