Glass-fibre reinforced vinylester composites

In the particular case of the apphcation of glass-fibre reinforced vinylester composites as internal reinforcement for concrete bridge deck slabs, the results showed their superior fatigue performance and longer fatigue life when compared with the steel-reinforced ones (El-Ragaby et al., 2007). 

Resin transfer moulding (RTM) is a low-pressure variation of transfer moulding where, instead of granules or preforms, a pre-mixed resin and catalyst (hardener) is injected into a closed mould containing dry glass, carbon or aramid fibre reinforcement. When the resin has cooled, the mould is opened and the composite part ejected. The resins used include polyester, vinylester, epoxies, phenolics and methyl methacrylate combined with pigments and fillers. Applications include small complex aircraft and automotive components as well as automotive body parts, baths and containers. 

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