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Airtech

Four Hour Fire Rating for FRP Structural Strengthening

16 December 2005

Fyfe Company has conducted an extensive research and development project that concluded with a Four Hour Fire Rating for their Tyfo fibre reinforced polymers with the Tyfo Advanced Fire Protection (AFP) System.

The Tyfo AFP System created by Fyfe is a two part system designed to minimize heat exposure as well as provide flame and smoke spread protection.

“Five Years ago FRP structural strengthening was limited by strict fire regulations for occupied buildings. Now Fyfe Company has overcome those limitations by inventing a new fireproofing material consisting of a cementitious component coupled with a hardened rock outer layer that provides up to a 4 hour fire rating with UL Approval and excellent flame and smoke spread protection,” said Ed Fyfe, President of Fyfe Company LLC.

The research conducted was to find cost effective means to provide fire protection for the Tyfo Fibrwrap Systems. Working in conjunction with the National Research Council in Canada and Underwriters Laboratories, Fyfe was able to conduct testing on reinforced concrete columns, beams and slabs while under load and exposed to fire.

A major concern regarding the use of composites for structural strengthening is fire. Elevated temperatures during a fire can cause epoxy resins to soften or burn, compromising the structural strength provided by the FRP, potentially leading to failures that could jeopardize the building, building occupants and rescue services.

The Tyfo AFP System has received Underwriter’s Laboratory Certification to meet the requirements of ASTM E-119 and ASTM E-84.