An assesment of interlocking concrete block pavements

A number of interlocking concrete block pavements (lCBP's) in applications ranging from residential streets to a quarry access road have been monitored. This wc.rkhas included the changing nature of the block layer; particularly its stiffness. The latter quali ty has been assessed by means of the force required to remove a single block from the pavement. This, and other data have been used to test a series of models, the objective being to provide a more complete understanding of the way in which lCBP's function under load. The paper will report on the in-situ testing, some related laboratory tests and the conclusions drawn regarding lCBP design guides.