Detail publikace
Nondestructive Testing of Advanced Concrete Structure during Lifetime
PAZDERA, L. TOPOLÁŘ, L. SMUTNÝ, J. TIMČAKOVÁ, K.
Originální název
Nondestructive Testing of Advanced Concrete Structure during Lifetime
Anglický název
Nondestructive Testing of Advanced Concrete Structure during Lifetime
Jazyk
en
Originální abstrakt
The paper reports on measurements and analysis of the measurements during hardening and drying of specimens using selected acoustic nondestructive testing techniques. An integrated approach was created for better understanding of the relations between the lifetime cycle and the development of the mechanical properties of concrete. Acoustic emission, impact echo, and ultrasonic techniques were applied simultaneously to the same mixtures. These techniques and results are presented on alkali-activated slag mortars. The acoustic emission method detects transient elastic waves within the material, caused by the release of cumulated stress energy, which can be mechanical, thermal, or chemical. Hence, the cause is a phenomenon which releases elastic energy into the material, which then spreads in the form of an elastic wave. The impact echo method is based on physical laws of elastic stress wave propagation in solids generated by mechanical impulse. Ultrasonic testing is commonly used to find flaws in materials or to assess wave velocity spreading.
Anglický abstrakt
The paper reports on measurements and analysis of the measurements during hardening and drying of specimens using selected acoustic nondestructive testing techniques. An integrated approach was created for better understanding of the relations between the lifetime cycle and the development of the mechanical properties of concrete. Acoustic emission, impact echo, and ultrasonic techniques were applied simultaneously to the same mixtures. These techniques and results are presented on alkali-activated slag mortars. The acoustic emission method detects transient elastic waves within the material, caused by the release of cumulated stress energy, which can be mechanical, thermal, or chemical. Hence, the cause is a phenomenon which releases elastic energy into the material, which then spreads in the form of an elastic wave. The impact echo method is based on physical laws of elastic stress wave propagation in solids generated by mechanical impulse. Ultrasonic testing is commonly used to find flaws in materials or to assess wave velocity spreading.
Plný text v Digitální knihovně
Dokumenty
BibTex
@article{BUT115208,
author="Luboš {Pazdera} and Libor {Topolář} and Jaroslav {Smutný} and Kristýna {Timčaková}",
title="Nondestructive Testing of Advanced Concrete Structure during Lifetime",
annote="The paper reports on measurements and analysis of the measurements during hardening and drying of specimens using selected acoustic nondestructive testing techniques. An integrated approach was created for better understanding of the relations between the lifetime cycle and the development of the mechanical properties of concrete. Acoustic emission, impact echo, and ultrasonic techniques were applied simultaneously to the same mixtures. These techniques and results are presented on alkali-activated slag mortars. The acoustic emission method detects transient elastic waves within the material, caused by the release of cumulated stress energy, which can be mechanical, thermal, or chemical. Hence, the cause is a phenomenon which releases elastic energy into the material, which then spreads in the form of an elastic wave. The impact echo method is based on physical laws of elastic stress wave propagation in solids generated by mechanical impulse. Ultrasonic testing is commonly used to find flaws in materials or to assess wave velocity spreading.",
address="Hindawi Publishing Corporation",
chapter="115208",
doi="10.1155/2015/286469",
institution="Hindawi Publishing Corporation",
number="7",
volume="2015",
year="2015",
month="july",
pages="1--5",
publisher="Hindawi Publishing Corporation",
type="journal article in Web of Science"
}