Andreas Lampropoulos

National Technical University of Athens, Laboratory of Reinforced Concrete, School of Civil Engineering, Faculty Member

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Dr Andreas Lampropoulos is currently an Assistant Professor in the Laboratory of Reinforced Concrete at the School of Civil Engineering of National Technical University of Athens (NTUA).
Dr Lampropoulos held various positions in the UK. He was appointed as Research Associate at the University of Liverpool (2011-2012) and as Lecturer (2012), Senior Lecturer (2014) and Principal Lecturer (2018) at the University of Brighton.
He obtained his Diploma (2003), MSc (2005) and PhD (2010) degrees in Civil Engineering (Structural Division) from the University of Patras in Greece.

Dr Lampropoulos is specialising in the following areas:
- Design and analysis of Reinforced Concrete (RC) structures
- Experimental methods for RC structures
- Repair and strengthening of existing structures
- Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC)
- Geopolymer concrete
Phone: +30 2107721316
Address: Laboratory of Reinforced Concrete, School of Civil Engineering
National Technical University of Athens (NTUA)
Iroon Polytechniou 9
Zografou 15772, Greece

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Fiber content and curing time effect on the tensile characteristics of ultra high performance fiber reinforced concrete

Structural Concrete, Apr 24, 2017

Ultra High Performance Fiber Reinforced Concrete (UHPFRC) is a concrete type with superior mechan... more Ultra High Performance Fiber Reinforced Concrete (UHPFRC) is a concrete type with superior mechanical properties and of a relatively high tensile strength. The tensile stressstrain characteristics of UHPFRC are highly affected by the mixture design and the curing regime. In the present study, an extensive experimental investigation has been conducted with direct tensile tests on a number of specimens that contained different percentages of steel fibers and different cement types were applied. Also, various curing regimes were investigated. Different models depending on the steel fiber amount were proposed for the simulation of the stress-strain and the stress-crack opening response of UHPFRC, while the fracture energy was also calculated for the different fiber contents. Finally, the effect of fiber content and curing time on the variation of the experimental results are discussed.

Andreas Lampropoulos

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