Method for producing cement

A method for producing cement useful for preparing pastes, mortars, concretes or other cement-based materials, which method comprises:

• providing cement particles and at least one of a first component including an SiO.sub.2 containing microfiller and a second component including a polymer in the form of a powdery water-reducing agent, mixing the cement and said at least one component intensively in a first treatment stage and in a dry state, whereby particles of the at least one component are adsorbed on surfaces of the cement particles to produce a resulting mixture of dry, coated cement particles, impacting the dry, coated cement particles from the first treatment stage during a second treatment stage in a milling device in which the coated cement particles in said mixture receive in quick succession a plurality of direct-changed impact impulses for producing shape deformations and microdefects in surfaces of the cement particles, resulting in modification of surface activity properties of the cement particles which provide to the cement particles increased surface energy and chemical reactivity so that the cement particles are attracted to each other to promote consolidation and agglomeration of the particles, and continuing said second treatment stage for a sufficient period of time in order that a 1-day compressive strength of a 20 millimeter per side cube of cement paste, which has been compacted under vibration and hardened at +20.degree. C. in a sealed container is at least equal to 60 MPa.