Novel cementitious systems comprised of gypsum, calcined clay, and clinker consisting essentially of hydraulic calcium silicates are disclosed which have the following properties: (1) a water demand of less than about 33% nc; (2) one-day strengths of at least about 1000 psi; and (3) low alkali functionality....http://www.google.es/patents/US5626665?utm_source=gb-gplus-sharePatente US5626665 - Cementitious systems and novel methods of making the same
Cementitious systems and novel methods of making the same