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Author(s):	Drucker, Petra
Title:
Abstract:	The LCPC abrasivity test is regulated in the French standard NF P18-579 “Granulats: Essai d'abrasivité et de broyabilité” and has recently been used increasingly in German-speaking countries to quantify the abrasivity of granular soils. Using the example of a recent Danube gravel from the Prater in Vienna, the range of possible LCPC abrasivity coefficients, which can be determined for granular soils by making more or less use of the margin for interpretation allowed by the stated French standard, is demonstrated. The test results presented here should be of assistance in better understanding the validity of LCPC abrasivity coefficient considering the “actual” abrasivity of a soil. Some general factors with influence on the abrasivity or rather more on the wear caused by abrasive granular materials are discussed. Der LCPC-Abrasivitätsversuch ist in NF P18-579 “Granulats: Essai d'abrasivité et de broyabilité” geregelt und wird in der jüngsten Vergangenheit im deutschsprachigen Raum vermehrt zur Bezifferung der Abrasivität von Lockergesteinen herangezogen. Am Beispiel eines rezenten Donauschotters aus dem Wiener Prater wird die Bandbreite möglicher LCPC-Abrasivitätskoeffizienten aufgezeigt, die unter mehr oder weniger großer Ausnutzung des Interpretationsspielraums, den die genannte französische Norm zulässt, an Lockergestein ermittelt werden kann. Die vorgestellten Versuchsergebnisse sollen zu einem besseren Verständnis der Aussagekraft von LCPC-Abrasivitätskoeffizenten im Hinblick auf die “tatsächliche” Abrasivität eines Lockergesteins verhelfen. Einige allgemeine Einflussfaktoren auf die Abrasivität, bzw. vielmehr auf den Verschleiß durch körnige Abrasivstoffe, werden diskutiert.
Source:	Geomechanics and Tunnelling 4 (2011), No. 6
Page/s:	681-691
Language of Publication:	English/German

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