Plants and equipment used in highway construction

Equipment and plant used in highway construction |Infra Bazaar

Posted By:Infra Bazaar

There are several equipments that are specifically used in the final stages of construction or in the maintenance of highways. They include scrapers, dozers, loaders and Excavators. They are innovative products of superior quality, built on a tradition of integrity to carry out the rapid expansion that is witnessed in the highway construction.

The construction of highways has 3 phases, rough grading -earthmoving, fine grading -sub-grade preparation and surfacing, which includes gravel, concrete, asphalt, (or any combination of the three). Compaction is a major element of highway construction and it goes a long way to ensure maximum life of the road structure. Maximum compaction is necessary for a great highway.

In the fine grading operations there is a need to grade surfaces to very fine tolerances and changing the moisture level in the material being compacted. The Machines which add moisture are water trucks and graders and which reduce moisture levels include discs, mixers, and graders.

Graders are used to create flat surfaces

In the Paving stage today machines can produce large quantities of paved surfaces in record time. A drilling machine, a chip spreader, which lays down the aggregate on top of a bituminous binder, a compactor, and a cold planer are used. The surface thus made is ready for traffic.

Vibratory roller compactor is used to compact soil, gravel, concrete, or asphalt. It ensures a smooth, even surface and achieves the required density.

Padded Drum Compactor is applied to compact soil, gravel, concrete, or asphalt.

The Concrete Plants come in two types being ready mix plants and central mix plants. A concrete plant has parts and accessories.

A Curb Machine takes concrete and creates curb and gutter continuously.

A Crusher reduces large rocks into smaller rocks, gravel, or rock dust. An Impact Crusher may be a horizontal shaft impactor or a vertical shaft impactor.

A Cone Crusher breaks rock by squeezing the rock twice at the the top, and again at a lower position also. It is suitable for crushing a variety of mid-hard and above mid-hard ores and rocks.

Asphalt distributors are effective in applying prime or tack coats on a surface in preparation for paving. They are in two forms truck mounted or trailer models and are vital equipment in any asphalt surface treatment project. There is an insulated tank with a heating system, a spray bar and unique control system. It is scientific and sophisticated equipment which produces a uniform spray.

An Asphalt Mixing Plant combines mineral aggregates sand and filler in a correct proportion to yield a great result. The mixture is heated and coated with a binder.

A Paver is used to lay asphalt.

Road Roller is used to press the asphalt and come in rubber tyre rollers double drum asphalt rollers. Their use is determined by the mixture used in the highways.

Cement Mixer homogeneously combines cement, aggregate, sand or gravel and water to form concrete. There is a revolving drum to mix the components.

Road Reclaimers work on the asphalt layer and mix it with the underlying base to stabilize the deterioration that has occurred. They add asphalt emulsions and binding agents during pulverization.

Combination Compactors are put to use for the compaction of asphalt base and sub-base courses for road construction and road maintenance.

A pneumatic compactor comes with advantages and provides a uniform degree of compaction compared to steel wheel rollers. The result is a tight, dense surface and increased density also.

Thus there are machines for all stages of highway construction that will ensure speedy time utilization, meeting of deadlines and efficient results.

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