However, no details about the technical requirements are defined either in this standard or in other national regulations. Several research groups around the world are working on the standardization of the EAF slag in hydraulic mixes; in Europe, groups from Spain, Italy, and Greece stand out, among others.

LEHIGH SLAG CEMENT PRODUCT DESCRIPTION Lehigh Slag Cement conforms to ASTM C989/AASHTO M 302 standard specifications for "Slag Cement as a Constituent in Concrete and Mortars" and CSA A3001 "Cementitious Material for Use in Concrete." Slag has cementitious properties similar to portland cement.

The steel slag produced during the primary stage of steel production is referred to as furnace slag or tap slag. This is the major source of steel slag aggregate. After being tapped from the furnace, the molten steel is transferred in a ladle for further refining to remove additional impurities still contained within the steel.

A prerequisite for the successful use of ferrous slag in the long term is that it meets the requirements for technical and environmental aspects given in harmonised European or national standards. Starting in 1990, most of the requirements given in national standards relevant for the building industry have been harmonised and replaced by European standards.

MSDS: Slag Page 5 of 6 Revised: 03/01/14 Section 9: PHYSICAL AND CHEMICAL PROPERTIES Physical State: Solid (powder). Evaporation Rate: NA. Appearance: Gray/black or brown/tan powder. pH (in water): 8-11 Odor: None. Boiling Point: >1000 o C Vapor Pressure: NA. Freezing Point: None, solid. Vapor Density: NA. Viscosity: None, solid. Specific Gravity: 2-3 Solubility in Water: Negligible