Some reference standards are also indicated. Items currently in the works may show in italics. The term is often extended to work in brick and tile. Ancient examples of immense irregular blocks of stone, laid together without mortar, have been found throughout Europe, Americas, Africa, and Asia. The ancient Greeks and Romans developed masonry techniques that are still used today.
Rubble masonry uses irregular and coarsely jointed quarried or field stone.
Ashlar masonry contains carefully worked stones set with fine, close joints. Either kind of masonry may be laid with or without mortar. Back to the top P Pave Tech Van Vehicle with three cameras that record video images of the pavement surface, pavement profile, rutting and faulting. Piezo Accelerometer Sensor that measures the vertical acceleration of concrete slabs under dynamic loadings. Duties may also includes the design, development and creation of test databases, test plans and scripts.