Presentation On

STUDENT INDUSTRIAL WORK EXPERIENCE

SCHEME (SIWES)

Held at

KOPEK CONSTRUCTION LTD.(IBADAN, OYO STATE)

By

MUTIU AGUNBIADE

11/67CE/006

KWARA STATE UNIVERSITY

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SIWES

KOPEK Construction Ltd.

Various unit

Asphalt cement

Production

Pavement

Compaction

Conclusion

Reference

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SIWESThe Students Industrial Work Experience Scheme (SIWES) is a

skills development programme initiated by the Industrial Training

Fund (ITF), in 1973 to bridge the gap between theory and practice

among students of engineering and technology. It provides for on-

the-job practical experience for students as they are exposed to

work methods and techniques in handling equipment and

machinery that may not be available in their Institutions.

•provide students the opportunity to test their interest in a

particular career before permanent commitments are made.

•students will develop skills in the application of theory to

practical work situations.

•will increase a student's sense of responsibility.

•To prepare students for the work situation they are likely to

meet after graduation

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Kopek Construction Limited is a part of The ZARD group of

companies based in Ibadan, Oyo State of Nigeria. The group has

strong roots in different business areas like, Manufacturing,

Distribution, Construction, Packaging, Farming, Live stock,

Furniture, Education etc.,

Kopek Construction Limited was established in 1987, specialized in

roads and bridges construction and has about 40 professional and

2,500 non-professional staff.

Engaged in Road construction for the Government, World Bank

and other international organizations.

Presently they are working on :

Rehabilitation of 67km Ilesha to Akure road using Geotextile.

Construction of 6 km road in Ado- ekiti

Construction of ife, State of Osun.

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VARIOUS DEPARTMENT IN THE COMPANY

Accounting unit

Quantity Surveying unit

Surveying unit

Earthmoving Section

Laboratory Section

Engineering Section

Asphalt section.

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VARIOUS DEPARTMENT IN THE COMPANY

Accounting unit

Quantity Surveying unit

Surveying unit

Earthmoving Section

Laboratory Section

Engineering Section

Asphalt section.

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ASPHALT SECTION

This section deals with the production of Asphalt overlay and

laying of Asphalt cement.

Production of Asphalt concrete:

Material used: different sizes of aggregates, stone dust, filler and bitumen as the binder

Process Description:First, aggregates travels through the cold feed bins,

where initial proportioning of the aggregates takes

place, The aggregate is then sent to a drier, where the

moisture is removed and is heated in the pug mill. It

continues to the hot elevator by screens to the hot

bins. The screens provide the final separation of the

aggregate. The aggregate is dropped into the pug mill

for mixing with the bitumen. The mixture is then

dropped into a waiting truck or moved to a storage

silo.

Fig. 1 Batching Plant

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PROCESS DESCRIPTION

Fig. 2 Feed Bins Fig. 3 Pug mill

Fig. 4 Pug millFig. 5 Fuel Cylinder

PROCESS DESCRIPTION CONT’D

Fig. 6

Hot ElevatorFig. 8

Arial over view of Asphalt plant

Fig. 7 Screens 4/14/2015 9

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LAYING OF ASPHALT OVERLAY USING REINFORCEMENT.

First in the laying of the Asphalt, after the sub base has

been compacted, primed with bitumen emulsion, and

blinded. It will be opened to traffic for at least 24 hours

after which asphalt concrete can be placed on it. The

first step that was taken in laying of asphalt is to use a

sweeper, to sweep away all the blinding and dirt’s on

the surface we want to place the asphalt and then the

bitumen tanker spray bitumen emulsion at a spray rate

of 0.9 sq/m which the spraying will be monitored by

the laboratory technician, the bitumen will be allowed

to dry for some minutes then the binder asphalt

(asphalt with larger aggregates) will be placed on it at

a temperature ranging from 120°C to 140°C then it

will be compacted at a temperature of about 90°C, then

it will be open to traffic for about 24 hours before

laying the final layer wearing course.(Engr. Agboola

Stephen )

Fig. 9 Road Profile 4/14/2015 11

Bitumen is the first applied layer used to protect and stabilize the surface of the

base. We make use of Bitumen Emulsion .

The maximum amount to be applied between 0.9 and 2.3 l/m2

The temperature of the asphalt concrete leaving the plant should not be less

than 135°C nor more than 163°C

Fig.10 4/14/2015 12

1. Adequate compaction of asphalt is essential to ensure the mix

design performance expected service life and required density is

achieved.

2. The main factors influencing the successful compaction of asphalt

are:

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Rolling procedures and techniques.

Temperature of the mix.

Mix properties.

Soundness and stiffness of the

underlying base.

Type and numbers of rollers or other

compaction equipmentFig.11

PROCESS DESCRIPTION

Binder Course

Fig. 13 Primed Surface

Fig. 14 Paver

Fig. 12 Sweeper

Fig. 15 Roller4/14/201514

PROCESS DESCRIPTION CONT’D

Wearing Course

Fig. 16 Bitumen primed Surface

Fig. 17 Backhoe use in laying of Geotextile

Fig. 18 Geotextile Surface Fig. 19 Asphalt Blinded Geotextile Surface4/14/2015 15

PROCESS DESCRIPTION CONT’D

Fig. 23 Pneumatic tired roller

Fig. 20 Laying of Wearing Course Fig. 21 Laying of Wearing Course

Fig. 22 Vibratory Steel Drum compactor4/14/2015 16

The industrial training has helped me with the basic practical and

theoretical knowledge that I may not have gotten from the lecture

room. It also gave me the opportunity to have a feel of what it would be

like after graduation when I start working.

After my internship with Kopek Construction Company:

• I can effectively carry out a borrow pit test on any site to determine

the suitability of the soil.

• I can effectively assist in laying of Asphalt concrete with the use of

Geo-synthetics.

• I can easily identify different types of heavy duty machines used in

construction.

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REFERENCE

Engr. Agboola Stephen (Site Supervisor Kopek Construction Limited)

Engr. Afolabi Wahab (Site Engineer Kopek Construction Limited)

Mr Thomas Oyegoke (Senior Laboratory Technician Kopek Construction Limited)

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