Construction Period:03/2003 –02/2005

Client:Obajana Cement Factory, Dangote Industries

Services:Construction of process and auxiliary buildings for the cement plant plus design and construction of all infrastructure works

Cement Plant, Obajana

In March 2003, Julius Berger Nigeria PLC was awarded the contract for the civil works and construction of process and auxiliary buildings for a new cement factory. The plant was to be located on a greenfield area of 350ha in Obajana, Kogi State.

Historically, a large percentage of Nigeria´s demand for cement was covered through imports. The construction of the ObajanaCement Plant, with a maximum daily output of 14,000 tons of high quality cement, changed this situation and allowed the importation of cement to be reduced considerably.

Within a period of 24 months, two production lines were completed by Julius Berger Nigeria PLC including two 83m high raw mill silos and four 60m high cement silos. The work was carried out using pre-stressed concrete and specially designed sliding formwork.

All foundations, including bored pile foundations for the silos, pre-heater, rotary kiln and the ground slabs for several departments of the two production lines and as the foundation for the pre-crushers in the quarry were part of Julius Berger Nigeria PLC´s scope of work.

The design of the auxiliary buildings and facilities such as the power plant, the water storage tanks, the central control building and twelve substations allowed for insitureinforced concrete using traditional formwork methods.

An eight km long, elevated belt conveyor was built from the quarry to the cement plant.

The foundation works as well as the pre-cast

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were constructed by Julius Berger Nigeria PLC.

The main quantities of work comprised approx. 200,000cbm of reinforced concrete and 36,000cbm of blinding concrete; 25,000 tons of high tensile steel; 240,000sqm of traditional and 84,100sqm of slip formwork.

All infrastructure works including general earthworks and the construction of roads and concrete paved areas, as well as storm water drainage, were designed and executed by Julius Berger Nigeria PLC.

The project was handed over in February 2005.