The use of limestone fines as partial replacement of cement can lower the cost of concrete, protect the environment by reducing carbon dioxide emissions and thus contribute towards sustainable development. The effect of incorporating limestone fines on the mechanical and durability properties of mortar and concrete has been thoroughly investigated. However, little research has been done so far on the fracture behaviour of mortar and concrete beams containing limestone fines. In the present study, the effect of limestone as partial replacement of cement on strength and fracture behaviour of mortar and concrete was investigated. This was carried out experimentally by determining the load–deflection curves of concrete or mortar using the three-point flexural tests on notched samples so that the material characteristics at rupture, such as the fracture energy GF and fracture toughness, KI (stress intensity factor) for mode I of fracture could be deduced. The results showed that strength and fracture parameters were reduced with the increase of limestone fines in cement for both notched mortar and concrete beams.
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June 2014
Research Article|
September 12 2013
Fracture behaviour of concrete containing limestone fines
Belkacem Menadi, PhD;
Belkacem Menadi, PhD
1
Senior Lecturer of Construction Materials, Geomaterials Laboratory, Civil Engineering Department, University of Blida, Blida, Algeria
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Said Kenai, PhD;
Said Kenai, PhD
2
Professor of Construction Materials, Geomaterials Laboratory, Civil Engineering Department, University of Blida, Blida, Algeria
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Jamal M Khatib, BEng, MSc, PhD
Jamal M Khatib, BEng, MSc, PhD
3
Professor of Construction Materials, Faculty of Science and Engineering, University of Wolverhampton, UK
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Publisher: Emerald Publishing
Received:
September 18 2012
Accepted:
March 14 2013
Online ISSN: 1747-6518
Print ISSN: 1747-650X
ICE Publishing: All rights reserved
2014
Proceedings of the Institution of Civil Engineers - Construction Materials (2014) 167 (3): 162–170.
Article history
Received:
September 18 2012
Accepted:
March 14 2013
Citation
Menadi B, Kenai S, Khatib JM (2014), "Fracture behaviour of concrete containing limestone fines". Proceedings of the Institution of Civil Engineers - Construction Materials, Vol. 167 No. 3 pp. 162–170, doi: https://doi.org/10.1680/coma.12.00041
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