Application of greener engineered cementitious composites for sustainable pavement overlay design

Garcez, E. O., Garcez, M. R. and Silva Filho, L. C. P. 2015, Application of greener engineered cementitious composites for sustainable pavement overlay design, in FC 2015 : Proceedings of the 8th International Conference on Fibre Concrete 2015, [The Conference], Prague, Czech Republic, pp. 159-169.

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Title Application of greener engineered cementitious composites for sustainable pavement overlay design
Author(s) Garcez, E. O.ORCID iD for Garcez, E. O. orcid.org/0000-0002-9586-472X
Garcez, M. R.
Silva Filho, L. C. P.
Conference name Fibre Concrete. International Conference (8th : 2015 : Prague, Czech Republic)
Conference location Prague, Czech Republic
Conference dates 2015/09/10 - 2015/09/11
Title of proceedings FC 2015 : Proceedings of the 8th International Conference on Fibre Concrete 2015
Publication date 2015
Conference series International Conference on Fibre Concrete
Start page 159
End page 169
Total pages 10
Publisher [The Conference]
Place of publication Prague, Czech Republic
Keyword(s) engineered cementitious composites
pavements
rehabilitation
concrete overlay
fiber reinforced composites
Summary Pavement rehabilitation is a subject that has continuously worried transport authorities. Many old pavements in service nowadays are approaching the end of their design service lives and are in dire need of major repair to continue serving. Both conventional Portland cement concrete and asphalt have been used in the rehabilitation of existing deteriorated concrete and hot-mix asphalt pavements. Although these solutions may provide a reasonable performance when well designed and constructed, a critical limitation on their service life is the occurrence of reflective cracks. None of the current repair techniques can totally eliminate this problem. However, recent data suggests that some advanced fiber reinforced composites, made with polimeric microfibers, known as Engineered Cementitious Composites (ECC), may advantageously be used to create a thin, durable and cost-effective overlay. This paper focuses on the development and characterisation of an ECC mixture made with high tenacity polypropylene fibers, which are less costly than PVA fibers originally used to develop ECCs. An experimental investigation was combined with a finite element analysis, in order to assess the performance of this new material, which is marked by its strain hardening behavior. Furthermore, a Life Cycle Assessment (LCA) exercise and a Life Cycle Cost (LCC) analysis were carried out to demonstrate that this kind of rehabilitation solution leads to a more sustainable overlay design.
ISBN 9788001056837
ISSN 2336-338X
Language eng
HERDC Research category E1.1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©[2015, The Conference]
Persistent URL http://hdl.handle.net/10536/DRO/DU:30101634

Document type: Conference Paper
Collection: School of Engineering
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