Abstract: A process for producing Portland cement clinker at low temperatures fixing the sulfur produced by burning high sulfur content coke fuel. The invention also describes a Portland cement clinker that includes new additional phases.

Abstract: A process for producing Portland cement clinker at low temperatures fixing the sulfur produced by burning high sulfur content coke fuel. The invention also describes a Portland cement clinker that includes new additional phases.

Abstract: The present invention relates to a family of white clinker compositions with a high capacity to fix sulfur derived from a high sulfur content pet-coke used as fuel in the manufacture thereof, which further exhibits low fuel composition and fast setting, achieved by being comprised of the following amounts of clinker phases in percentage by weight: 3CaO.SiO2 (C3S): 40 to 75, 2CaO.SiO2 (C2S): 10 to 35, 3CaO.Al2O3 (C3A): 0 to 15, CaO.SO3 (CS): 0 to 10, 4CaO.3Al2O3.SO3 (C4A3{hacek over (S)}): 2 to 15, 11CaO.7Al2O3.CaF2 (C11A7.CaF2): 0 to 5, total % CaF2: 0.3 to 1.5 measured as CaF2, % Fe2O3: 0 to 0.5 and a SO3 content between 1.5 to 5% by weight obtained through the calcination of a raw meal containing CaO, SiO2, Al2O3, and CaF2, using as fuel, pet-coke with a sulfur content higher than 5% and at temperatures between 2192 and 2462° F., without the addition of essentially additive containing SO3 in the raw meal.

Abstract: A concrete-based floor or coating with anti-microbial effect, comprising a base material and an effective amount of at least one microbicide organic agent, mixed directly with the base material is described; the base material is a mixture containing cement, fine aggregates, solid aggregates, additives and water; where the microbicide agent mixed with the base material provides an efficient and long lasting anti-microbial effect.