Free and restrained shrinkage behaviours of OPC and slag concretes with admixed polypropylene fibres

Aly, T.K., Sanjayan, J.G. and Collins, Francis 2008, Free and restrained shrinkage behaviours of OPC and slag concretes with admixed polypropylene fibres, in ISEC-4 : Proceedings of 4th International Structural Engineering and Construction Conference, Taylor &​ Francis, London, Eng., pp. 463-469.

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Title Free and restrained shrinkage behaviours of OPC and slag concretes with admixed polypropylene fibres
Author(s) Aly, T.K.
Sanjayan, J.G.
Collins, FrancisORCID iD for Collins, Francis orcid.org/0000-0001-6331-5390
Conference name Structural Engineering and Construction. International Conference (4th : 2007 : Melbourne, Victoria)
Conference location Melbourne, Victoria
Conference dates 26-28 Sep. 2007
Title of proceedings ISEC-4 : Proceedings of 4th International Structural Engineering and Construction Conference
Publication date 2008
Conference series Innovations in Structural Engineering and Construction
Start page 463
End page 469
Total pages 6
Publisher Taylor &​ Francis
Place of publication London, Eng.
Keyword(s) cracking tendency
restrained shrinkage
granulated blast-furnace slag
polypropylene fibre
Summary This paper presents the results of an investigation that studied the effects of admixed polypropylene (PP) fibres on the long-term drying shrinkage of hardened concrete. Five concrete mixtures, made with 100% Ordinary Portland Cement (OPC) as the binder and containing different volume fractions of PP fibre (0%, 0.05%, 0.1%, 0.2% and 0.5%) were tested. Also, three concrete mixtures were made with 65 % slag-blended cement binder incorporating 0% and 0.2% volume fraction of PP. The results show higher water loss and higher drying shrinkages in concretes that incorporate PP fibres than concrete without fibre. The results of early age cracking tendency of slag concrete, with and without fibre, under fully restrained and drying conditions, show that that PP fibre concrete had higher cracking tendency than concrete without fibre. Higher cracking tendency of PP fibre concrete was due to higher drying shrinkage and elastic moduli.
ISBN 9780415457552
Language eng
Field of Research 090505 Infrastructure Engineering and Asset Management
090503 Construction Materials
Socio Economic Objective 870301 Cement and Concrete Materials
HERDC Research category E1.1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2008, Taylor & Francis
Persistent URL http://hdl.handle.net/10536/DRO/DU:30078576

Document type: Conference Paper
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