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Crushed limestone as an aggregate in concrete production: the Cyprus case

By
I. Ioannou
I. Ioannou
University of Cyprus, Department of Civil and Environmental Engineering, 75 Kallipoleos Avenue, P.O. Box 20537,1678 Nicosia, Cyprus
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M. F. Petrou
M. F. Petrou
University of Cyprus, Department of Civil and Environmental Engineering, 75 Kallipoleos Avenue, P.O. Box 20537,1678 Nicosia, Cyprus
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R. Fournari
R. Fournari
University of Cyprus, Department of Civil and Environmental Engineering, 75 Kallipoleos Avenue, P.O. Box 20537,1678 Nicosia, Cyprus
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A. Andreou
A. Andreou
University of Cyprus, Department of Civil and Environmental Engineering, 75 Kallipoleos Avenue, P.O. Box 20537,1678 Nicosia, CyprusUniversity of Patras, Department of Geology, 26500 Patras, Greece
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C. Hadjigeorgiou
C. Hadjigeorgiou
Ministry of Agriculture, Natural Resources and Environment, Geological Survey Department, 1415 Nicosia, Cyprus
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B. Tsikouras
B. Tsikouras
University of Patras, Department of Geology, 26500 Patras, Greece
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K. Hatzipanagiotou
K. Hatzipanagiotou
University of Patras, Department of Geology, 26500 Patras, Greece
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Published:
January 01, 2010

Abstract

Limestones in Cyprus are mainly quarried for the production of coarse and fine aggregates to be used in concrete. The objective of this paper is to examine the properties of crushed limestone aggregates. The petrographical and physico-mechanical properties of these aggregates are described and their suitability for concrete production is examined. The coarse crushed limestone aggregates from Cyprus have water absorption values exceeding 3.3%, which is considered high for concrete applications. Their abrasion resistance (Los Angeles) values are consistently above 23%, while their weathering coefficients generally range between 10 and 30%. The fine crushed limestone aggregates show significantly lower water absorption values (less than 2.2%) and higher weathering coefficients (above 35%) than the coarse aggregates. The weathering coefficient of crushed limestone aggregates increases with a decrease in the fraction size up to 5 mm, after which it remains fairly constant. The physico-mechanical properties of crushed limestone aggregates are distinctly variable irrespective of the fact that they belong to the same geological formation and show relatively similar petrography.

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Contents

Geological Society, London, Special Publications

Limestone in the Built Environment: Present-Day Challenges for the Preservation of the Past

B. J. Smith
B. J. Smith
Queen's University, Belfast, UK
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M. Gomez-Heras
M. Gomez-Heras
Queen's University, Belfast, UK Universidad Complutense de Madrid; Instituto de GeologÓa EconÓmica (CSIC-UCM), Spain
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H. A. Viles
H. A. Viles
Oxford University Centre for the Environment, UK
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J. Cassar
J. Cassar
University of Malta, Malta
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Geological Society of London
Volume
331
ISBN electronic:
9781862395794
Publication date:
January 01, 2010

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