Detail publikačního výsledku

Ultrasonic pulse method-influence of internal compressive stress on results of testing calcium silicate bricks

BROŽOVSKÝ, J.

Originální název

Ultrasonic pulse method-influence of internal compressive stress on results of testing calcium silicate bricks

Anglický název

Ultrasonic pulse method-influence of internal compressive stress on results of testing calcium silicate bricks

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Measuring with ultrasonic pulse method is influenced by various factors, like loading in particular inner tension when material built in a construction is tested. The paper researches influence of inner tension (load) on testing of calcium silicate bricks with ultrasonic pulse method. Calcium silicate bricks were loaded with force corresponding to 0 % (unloaded test specimens), 10 %, 20 %, 50 %, 60 % of ultimate compressive strength with various content of humidity (dried samples, w=2 %, w=8 % and samples saturated with water). It was found that ultrasonic pulse velocity is not considerably influenced at load of 10% and 20% of ultimate strength of bricks. However, ultrasonic pulse velocity considerably decreases after loading at 50% and 60% of ultimate compressive strength. Most of theo-retical assumptions concerning mentioned concrete stated in technical literature were confirmed, however, particular values were different because of differences between concrete and calcium silicate bricks.

Anglický abstrakt

Measuring with ultrasonic pulse method is influenced by various factors, like loading in particular inner tension when material built in a construction is tested. The paper researches influence of inner tension (load) on testing of calcium silicate bricks with ultrasonic pulse method. Calcium silicate bricks were loaded with force corresponding to 0 % (unloaded test specimens), 10 %, 20 %, 50 %, 60 % of ultimate compressive strength with various content of humidity (dried samples, w=2 %, w=8 % and samples saturated with water). It was found that ultrasonic pulse velocity is not considerably influenced at load of 10% and 20% of ultimate strength of bricks. However, ultrasonic pulse velocity considerably decreases after loading at 50% and 60% of ultimate compressive strength. Most of theo-retical assumptions concerning mentioned concrete stated in technical literature were confirmed, however, particular values were different because of differences between concrete and calcium silicate bricks.

Klíčová slova

ultrasonic pulse method, calcium silicate brick, internal stress, ultrasonic pulse velocity, dynamic Young's modulus of elasticity

Klíčová slova v angličtině

ultrasonic pulse method, calcium silicate brick, internal stress, ultrasonic pulse velocity, dynamic Young's modulus of elasticity

Autoři

BROŽOVSKÝ, J.

Rok RIV

2017

Vydáno

13.10.2016

Nakladatel

Trans Tech Publications Ltd

Místo

Švýcarsko

ISBN

978-3-0357-1079-3

Kniha

Special Concrete and Composites 2016

Edice

1

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

722

Číslo

1

Stát

Švýcarská konfederace

Strany od

260

Strany do

266

Strany počet

7

URL

https://www.scientific.net/KEM.722.260

BibTex

@inproceedings{BUT129755,
  author="Jiří {Brožovský}",
  title="Ultrasonic pulse method-influence of internal compressive stress on results of testing calcium silicate bricks",
  booktitle="Special Concrete and Composites 2016",
  year="2016",
  series="1",
  journal="Key Engineering Materials (print)",
  volume="722",
  number="1",
  pages="260--266",
  publisher="Trans Tech Publications Ltd",
  address="Švýcarsko",
  doi="10.4028/www.scientific.net/KEM.722.260",
  isbn="978-3-0357-1079-3",
  issn="1013-9826",
  url="https://www.scientific.net/KEM.722.260"
}