Abstract: A formwork for a circumferential jacketing surround of a pipe with an envelope having opposing top and bottom layers interconnected by opposing end panels and opposing first and second side edges defining open ends configured with opposing mating connectors for joining the first side and the second side edges together for receiving in situ a curable material for a circumferential jacketing surround of the pipe, with interior linkages for holding the top and bottom layer in spaced-apart relation upon filling the envelope therewith, and further including longitudinal and transverse cables therein for reinforcement of the protective surround cover. A method for jacketing a pipeline with a circumferential reinforced surround and a method for forming a jacketing surround for a pipeline are disclosed.