MASH Test 5-12 Evaluation of TxDOT T80SS Barrier with Soundwall

Report Number(s): 0-7086-R4

Description: The test installation was 120 ft long and consisted of a steel-reinforced concrete deck, barrier parapet, and soundwall. The 30-inch-wide, 12-inch-thick deck cantilever was anchored to the foundation wall. The single-slope parapet was 42 inches tall, 12 inches wide at top, and 20 inches wide at bottom, with a continuous slope on the traffic side. The field side of the single-slope parapet had a 1½-inch inset from the deck to a height of 19½ inches. The soundwall was 9 inches wide and 54 inches tall, bringing the total height of the parapet soundwall system to 96 inches from grade. The soundwall was centered on the top of the single-slope parapet, providing an offset of 1½ inches from the top traffic and field side corners of the parapet to the faces of the soundwall. There was a single 2-inch-wide joint through the deck, parapet, and soundwall 30 ft downstream from the end of the installation. This joint was reinforced with four 1-inch-diameter rebar dowels. One end of each dowel was cast into the concrete, and the other side was in a PVC sleeve to allow movement across an expansion joint. Two dowel bars were in the parapet and two were in the sound wall.

Test Level: 5

MASH Test Number: 5-12

Proprietary/Non-proprietary: Proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: TxDOT & FHWA