
In road construction, the road does not only consist of one kind of layer. Among them, there are rigid, flexible, or composite layers. The pliable layer also consists of various layers. The layers here are the layers that are often used.
The following types of surface coatings are:
A. Asphalt Concrete Layer
Asphalt Concrete or tarmac layers are a layer on road construction consisting of coarse aggregate, fine aggregate, filler, and hard asphalt, which are mixed, spread, and compacted in a hot state at a certain temperature.
Laston consists of three layers, namely:
- Asphalt Concrete-Wearing Course (AC-WC).
- Asphalt Concrete – Binder Course (AC-BC)
- (Asphalt Concrete-Base or AC-Base)
For more details, see the image below.
B. Macadam Penetration Layer
Macadam Penetration Layer is a pavement layer consisting of principal aggregate with uniformly graded locking aggregate which is bound by asphalt by spraying it over the main aggregate and compacting it layer …