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Report of the RILEM International Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC-4) - Ann Arbor, Michigan, June 16-18, 2003



Title: Report of the RILEM International Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC-4) - Ann Arbor, Michigan, June 16-18, 2003
Author(s): A. E. Naaman, H.-W. Reinhardt
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 36
Issue: 264
Issue date: 2003-12-01
Publication year: 2003
Pages: 710 - 712
Total Pages: 3
Language: English


Abstract: High Performance Fiber Reinforced Cement Composites (HPFRCC) are characterized by a stress-strain response in tension that exhibits strain-hardening behavior accompanied by multiple cracking, and related relatively large energy absorption capacity.
This international workshop was the fourth in a series dealing with such composites.
The first international workshop on HPFRCC was organized in Mainz, Germany, June 1991, under the auspices of RILEM and ACI.
It was funded in part by US National Science Foundation (NSF) and by the Deutsche Forschungsgemeinschaft (the German NSF).
Other cosponsors included ACBM, the University of Michigan, the University of Stuttgart and the Alexander von Humboldt foundation.
The second workshop took place in Ann Arbor, Michigan, in June 1995, and the third in Mainz Germany, in June 1999.
In each case hard-cover proceedings were published as a special RILEM publication.
While the first workshop in 1991 included mostly US and German participants, subsequent workshops were opened to researchers from other countries.
This last workshop assembled about sixty participants from eighteen countries, with essentially same sponsors and co-sponsors.
Since the first workshop, continuous developments have occurred in new materials, processing, standardization, and in improved products for building and other structures.
Also, enhanced theory and modeling of HPFRCC can now better describe their behavior and explain their reinforcing mechanisms.
While the root definition of HPFRCC is simplest (that is to exhibit strain hardening and multiple cracking behavior in tension) to clearly differentiate them from other cement composites, this is not the only description of desirable performance.
Durability, ductility, fire resistance, impact resistance, diffusion, imperviousness, and constructability at reasonable cost, are other important attributes that need to be further clarified.
Additional sub-characterization for "deflection hardening" and "deflection softening" to reflect potential applications, has been defined.
One feature of this last workshop, is that the organizers pre-selected lead topics they believed offer technical challenges at this time.
The lead topics were: selfcompacting and self-consolidating FRC mixtures; fire resistance; impact and blast resistance; constitutive properties under reversed cyclic loading; modeling with discontinuous fibers; scale and size effects; and criteria for seismic applications.
Other important topics included hybrid composites, modeling bond, and design recommendations by RILEM TC-162.


Online publication: 2003-10-27
Classification: RILEM Bulletin
Publication type : full_text
Public price (Euros): free
doi: 10.1617/14103


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