Detail publikačního výsledku

Rebound hammer tests of calcium silicate bricks – effects of internal compressive stress on measurement results

BROŽOVSKÝ, J.

Original Title

Rebound hammer tests of calcium silicate bricks – effects of internal compressive stress on measurement results

English Title

Rebound hammer tests of calcium silicate bricks – effects of internal compressive stress on measurement results

Type

Paper in proceedings (conference paper)

Original Abstract

The rebound hammers of the Schmidt system belong among the non-destructive testing methods that are used for determining compressive strength of building materials, most often concrete and rocks. Calibration relations between the rebound number and compressive strength must be available to determine the compressive strength. Calibration relations are determined on the basis of destructive and non-destructive tests of test specimens. This paper deals with the effects of internal compressive stress in calcium sili-cate bricks on measurement results obtained using the L-type Schmidt hammer. Based on the obtained information, in order to process calibration relations, it is recommended to apply such force to the test specimens, which corresponds to the internal compressive stress 10-15% of the final compressive strength. We do not recommend measuring on firmly supported bricks only.

English abstract

The rebound hammers of the Schmidt system belong among the non-destructive testing methods that are used for determining compressive strength of building materials, most often concrete and rocks. Calibration relations between the rebound number and compressive strength must be available to determine the compressive strength. Calibration relations are determined on the basis of destructive and non-destructive tests of test specimens. This paper deals with the effects of internal compressive stress in calcium sili-cate bricks on measurement results obtained using the L-type Schmidt hammer. Based on the obtained information, in order to process calibration relations, it is recommended to apply such force to the test specimens, which corresponds to the internal compressive stress 10-15% of the final compressive strength. We do not recommend measuring on firmly supported bricks only.

Keywords

calcium silicate brick, rebound hammer, calibration relationships, internal stress.

Key words in English

calcium silicate brick, rebound hammer, calibration relationships, internal stress.

Authors

BROŽOVSKÝ, J.

Released

01.06.2014

Publisher

Trans Tech Publications,

Location

Switzerland

ISBN

978-3-03835-168-9

Book

Recent Engineering Decisions in Industry

Edition

1

ISBN

1660-9336

Periodical

Applied Mechanics and Materials

Volume

2014

Number

595

State

Swiss Confederation

Pages from

155

Pages to

158

Pages count

4

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@inproceedings{BUT108314,
  author="Jiří {Brožovský}",
  title="Rebound hammer tests of calcium silicate bricks – effects of internal compressive stress on measurement results",
  booktitle="Recent Engineering Decisions in Industry",
  year="2014",
  series="1",
  journal="Applied Mechanics and Materials",
  volume="2014",
  number="595",
  pages="155--158",
  publisher="Trans Tech Publications,",
  address="Switzerland",
  isbn="978-3-03835-168-9",
  issn="1660-9336"
}