Influence of Moisture and Temperature of Calcium Silicate Bricks on Results of Measurements with Rebound Hammer

Abstract:

Testing with rebound hammers is influenced by various factors, like composition and components of tested material, treatment of tested surface, moisture content of tested material, temperature of material and environment. Influence of these factors on measurement results during testing concrete is described in technical literature and standards. Calcium silicate body can be characterized as non-cement based fine grained concrete, however, with considerably higher water absorbing capacity compared to standard concrete: ca 12-14% (fine aggregate bonded by hydration products of lime). To use rebound hammers for testing calcium silicate bricks, influence of selected factors on measurement results was tested. It was proved, that content of moisture and temperature of calcium silicate brick has influence on results of measurements with rebound hammer, and therefore it is necessary to take into account these influences.

• Periodical: Advanced Materials Research (Volume 1000)
• Pages: 352-355
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1000.352
• Online since: August 2014
• Authors: Jiří Brožovský*
• Keywords: Calcium Silicate Brick, Moisture, NDT, Rebound Hammer, Temperature

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