Cement

With an installed production capacity of 54.5 million metric tons per year, we are one of the largest cement producers worldwide

Cement may be found in all infrastructure works, from the simplest to the most complex. This includes street furniture, cement blocks, floors, foundations, roofs, large dams, sanitation works, highways, edifications, ports, bridges, art artifacts, concrete; cement is also a basic component of concrete and mortar.​

We have 34 plants and 22 cement grinding mills worldwide (as of dec-2014)​, and we are qualified to supply the most varied specifications of cement for constructions of all sizes, as may be seen in the gallery of large constructions in which our products are present

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Innovation

Our investment in research and development enables us to offer our customers highly specialized cements developed for the most diverse and complex applications.

We have also invested heavily in reducing CO2 emissions in cement production through substituting clinker, the main component of all types of cement, with materials that provide the end product with the same technical properties. One example is pozzolan cement, produced in some of our units in Brazil, and which uses pozzolan as a raw material. Highly resistant and durable, pozzolan is also sustainable: in addition to emitting 50% less CO₂ than clinker in its production process, pozzolan requires 25% less energy, 40% less water, generates 10% less waste, as well as costing 6% less to produce compared with the traditional process.

To learn more about this type of cement click here​​

PRODUCTION PROCESS

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1

Pre homogenization

1
2

Raw Mill

2
3

Clinker production

3
4

Cooling

4
5
5

Cement grinding

6
6

Dispatch

 
10

PRODUÇÃO DO CLÍNQUER

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Antes de ser inserida no forno rotativo a farinha passa pela torre de ciclones, que são dutos utilizados para efetuar a troca térmica entre as partículas “frias” da farinha alimentada (cerca de 60°C) e os gases “quentes” (cerca de 1110oC) provenientes do forno. Através da seqüência de ciclones fluem os gases quentes provenientes do forno em contra-corrente com a matéria prima. Ao final do processo a farinha é alimentada ao forno com cerca de 870oC enquanto os gases são exauridos com cerca em 370oC, em média. Após isso a farinha pré-calcinada entra no forno onde permanece por um tempo de aproximadamente 30 a 45 minutos e atinge temperaturas máximas de 1.450°C, garantindo a formação de uma rocha artificial chamada de CLÍNQUER.

  • 1Pre homogenization
  • 2Raw Mill
  • 3Clinker production
  • 4Cooling
  • 5Cement grinding
  • 6Dispatch​​​​