• Le béton et l'acier

What is concrete?

What is concrete? The history of concrete would go back to the Egyptians (-2600 years BC).  It was a mixture of lime, clay, sand and water. It is really not far from what is currently used. We simply replaced lime by clinker which is also called "burnt lime" ... and rightly so. There [...]

2021-02-09T14:30:26+04:0027 January, 2021|press|
  • Loi PINEL 2021

What’s new for the PINEL law in 2021?

What's new for the PINEL law in 2021? You're not dreaming, despite the economic crisis caused by COVID-19, the government has still managed to deprive privateindividuals of valuable assistance in buying a home. As a result, this measure also deprives developers of as many projects. Colline Groupe has decided to explain all this [...]

2021-02-10T10:14:00+04:0019 January, 2021|Company, press|
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