Prediction of bending strength of glass fiber reinforced methacrylate-based pipeline UV-CIPP rehabilitation materials based on machine learning

•A bending strength prediction model of cured-in-place-pipe materials was proposed.•The relations curing parameters, temperature and bending strength were established.•The curing parameters of ultraviolet cured-in-place-pipe materials were optimized.•The optimum curing parameters of curd-in-place-pipe material was obtained.•The optimum bending strength of cured-in-place-pipe material was obtained.