Publication detail

Bricks built in Masonry: Influence of Sounding Techniques and Moisture on Ultrasonic Pulse Transmission Velocity During Parameter Determination

BROŽOVSKÝ, J.

Original Title

Bricks built in Masonry: Influence of Sounding Techniques and Moisture on Ultrasonic Pulse Transmission Velocity During Parameter Determination

English Title

Bricks built in Masonry: Influence of Sounding Techniques and Moisture on Ultrasonic Pulse Transmission Velocity During Parameter Determination

Type

journal article - other

Language

en

Original Abstract

When examining brickwork, also ultrasonic pulse method is used to determinate the material properties such as strength, modulus of elasticity, and so on. In general terms, test results are influenced by many factors such as length of measuring base, probe frequency, specimen dimensions, moisture, and internal structure or its defects, and the like. Bricks built in masonry can show various moisture and structure values, but also defects related to manufacturing technology which are acceptable in the light of use nevertheless, they influence test results when testing the bricks by ultrasonic pulse method. Analysis of findings concerning the influence of moisture and brick sounding technique implies that test results are influenced in varying degrees. The highest reproducibility ratio is shown in case of calcium silicate bricks and the lowest one occurs with extruded clay bricks. Here, synergic action of moisture, state of structure (porosity), and clinker defects are manifested. To interpret correctly the test results as obtained by ultrasonic pulse method applied to built-in bricks, it is necessary to take those factors into account. Identical sounding techniques must be always applied in order to obtain comparable test results.

English abstract

When examining brickwork, also ultrasonic pulse method is used to determinate the material properties such as strength, modulus of elasticity, and so on. In general terms, test results are influenced by many factors such as length of measuring base, probe frequency, specimen dimensions, moisture, and internal structure or its defects, and the like. Bricks built in masonry can show various moisture and structure values, but also defects related to manufacturing technology which are acceptable in the light of use nevertheless, they influence test results when testing the bricks by ultrasonic pulse method. Analysis of findings concerning the influence of moisture and brick sounding technique implies that test results are influenced in varying degrees. The highest reproducibility ratio is shown in case of calcium silicate bricks and the lowest one occurs with extruded clay bricks. Here, synergic action of moisture, state of structure (porosity), and clinker defects are manifested. To interpret correctly the test results as obtained by ultrasonic pulse method applied to built-in bricks, it is necessary to take those factors into account. Identical sounding techniques must be always applied in order to obtain comparable test results.

Keywords

Ultrasonic pulse method, Clay brick, Silicate brick, Ultrasonic pulse velocity, Transmission, Moisture

RIV year

2013

Released

31.05.2013

Publisher

LANDESMUSEUM KARNTEN, MUSEUMGASSE 2, KLAGENFURT, AUSTRIA

Location

Rakousko

Pages from

200

Pages to

209

Pages count

10

BibTex


@article{BUT99881,
  author="Jiří {Brožovský}",
  title="Bricks built in Masonry: Influence of Sounding Techniques and Moisture on Ultrasonic Pulse Transmission Velocity During Parameter Determination",
  annote="When examining brickwork, also ultrasonic pulse method is used to determinate the material properties such as strength, modulus of elasticity, and so on. In general terms, test results are influenced by many factors such as length of measuring base, probe frequency, specimen dimensions, moisture, and internal structure or its defects, and the like. Bricks built in masonry can show various moisture and structure values, but also defects related to manufacturing technology which are acceptable in the light of use nevertheless, they influence test results when testing the bricks by ultrasonic pulse method. Analysis of findings concerning the influence of moisture and brick sounding technique implies that test results are influenced in varying degrees. The highest reproducibility ratio is shown in case of calcium silicate bricks and the lowest one occurs with extruded clay bricks. Here, synergic action of moisture, state of structure (porosity), and clinker defects are manifested. To interpret correctly the test results as obtained by ultrasonic pulse method applied to built-in bricks, it is necessary to take those factors into account. Identical sounding techniques must be always applied in order to obtain comparable test results.",
  address="LANDESMUSEUM KARNTEN, MUSEUMGASSE 2, KLAGENFURT, AUSTRIA",
  chapter="99881",
  institution="LANDESMUSEUM KARNTEN, MUSEUMGASSE 2, KLAGENFURT, AUSTRIA",
  number="5",
  volume="20",
  year="2013",
  month="may",
  pages="200--209",
  publisher="LANDESMUSEUM KARNTEN, MUSEUMGASSE 2, KLAGENFURT, AUSTRIA",
  type="journal article - other"
}