Detail publikace

To the problems of determination of dynamic elasticity modules of calcium silicate bricks by means of resonance method

Originální název

To the problems of determination of dynamic elasticity modules of calcium silicate bricks by means of resonance method

Anglický název

To the problems of determination of dynamic elasticity modules of calcium silicate bricks by means of resonance method

Jazyk

en

Originální abstrakt

Modulus of elasticity of building materials can be determined in a static way (loading in a press) or by means of non-destructive test methods (ultrasonic pulse method and resonance method); the parameter is most frequently determined for concrete and both methods of determining elasticity modulus are codified in Standards. Elasticity characteristics of calcium silicate bricks were determined by means of resonance test method. Because the shape of calcium silicate bricks (a block with oblong foot) is different from the shape of test specimens for concrete (usually blocks with square foot), expected frequencies for verification of accuracy of measurement by resonance method were determined. Moisture content of calcium silicate bricks (water absorbing capacity is up to 12-14%) has influence on the value of resonance frequency. Difference between dynamic Youngs modulus of elasticity from fundamental longitudinal and transverse resonant frequency is on average 2.8%.

Anglický abstrakt

Modulus of elasticity of building materials can be determined in a static way (loading in a press) or by means of non-destructive test methods (ultrasonic pulse method and resonance method); the parameter is most frequently determined for concrete and both methods of determining elasticity modulus are codified in Standards. Elasticity characteristics of calcium silicate bricks were determined by means of resonance test method. Because the shape of calcium silicate bricks (a block with oblong foot) is different from the shape of test specimens for concrete (usually blocks with square foot), expected frequencies for verification of accuracy of measurement by resonance method were determined. Moisture content of calcium silicate bricks (water absorbing capacity is up to 12-14%) has influence on the value of resonance frequency. Difference between dynamic Youngs modulus of elasticity from fundamental longitudinal and transverse resonant frequency is on average 2.8%.

BibTex


@inproceedings{BUT106312,
  author="Jiří {Brožovský} and Amos {Dufka}",
  title="To the problems of determination of dynamic elasticity modules of calcium silicate bricks by means of resonance method",
  annote="Modulus of elasticity of building materials can be determined in a static way (loading in a press) or by means of non-destructive test methods (ultrasonic pulse method and resonance method); the parameter is most frequently determined for concrete and both methods of determining
elasticity modulus are codified in Standards. Elasticity characteristics of calcium silicate bricks were determined by means of resonance test method. Because the shape of calcium silicate bricks (a block with oblong foot) is different from the shape of test specimens for concrete (usually blocks
with square foot), expected frequencies for verification of accuracy of measurement by resonance method were determined. Moisture content of calcium silicate bricks (water absorbing capacity is up to 12-14%) has influence on the value of resonance frequency. Difference between dynamic
Youngs modulus of elasticity from fundamental longitudinal and transverse resonant frequency is on average 2.8%.",
  address="Trans Tech Publications",
  booktitle="Binders and Materials XI",
  chapter="106312",
  edition="1",
  howpublished="online",
  institution="Trans Tech Publications",
  number="897",
  year="2014",
  month="february",
  pages="139--143",
  publisher="Trans Tech Publications",
  type="conference paper"
}