Determines ductility of formed asphalt/cement or semi-solid bitumen by measuring distance of elongation before breaking point when ends of a briquet are pulled apart at a specific speed and temperature. Tests three briquets simultaneously. D.C. direct drive motor maintains constant speed, entirely vibration-free. Speeds of 1/4, 1 or 5cm per minute are selected via lever shift on mechanical gear box. Single brass lead screw mounted above water level prevents agitation of water and premature rupture of specimens. A traveling pointer adjusts to zero starting position and indicates exact position of carriage on a linear centimeter scale attached to trough's front edge. Elongation (pull) capacity is maximum carriage travel (150cm) with automatic stop. Polished stainless steel trough has overflow connection. Gears are bronze; all other parts are solid brass to prevent rusting. Features 6' (183cm) cord, feed-through switch and 3-prong plug. Includes 3 standard H-1080 briquet molds with H-1090 plates. Trough overall dimension: 11-3/4x74x6-3/8"H. Meets ASTM D113, AASHTO T51.