Important parts of road pavements:
Prime Coat : Application of a low viscosity bituminous binder over a granular base to fill up the voids.
Tack Coat : Application of bituminous binder over a primed granular layer or an existing bituminous surface to provide a bond between it and the bituminous layers coming above it.
Surface Dressing : An application of a thin film of bituminous layer followed by stone aggregates rolled into firm position.
Premix Carpet : An open graded thin premix surfacing course. Bituminous Macadam : An open graded bituminous base course.
Grouted or : An open graded bituminous course in which Penetration Macadam the binder is sprayed to fill up the voids.
Dense Bituminous Macadam : A close-graded bituminous base course.
Bituminous Concrete : A dense hot-mix hot-laid bituminous surfacing course.
Marshall Test : A test on bituminous mixes to determine stability.
Semi-dense Bituminous : A hot-mix hot-laid bituminous surfacing Concrete course with substantial voids.
Contraction Joint : A transverse joint in concrete pavement intended to relieve tensile stresses caused by temperature changes.
Dowel Bar : A load transfer device at transverse joints.
Longitudinal Joint : A joint in the longitudinal direction in concrete pavements wider than single lane.
Tie Rod : A reinforcing bar across a longitudinal joint to prevent separation of adjoining slabs.
Expansion Joint : A joint provided to allow for the expansion of concrete slabs.
Slip Form Paver : A machine that lays concrete pavement without the need for side forms.