Road Making Plants and Machinery

Road Making Plants and Machinery 

In road construction project different machinery is required for different types of jobs. The sequence of

job operations can be as follows:

 1. Clearing the site.

 2. Formation of sub grade—Embankment or cutting.

 3. Spreading of material.

 4. Rolling or compaction.

 5. Surfacing.

 

Machinery used for clearing the site. For site clearance generally following machinery can be used:

  (a) Dozer—bull dozer, angle dozer, tree dozer, etc. 

  (b) Rooter or Ripper.

  (c) Tractor.

  (d) Scraper.

 Formation of sub grade.  For this purpose earth digging equipment is also used as drag line, shovel, etc.

For preparing the sub grade generally following machinery is used:

   (a) Tractor

   (b) Dozer

   (c) Grader

   (d) Shovel

   (e) Drag line

   (f) Clam shell

   (g) Trucks

   (h) Rollers

   ( i )Plough  etc.

Manufacturing and spreading of Material. For this operation generally following equipment is

required:

    (a) Crushers

    (b) Trucks

    (c) Aggregate distributors

4. Surfacing. Surfacing generally consists of the following types:

     (a) Bituminous surfacing

     (b) Concrete surfacing

     For bituminous surfacing following equipment is required:

     (i) Bitumen boiler

     (ii) Bitumen sprayer

     (iii) Aggregate spreader

     (iv) Bitumen mix spreading machine

     (v) Grouting, machine

     (vi) Rollers.

Concrete surfacing needs equipment as follows:

(i)                  Central batching and mixing plant

(ii)                concrete mixers

(iii)               Concrete pavers

(iv)              Concrete sprayer

(v)                 Concrete vibrators etc.