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Performance Evaluation of New Jersey’s Portable Concrete Barrier with a Bolted Configuration and Grouted Toes – Test No. NJPCB-2

REPORT NUMBER

TRP-03-340-18

AUTHORS

Surajkumar Bhakta, Karla Lechtenberg, Ronald Faller, John Reid, Bob Bielenberg, Erin Urbank

PUBLICATION DATE

2018-12-11

ABSTRACT

This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation’s (NJDOT’s) Precast Concrete Curb and Construction Barrier Curb, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the second system as part of this study. The objective of this research effort was to evaluate the safety performance of the NJDOT PCB, Type 4 (Alternative B) with a bolted configuration and grouted toes, corresponding to joint class D in the 2013 NJDOT Roadway Design Manual. All barrier segments were bolted to a concrete tarmac through the anchor pockets with 1-in. (25-mm) diameter ASTM F1554 Grade 36 threaded rods epoxied into 1⅛-in. (29-mm) diameter drilled holes in the concrete tarmac. Non-shrink grout wedges were placed at the toe of each barrier segment in every joint between adjacent barrier segments. The barrier was evaluated according to the Test Level 3 (TL-3) criteria set forth in the Manual for Assessing Safety Hardware (MASH 2009). The research study included one full-scale vehicle crash test with a 2270P pickup truck. Following the successful redirection of the pickup truck, the safety performance of the system was determined to be acceptable according to the test designation no. 3-11 evaluation criteria specified in MASH 2009. The 1100C small car crash test was deemed unnecessary due to previous testing. The barrier successfully met MASH 2009 TL-3 criteria. This report is the second of nine documents in the nine-test series.

KEYWORDS

Highway Safety, Crash Test, Roadside Appurtenances, Compliance Test, MASH 2009, Longitudinal Barrier, Portable Concrete Barrier, PCB, Anchored, Bolted, Epoxy, and Barrier Curb

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