Publication detail

Evaluation of frost resistance of calcium silicate masonry units with ultrasonic pulse and resonance methods

BROŽOVSKÝ, J.

Original Title

Evaluation of frost resistance of calcium silicate masonry units with ultrasonic pulse and resonance methods

Type

journal article - other

Language

English

Original Abstract

Freeze-thaw resistance is one of the basic parameters of durability of construction materials. Methods of its evaluation vary; most often it is evaluated on the basis of strength of samples before and after the test of frost resistance. To certain extent, standards also codify the use of dynamic non-destructive methods (ultrasonic and pulse method) capable of detecting changes in micro-structure. The decisive factor for evaluation of frost resistance of calcium silicate bricks is compressive strength. Results of the research focused on verification of applicability of ultrasonic pulse method and resonance method proved practical applicability for evaluation of frost resistance of calcium silicate bricks. Difference between parameters of non-destructive testing before and after freezing was -1.1% to -9.9%, depending on the number of testing cycles and quality of calcium silicate bricks. Both ultrasonic pulse method and resonance method are applicable for evaluation of frost resistance of calcium silicate bricks. Relevant criteria were determined for evaluation of frost resistance of calcium silicate bricks based on the parameter of non-destructive tests.

Keywords

calcium silicate brick, NDT, freeze-thaw resistance, ultrasonic pulse method, resonance method

Authors

BROŽOVSKÝ, J.

RIV year

2014

Released

1. 12. 2014

Publisher

Ruská akademie věd

Location

Ruská Federace

ISBN

0130-3082

Periodical

Defektoskopiya

Year of study

2014

Number

10

State

Russian Federation

Pages from

66

Pages to

76

Pages count

11

BibTex

@article{BUT111204,
  author="Jiří {Brožovský}",
  title="Evaluation of frost resistance of calcium silicate masonry units with ultrasonic pulse and resonance methods",
  journal="Defektoskopiya",
  year="2014",
  volume="2014",
  number="10",
  pages="66--76",
  issn="0130-3082"
}