ISD DUNAFERR Zrt. produces blast furnace slag and converter slag as a result of its metallurgical activity. The slags are processed by Ferromark-Halna Kft. in accordance with EU standards, based on the ISD DUNAFERR quality control audit. Since 2015, metallurgical slags have been sold by Ferromark-Kereskedelmi Kft..
The mechanical properties of slags are very good. These are artificial rocks with the same uses as natural rocks. They are solid in structure, high in strength, and resistant to abrasion. Their use not only not degrades, but can improve the quality and durability of motorways and other construction products. Slag can be used to replace some of the mining of natural rocks, so there is no need to consider the landscape and environmental degradation effects associated with rock extraction.
Due to their properties, metallurgical slags are well suited for the following purposes: construction, roadworks, asphalt production, concrete production, railway beddings, agricultural soil improvement, water construction, recultivation, dam construction, thermal insulation material production (rock wool), insulating material production, geopolymer production, waste water treatment, recycling into technological processes.
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Slag type |
Area of application |
Relevant standards |
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cement production |
MSZ EN 197-1 relevant sections |
|
|
blast-furnace foamed slag "HKS" |
construction industry products manufacturing (e.g. chimney elements) |
MSZ EN 12620:2002+A1:2008 |
|
ground, air-cooled blast-furnace slag "ŐKK"
|
road construction (base layer) |
MSZ EN 13242:2002+A1:2008 |
|
construction industry products manufacturing |
MSZ EN 12620:2002+A1:2008 |
|
| railway track bed |
MSZ EN 13450:2003 |
|
|
road construction (base layer) |
MSZ EN 13242:2002+A1:2008 |
|
| road construction (concrete paving) |
MSZ EN 12620:2002+A1:2008 |
|
|
construction industry products manufacturing |
MSZ EN 12620:2002+A1:2008 |
|
|
cement production |
MSZ EN 197-1 relevant sections |
|
|
road construction (base layer) |
MSZ EN 13242:2002+A1:2008 |
DUNAFERR metallurgical slag types and fractions marketed with CE mark
Following the standard classification of fractions according to grain-size distribution, the new standard fraction size (mm/mm) is given in parentheses.
Certified by KTI Közlekedéstudományi Intézet Nonprofit Kft.
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GROUND, AIR-COOLED BLAST-FURNACE SLAG – „ŐKK” AIR-COOLED, GROUND AND SCREENED BLAST-FURNACE SLAG |
|
|
DUNAFERR ID |
MSZ EN 13242:2002+A1:2008 |
|
ŐKK 0/5 |
GA85 (0/8) |
|
ŐKK 0/20 |
GA80 (0/22,4) |
|
ŐKK 0/56 |
GA80 (0/63) |
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ŐKK 5/12 |
GC85-15 (4/16) |
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ŐKK 12/55 |
GC80-20 (11,2/45) |
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ŐKK 20/80 |
GC85-15 (22,4/90) |
|
ŐKK 60/120 |
GC80-20 (56/90) |
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BLAST-FURNACE FOAMED SLAG – "HKS" AIR-COOLED, SCREENED BLAST-FURNACE FOAMED SLAG |
|
|
DUNAFERR ID |
MSZ EN 12620:2002+A1:2008 |
|
HKS 0/7 |
GF85 (0/4) |
|
HKS 7/15 |
GC90/15 (4/16) |
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HKS 15/30 |
GC85/20 (8/31,5) |
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GROUND AND RETENTED BLAST-FURNACE SLAG – "ŐKS" GROUND, SCREENED AND RETENTED SLAG PRODUCED IN A CONVERTER OF BASIC LINING |
|
|
DUNAFERR ID |
MSZ EN 13242:2002+A1:2008 |
|
ÖKS 0/5 |
GA85 (0/8); GA75 (0/8) |
|
ÖKS 0/56 |
GA80 (0/63) |
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ÖKS 5/12 |
GC85-15 (4/16); GA85 (0/16) |
|
ÖKS 12/20 |
GC80-20 (8/16); GC85-15 (4/22,4) |
|
ÖKS 20/80 |
GC85-15 (22,4/90) |
|
DUNAFERR ID |
MSZ EN 12620:2002+A1:2008 |
|
ÖKS 5/12 |
GC90/15 (4/16) |
|
DUNAFERR ID |
MSZ EN 13450:2002 |
|
PKS 32/50 |
A (31,5/50) |
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GROUND SLAG FROM DUMP – "ŐHS" GROUND, SCREENED, MIXED METALLURGICAL SLAG |
|
|
DUNAFERR ID |
MSZ EN 13242:2002+A1:2008 |
|
ŐHS 0/5 |
GA85 (0/8); GA75 (0/8) |
|
ŐHS 0/20 |
GA85 (0/22,4) |
|
ŐHS 0/56 |
GA80 (0/63) |
|
ŐHS 5/12 |
GC85-15 (4/16); GA85 (0/16) |
|
ŐHS 12/20 |
GC85-15 (2/22,4); GC85-15 (4/22,4) |
|
ŐHS 20/80 |
GC80-20 (16/90); GC85-15 (22,4/90) |