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Book Chapter

Application of a new method for rapid quality assessment of renewable aggregate resources in alpine regions

By
S. Pfleiderer
S. Pfleiderer
Geological Survey of Austria, Neulinggasse 38, 1030 Vienna, Austria
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M. Heinrich
M. Heinrich
Geological Survey of Austria, Neulinggasse 38, 1030 Vienna, Austria
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J. Rabeder
J. Rabeder
Geological Survey of Austria, Neulinggasse 38, 1030 Vienna, Austria
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H. Reitner
H. Reitner
Geological Survey of Austria, Neulinggasse 38, 1030 Vienna, Austria
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T. Untersweg
T. Untersweg
Geological Survey of Austria, Neulinggasse 38, 1030 Vienna, Austria
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I. Wimmer-Frey
I. Wimmer-Frey
Geological Survey of Austria, Neulinggasse 38, 1030 Vienna, Austria
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Published:
January 01, 2016

Abstract

Alluvial fans, valley fills and debris cones represent economically significant, natural aggregate resources in the alpine regions of Austria. Due to continual erosion they constitute renewable sources of sand and gravel. However, knowledge of their petrographic properties and resulting aggregate quality is scant. An automated evaluation method was developed to estimate petrographic characteristics and predict resource suitability. This method makes use of the fact that the properties of a gravel deposit depend on the morphology and geology of the provenance area. Area percentages of geological units in the source area were expected to mirror the litho-spectrum of the gravel resource. Petrographic analysis of 13 field samples shows that this is indeed the case. Discrepancies amount to 0–10%; larger deviations occur for grain size fractions <2 mm in the presence of soft rock types such as mica-schist or paragneiss. Forecasts of aggregate quality on the basis of lithological composition and grain size characteristics were compared to operational data of five gravel pits. The actual usage of the material agrees with predictions in four out of the five cases.

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Contents

Geological Society, London, Special Publications

Sustainable Use of Traditional Geomaterials in Construction Practice

R. Přikryl
R. Přikryl
Charles University in Prague, Czech Republic
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Á. Török
Á. Török
Budapest University of Technology and Economics, Hungary
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M. Gomez-Heras
M. Gomez-Heras
Institute of Geosciences (CSIC, UCM), Spain
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K. Miskovsky
K. Miskovsky
Envix Nord AB, Sweden
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M. Theodoridou
M. Theodoridou
University of Cyprus, Cyprus
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Geological Society of London
Volume
416
ISBN electronic:
9781862397187
Publication date:
January 01, 2016

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