GFRPB Durability and Structural Design (Concrete 2021)

This webinar was recorded at Concrete 2021 and the speaker is Anthea Airey from Airey Taylor Consultants.
Reinforced concrete is a composite material with tensile strength enhanced by reinforcement. An avoidance strategy for the corrosion to reinforcement induced by chloride attack and carbonation, is the use of glass fibre reinforcement. This material is achieving rapid take-up in Australia in maritime facilities.
A desktop risk assessment suggests the durability of GFRP material is influenced by chemical and thermal deterioration mechanisms of the epoxy or vinyl ester binder indicating the need for quality assured polymers meeting Tg ≥ 100 °C. The properties of several different bar types now available in Australia are illustrated indicating a unique design required on a product-by-product basis.
Some key features of the differences between carbon steel reinforcement design and GFRP bar design are explained with reference to the available international standards. Work constructed and in progress designed by ATC include jetties, wharves, dolphins, crash barriers, precast walls, slab on grade and balconies in marine exposure zones.