The trial is taking place on its Hampshire County Council highways maintenance contract.
The trial will test the performance and resilience of the recycled kerbs in small areas in locations used by a high number of heavy vehicles.
Plastic kerbing contains 88% recycled material and is cut with hand tools so, unlike concrete, it does not create crystalline silica dust and because it is lighter reduces handling injury risks.
Matthew Riches, Skanska’s operations director, said: “We can lay four times faster than traditional methods and that’s significant as we look to find ways to deliver a greener, more cost-effective service.
“Exploring use of recycled products like these is an important step forward as we work towards our target of becoming carbon neutral by 2045.”