Cement (from the lat.: caementum = quarry stone, chips of stone) is a hydraulic binder used in the manufacture of mortar and concrete. It is an inorganic, non-metallic, finely ground material which, after mixing with water, independently sets and cures, as a result of chemical reactions with the mixing water.

The actual inventor of Portland cement is recognised as being the Englishman Joseph Aspdin (1778-1855). In 1824, he received the patent for "An Improvement in the Mode of Producing an Artificial Stone", in which he used the expression Portland cement. The significance of sintering had apparently first been recognised by Isaac Charles Johnson (1811-1911) in 1844.

The following grades are available:

  • CEM I 32.5 R
  • CEM I 42.5 R
  • CEM II B – S 32.5 R
  • CEM II B – S 42.5 N
  • CEM II A – S 42.5 R

Other types of cement are available on request.

lafarge zement gmbh

Photo: Lafarge Zement GmbH