Previously, only technical guides and professional recommendations were available in France, Japan, the United States and Switzerland. These documents did not have an “official” status, which made referencing and using them in projects difficult.
Now, their standardization will allow for clear and codified specifications to be established, both:
- for hardware referenced by the NF P18-470 standard: “Ultra-High Performance Fiber-Reinforced Concrete — Specifications, Performance, Production and Conformity”, published in July 2016
- and for sizing, in reference to the NF P18-710 standard: “National Addition to Eurocode 2 — Design of Concrete Structures: Specific Rules for Ultra-High Performance Fiber-Reinforced Concrete (UHPFRC)”
It should be noted that the standard specifying execution rules is still being written (NF P18-451: “Execution of concrete structures — specific rules for UHPC”). It is set to be published in Q4 2017.
Through positive feedback and a lack of serious incidents, the standardization of UHPC technology attests that it has become the norm and has been thoroughly mastered by the construction industry.
This is in large part a result of work carried out by Ductal® teams during the past 20 years. The company contributed not only to projects in France, but also to those around the world, developing technical solutions and establishing rules governing computation, implementation, etc. Their unique experience combined with local initiatives is what has allowed other countries to begin similar work on standardization, including the United States, Canada, China and Germany.
This dynamic harnesses the technology's maturity and accelerated development to tackle 21st century construction challenges.