Step 1: The Receiving Facility
The aggregate receiving facilities allow trucks to empty their load directly into a hopper where it will be carried by a gaudier elevator to an aggregate silo with a capacity of 1.400 tons.
The cement is delivered by tanker trucks that unload their cargo into the silos through compressed air pressurized tight pipes.
Step 2: Aggregates storage
The aggregates are stored in a silo with six separate compartments. This type of storage makes it possible to prevent all types of moisture problems for the aggregates.
Step 3: Adjuvants storage
The adjuvants are delivered in 1000 liters barrels on a truck then emptied in tanks of 5000 liters by a pump.
Step 4: Cement storage
The cement is stored in waterproof silos equipped with filters. Carthage Cement has 4 cement silos with a capacity of 120 tons each for the vertical plant and two silos with a capacity of 80 tons at the mobile plant.
Step 5: Mixing
In the first place, the mixer brews cement, sand and gravel. Then the adjuvants and the water are added. The time and the quality of the mixing are essential elements for obtaining a good product: they are controlled and defined for each concrete composition.
Carthage Cement has three mixers :
- horizontal mixer of capacity 3.35 m3.
- vertical mixer with 2.25 m3capacity with two planetaries.
- vertical mixer with a capacity of 1 m3.
Step 6: The Control Station
Concrete plants in Carthage Cement are equipped with computer controlled production machines. The database contains all the formulas, compositions, customers and mixer trucks, and makes it possible to select with great rigor the adapted formula to the concrete ordered by a customer.
All orders produced are saved with a unique production voucher number that cannot be changed.
Cement, sand, gravel, water and additives are metered and weighed with a very good level of measurement uncertainty. Measurement defects do not exceed 1.5% (the standard requires a maximum of 3% for cement, gravel and sand and 5% for adjuvants).
Step 7: Delivery
Fresh concrete is conveyed to the building sites via mixer trucks with a capacity of 7 and 10 m3 in which it is kneaded all along the way. The majority of our BPE products contain fluidizing additives to avoid any concrete problem in the mixer trucks.