Versatile light rail bed paver

A concrete finishing machine for rail track bed construction, the machine comprising:

• an elongated, horizontally extending frame adapted to be deployed above a track bed;
• a plurality of vertically upright jack stands for supporting the frame, the jack stands supported by wheeled bogies adapted to rest upon and move over suitable supports provided at opposite sides of the track bed;
• a slidable carriage that is suspended within said frame and displaceable relative thereto;
• and,
• a plurality of downwardly extending, longitudinally displaceable paving heads suspended from said carriage for engaging and finishing wet concrete below, each paving head comprising a lower strike-off for forming channels in the concrete, and wherein adjacent paving heads are slidably positioned apart to form parallel plinth strips between selected adjacent channels.

A concrete finishing machine for rail track bed construction, the machine comprising:

• an elongated, horizontally extending frame adapted to be deployed above the track bed, the frame comprising at least one frame segment;
• a plurality of vertically upright jack stands for supporting the frame, the jack stands supported by wheeled bogies adapted to rest upon and move over suitable supports provided at opposite sides of the track bed, the jack stands adjustable in length;
• rollers for enabling the frame to slide relative to the jack-stands;
• a slidable carriage that is slidably displaceable within the frame, the carriage comprising wheels for engaging the frame;
• a plurality of downwardly extending, longitudinally displaceable paving heads suspended from said carriage for engaging and finishing wet concrete below, each paving head comprising a strike off adapted to contact wet concrete for forming channels, and wherein adjacent paving heads are slidable relative to the carriage and slidably positioned apart to form plinth strips between said channels;
• and,
• wherein the paving heads are suspended by head wheels that engage the carriage for enabling longitudinal adjustments of the heads relative to the carriage.