Education and Career Forum

Respected Sir, I want to know about Road construction, I want you to please answer these questions.
1> How is Road constructions done?
2> What is the procedure of Construction?
3> What are the Materials used in it?

Originally Posted by Unregistered

Respected Sir, I want to know about Road construction, I want you to please answer these questions.
1> How is Road constructions done?
2> What is the procedure of Construction?
3> What are the Materials used in it?

There are three types of the roads are to be constructed.
Flexible roads.
Rigid pavement roads.
Semi rigid pavement roads.

1. Road constructions can be completed in the layers works. Roads are constructed in the layers. There are total 3-4 layers.
First layer consist of boulders.
Second layer consist of Grinders.
3rd layer consist of 20mm-10mm gravels.

2. Procedure of construction.

^ Excavation.
^ Cutting Filling.
^ Pavement of boulders.
^ Dumping of first layer.
^ Pavement of second layer then dumping.
^ this process continue up to 3-4 layers.

3. There are many types of materials used in the construction.

Coal tar.
Fly ash.
Gravel.
Sand.
Surkhi/Lime.
Etc.