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Microfume® Concrete

Amorphous light grey silicon oxide powder, obtained by filtering the dusts extracted from the silicon and ferrosilicon production in an electric arc furnace. Microfume® Concrete is widely used in concrete and fibre cement industries. In addition to its pozzolanic properties, Microfume® is also a very good filler due to its particle size. These combined properties lead to an extended life expectancy in corrosive environments (resistance to chlorides, acids and sulphates) and improved strength.

Physical and chemical characteristics: Analysis** EN 13263-1-2:2006 SiO2 (%) Min. 85 Free C (%) Free Si (%) Max. 0.4 Free CaO (%) Max. 1.0 SO3 (%) Max. 2.0 Na2O eq (%) To indicate Cl- (%) Max. 0.3 Loss on Ignition (at 950°C during 1h) (%) Max. 4.0 Specific surface (BET) (m2/g) 15 - 35 Activity index at 28 days Min.100 Bulk Density (kg/m3): Undensified Densified H2O (%) > 45 µm (%) pH Brightness L* ** % by weight of dry mass. *** Lower limit detection Packaging: Storage: Safety: Applications: Typical 96 1.8 0.14 <0.1*** 0.25 0.5 0.02 2.0 23.2 120 150 - 170 350 - 650 0.3 1.2 7.5 45 Frequency weekly weekly monthly weekly weekly weekly monthly weekly monthly monthly daily daily weekly

Bulk in trucks or in big-bags. Others packaging on request. Dry storage. Avoid contact with moisture. Product totally amorphous. Safety data sheet available on request. Mortars, Concretes: High and Very High Performance Concretes, shotcretes. Refractory castables. Fibre cements. Anglefort, Château-Feuillet, Laudun, Les Clavaux, Montricher, Pierrefitte (France). Polokwane (South Africa). Complies with the ISO 9001:2000, EN 13263-1-2:2006 and/or ASTM C1240:2005 norms. Complies with the ISO 14001:2000 norm.

Production sites :

Quality Control:


November 2007 FERROPEM 517, avenue de la Boisse ­ 73025 Chambéry Tél:+33 (0)4 79 68 31 33 / Fax:+33 (0)4 79 68 31 32 E-mail: [email protected]


eng_Microfume Concrete

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