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DEPARTMENT OF CIVIL ENGINEERING

Industrial Visit

at

OM Construction

Visit Date: 28-June-2017

Between 11:00 am to 5:30 pm

Faculty co-coordinator Prepared by:

Prof. Ravi J Sachapara Prof.R.J.Sachapara

Prof. Heemika Upadhyay

Principal H.O.D.

Dr.H.M.Nimbark Prof. Kishan Purohit

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Content (1) Acknowledgement 3

(2) General Information 4

(3) Purpose of Visit 5

(4) What we learnt 5

(5) Conclusion 8

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ACKNOWLEDGEMENT

The students of 5th Semester Civil engineering Department, were really thankful to our principle Dr. H.M. Nimbark sir and head of department of

Prof. K.V. Purohit sir respectively for supports an educational visit of

Krishna RMC Plant.

We are also very thankful to Mr. Rajendrasinh Jhala of OM Construction

Plant have gave permission for a visit.

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General Information

Bituminous plant was established by Mr. Rajendrasinh Jhala seven years ago

with a Mixing plant at Rajathali, Bhavnagar, Gujarat. Over the next 7 years, the

group has created the new techniques of making roads in Bhavnagar.

Bituminous Plant The mixing and laying of bitumen for roads and pavements can be undertaken

using a range of different types of plant. The type of plant used will be

determined by the type of material that is required and the process adopted.

An asphalt plant is a plant used for the manufacture of asphalt, macadam and

other forms of coated road stone, sometimes collectively known

as blacktop or asphalt concrete.

The asphalt plant is mainly composed of cold aggregate supply system, drum

dryer, coal burner, coal feeder, dust collector, hot aggregate elevator, vibrating

screen, filler supply system, weighing and mixing system, asphalt storage,

bitumen supply system. All these components have characteristics that impact

not only the overall quality of the asphalt but also the effect on the environment.

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Purpose of Visit

Technical exposure of Asphalt Concrete, Manufacturing Processes and other

Engineering aspects of Asphalt Concrete Subject. Students have learnt Process

of making bituminous concrete, Material used in making of it. Test conducted on

Bitumen and aggregates. With this kind of industrial visit, we gained more

knowledge on Highway Material Technology application aside from the

theoretical aspect learned from the classrooms and laboratory.

What We Learnt

Bitumen plant o Introduction:

o Bitumen is a black or dark-coloured (solid, semi-solid, viscous),

amorphous, cementitious material that can be found in different forms,

such us rock asphalt, natural bitumen, tar and bitumen derived from oil,

which is referred to as petroleum bitumen. Currently most of the roads

globally are paved with bitumen. Today the world’s demand for bitumen

accounts for more than 100 million tons per year which is approximately

700 million barrels of bitumen consumed annually. Petroleum bitumen is

typically referred to as bitumen or asphalt.

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o Applications

Known for its adhesive and cohesive assets, bitumen is mostly utilised in the construction industry. Bitumen is applied on road paving because it is viscous

when hot, but solid once it cools down. Therefore Bitumen operates as the

binder/glue for pieces of the aggregate. Bitumen is applied in construction and maintenance of:

Highways

Airports Runways

Footways / Pedestrian Ways

Car parks

Racetracks Tennis courts

Roofing

Damp proofing Dams

Reservoir and pool linings

Soundproofing

Pipe coatings Cable Coatings

Paints

Building Water Proofing Tile underlying waterproofing

Newspaper Ink Production

In order realize the complexity of bitumen as a product an in-depth knowledge and detailed understanding for one of the way the roads are built is

crucial. Specialists in bitumen know bitumen as an advanced and complex

construction material, not as a mere by-product of the oil refining process. The

ultimate paving material (also referred to hot mix asphalt concrete – HMAC or

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HMA) consists of about 93 – 97% mineral aggregate (stone), sand and filler. The remaining percentage is bitumen.

RMC Plant o Introduction : o Ready-mix concrete is concrete that is manufactured in a factory

or batching plant, according to a set recipe, and then delivered to a work

site by truck mounted in–transit mixers. This results in a precise mixture, allowing specialty concrete mixtures to be developed and implemented on

construction sites. The first ready-mix factory was built in the 1930s, but

the industry did not begin to expand significantly until the 1960s, and it

has continued to grow since then. o Ready-mix concrete is often preferred over on-site concrete mixing

because of the precision of the mixture and reduced work site confusion.

o Ready-mix concrete, or RMC as it is popularly called, refers to concrete that is specifically manufactured for delivery to the customer's

construction site in a freshly mixed and plastic or unhardened state.

Concrete itself is a mixture of Portland cement, water and aggregates

comprising sand and gravel or crushed stone. Ready-mix concrete is bought and sold by volume - usually expressed in cubic meters.

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Conclusion

The visit was planned to Om Construction so that the students all together

could study about three plants i.e Bitumen Plant, RMC Plant and Jaw Crusher.

Firstly in Bitumen Plant, students got to know the raw materials for the

production of final bitumen, different units of bitumen plant and their

working, control unit, transportation of raw materials to plant and of final product to market.

Secondly in RMC Plant, students came to about how Ready Mix Concrete

is prepared, different units of RMC Plant, transportation of raw materials to plant and of final product to market, advantages of using RMC.

Thirdly at Crusher, students got to know about different types of crusher,

different units of jaw crusher, its working as it was installed at the site.

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