NDLI: Effect of polypropylene fibers on shrinkage and cracking of concretes

Content Provider	Springer Nature Link
Author	Aly, T. Sanjayan, J. G. Collins, F.
Copyright Year	2008
Abstract	The effects of admixed polypropylene (PP) fibers on the drying shrinkage of hardened concrete are presented in this paper. Concrete mixtures made with Ordinary Portland cement (OPC) and OPC/Slag blended cements containing various volume fractions of PP fiber were tested. The results show small but consistently higher drying shrinkages in concretes incorporating PP fibers than that without fiber. The effect is more pronounced in slag concretes and in concretes cured for only 1 day. An attempt to explain this phenomenon was made by water loss, nitrogen adsorption, sorptivity and scanning electron microscopy tests on the same concretes. Additional moisture loss and porosity are proposed as possible reasons. The results of early-age restrained shrinkage tests on slag concretes show that PP fiber concrete had higher cracking tendency than the concrete without fiber. This was found to be due to higher shrinkage and elastic modulus of PP fiber concrete.
Starting Page	1741
Ending Page	1753
Page Count	13
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	41
Issue Number	10
e-ISSN	18716873
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-01-22
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Concrete Shrinkage Polypropylene fiber Restrained shrinkage Cracking Slag Sorptivity Water loss Building Materials Civil Engineering Operating Procedures, Materials Treatment Mechanical Engineering Theoretical and Applied Mechanics Structural Mechanics
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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