Tarif M. Jaber, Jaber Engineering Consulting, Inc. and Frank J. Nelson, Oregon Department of Transportation Imagine designing bridges with an expected service life of 100 to 120 years. That is what the Oregon Department of Transportation (ORDOT) is considering as
IMPROVED COMPRESSIVE STRENGTH TESTING
Nicholas J. Carino, Engineering Consultant The relevant standards related to compressive strength testing are AASHTO T 23 (ASTM C 31) for making and curing specimens, AASHTO T 231 (ASTM C 617) for capping, and AASHTO T 22 (ASTM C 39)
HPC FOR WOODROW WILSON MEMORIAL BRIDGE
Alan Kite, Parsons The Woodrow Wilson Memorial Bridge project, located approximately 8 miles (13 km) south and within sight of downtown Washington, DC, involves the structural replacement and capacity upgrades of the existing structure over the Potomac River. The new
DECK CRACKING REPAIR CRITERIA IN TEXAS
William R. Cox, Texas Department of Transportation Bridge deck cracking provides access for oxygen, moisture, and chlorides to reach and corrode steel reinforcement. The resulting corrosion can cause deck deterioration, increased maintenance, and shorter service life. Repairing cracks in new
HPC OVERLAY FOR GREEN RIVER BRIDGE, UTAH
Tarif Jaber, Jaber Engineering Consulting, Inc. In many states, it is widely believed that the use of advanced materials such as high performance concrete (HPC) is only feasible near large cities. Many engineers, contractors, and the industry in general believe