For pavement marking contractors, peeling up temporary tape in construction zones is a notoriously difficult and painstaking job, and often puts them into a situation where they are exposed to live traffic. A couple of years ago, PK Contracting set out to make this process easier for their workers after an employee survey confirmed peeling up tape is the worst part of their job.
The company, based in Troy, Michigan, first tried building a machine that would peel up temporary tape, but found that while it helped, the tape on the market still proved difficult to remove.
“The problem was that the tapes that were available on the market from all the suppliers did a great job of going down, but if the job was any length of time, they were very difficult to peel up and the tape would break apart,” said Chris Shea, CEO of PK Contracting.
Fast forward to today, and a pilot project coordinated between PK Contracting, the Michigan Department of Transportation (MDOT) and 3M has successfully produced promising results with a new easier-to-peel tape that’s now in final testing stages.
A Pilot Project Comes Together
After realizing the need for a more durable temporary tape product, PK Contracting reached out to 3M and asked about the possibility of manufacturing a stronger tape that wouldn’t break apart when removing from the roadway, either mechanically or by hand. 3M quickly got to work creating some samples of materials to test, one of which Shea said looked very promising. “We thought, we’ve got a potential home run here,” he said.
In January 2019, Shea and his brother Jim Shea, founder of PK Contracting, met with MDOT director Paul Ajegba to discuss a possible pilot project to test this new 3M Tape along with others to see if they would be a good fit to add to Michigan’s Qualified Product List. With a dedication to innovation, worker safety and improving working conditions, Ajegba gave the pilot the green light and it was soon under way.
Involved from the start were Chris Brookes, Work Zone Delivery Engineer for MDOT and Chuck Bergmann, MDOT Work Zone Technician. Their forward-thinking approach to traffic safety initiatives meant they both understood the need to move the pilot project along quickly given the potential benefits to workers and motorists.
Beginning in July 2019, the pilot project was held on I-94 by the Detroit Metropolitan Wayne County Airport Metro Airport, where a number of bridges needed decks and joints rehabilitated. A multitude of traffic switches would be needed on both concrete and asphalt over the course of the construction project, making it the perfect site for product testing. 3M and another manufacturer supplied their existing QPL products and a new, 3M version for testing.
Gathering Results
Between the six bridges and shifting traffic lanes, the pilot project offered 24 spots to test the tapes. The 4-inch wide tapes were applied, side-by-side in differing combinations to create 8-inch wide traffic lane lines. After six to eight weeks, the tape would be peeled up and monitored for tearing and ease of removal. Shea said the results were as he predicted—the existing QPL tapes proved difficult to peel, while the new 3M tape came up easily and intact.
“There was virtually zero breakage of the 3M Tape, and with the machines that we had built to mechanically peel the tape, we were able to peel the tape up at a rate of about three miles an hour,” he said.