Installations 2017-03-01T10:18:48+00:00

OUR INSTALLATIONS

GAURAIN PLANT

CCB CURRENTLY HAS ONE OF THE LARGEST LIMESTONE DEPOSITS IN EUROPE AND PRODUCES CEMENTS, AGGREGATES AND CONCRETES ON THE GAURAIN SITE. FROM THIS TRIPLE PRODUCTION, THE GAURAIN PLANT HAS ACQUIRED FULL CONTROL OVER THE VARIOUS MATERIALS THAT ARE USED TO PRODUCE CONCRETE AND THIS COMBINED WITH MODERN INFRASTRUCTURES HELP CUT PRODUCTION AND DELIVERY TIMES.

The production of cement and aggregates requires increasingly extensive skills and know-how. CCB teams have renowned cutting-edge technical expertise. The efficiency of CCB’s employees and the high performance of its production tools have made CCB a partner you can rely on.

Significant investments, particularly in environmental areas, are deployed on an on-going basis. At every level, the Gaurain plant rolls out the finest technologies available to guarantee a high quality product, excellent service and low environmental impacts.

The limestone rock is extracted and carried by dumpers having a 150-ton payload to a dual-level crushing line where it is reduced to dimensions not exceeding 120 mm.
Depending on their composition, the stones are then routed to the stock-piles for aggregates facilities and the cement plant.
The chemical composition of the stones from the quarry is continuously analysed to adjust the amount of fondant additives (iron and aluminium) and the proportions of stones.
After a third crushing operation, the raw material is then introduced into a grinder and reduced to a powder called “raw mix”.
The raw mix is raised up to a height of 100 m then introduced into a heat exchanger equipped with a precalciner. It then crosses through the kiln which brings the material to 1,450°c. It comes out in the form of pellets called “clinker”. On leaving the kiln, the clinker falls into the grid cooler thus making a product with enhanced physical characteristics. It is also at the level of the cooler that the clinker heat is retrieved for the combustion of different fuels.
After being abruptly cooled on exiting the kiln, the clinker is stored in huge silos with a total capacity of 280,000 tons.
Each cement quality requires the use of clinker and a setting regulator.

  • By grinding clinker (> 95%), you get CEM I.
  • By grinding clinker (between 65 and 94%) and fly ash from power plants and/or granulated slag from blast furnaces and/or limestone, we get CEM II.
  • By simultaneously grinding clinker (between 20 and 64%) and blastfurnace slag we get CEM III.
  • By simultaneously grinding clinker (between 40 and 64%), fly ash and blastfurnace slag, we get CEM V.
A fully automated bagging unit completes these facilities. Two lines at a rate of 4,000 bags per hour bag a wide range of cements.
Nearly 85% of the cement produced is intended for the bulk market. The storage capacity is 80,000 tons. CCB has 11 truck loading lines, 2 wagon loading lines, a warehouse and barge loading dock on the Escaut river in Chercq as well as a sea loading bay in Ghent.
A pre-screening process, three screening lines and the re-crushing of aggregates produce 15 basic calibers from which over 80 grain sizes can be reconstituted depending on the customers’ needs.
A plant for the manufacture of treated broken stone complements these facilities.
The aggregates are shipped either by truck or by waterway (barge loading dock on the Escaut river in Chercq).
Aggregates are moved by trucks from the quarry to the hoppers. Each hopper receives a particular type of aggregate. Once weighed, the materials are brought by conveyor belts to the mixer.
The cement silos feed the mixer via Archimedes’ screws. Each quantity is measured and weighed.
When added to water and various liquid admixtures stored in barrels, the cement and aggregates are mixed to produce concrete. The maximum amount of concrete production is 50 or even 75% of the total volume of the tank. The time required to produce a homogeneous mixture of fresh concrete depends on several factors: the type of concrete required, the cleanliness of the tank, the degree of wear of the pallets.
Cement mixers can then be loaded for delivery to the customer.

CLYPOT AGGREGATE PRODUCTION UNIT

THE GOAL IS TO PRODUCE MATERIALS WITH GRAIN SIZES FROM 0 TO 32 MM AS WELL AS A 0/80 AND 60/120 FOR DECORATIVE USAGE (MAKING OF GABIONS).

The raw extracted material is transported by dumpers to a primary crusher and reduced to 0/250.
The 0/250 material is stock-piled then sent to a secondary impact crusher to reduce the materials to a maximum size of 32 mm.
The screening workshop processes +/- 3,000 T of material/day and offers 0/2, 2/6, 6/14, 14/10 and 20/32 sizes. Note that 0/2 and 2/6 are washed.