Slag quality requirements
National Standards (GB/203-94) of the granulated blast furnace slag of the quality requirements are as follows:
1, granulated blast furnace slag mass coefficient K should not be less than 1.2; (enterprise internal control standards are not less than 1.6)
2, granulated blast furnace slag content of manganese compounds in order to MnO shall not exceed 4%, manganese alloy granulated blast furnace slag of MnO to allow the relaxation to 15%; sulfide content (in terms of sulfur) can not exceed 3%; fluoride content of (as fluorine dollars) shall not be greater than 2%;
3, granulated blast furnace slag loose capacity of not more than 1.2kg / L, maximum diameter of not more than 100mm, more than 10mm particle content (by weight) is not greater than 8%;
4, granulated blast furnace slag shall not be mixed with foreign inclusions, such as iron tip mud, without the massive quench slag, etc.;
5, slag without drying before the period of storage into the grains from the moment when liquid cooling is not appropriate for 3 months. ggbfs
Slag powder Quality Standard
National Standards (GB/T18045-2000) <used in cement and concrete in the granulated blast furnace slag powder "provides as follows:
1, granulated blast furnace slag powder (referred to as slag) Definitions; GB/T203 meet standard requirements of the granulated blast furnace slag by drying, grinding (or adding a small amount of gypsum grinding together) to achieve a considerable fineness, and in line with the corresponding activity index powder, slag grinding Tokimitsu Xu adding grinding aids, by adding the amount of not more than 1% of the quality of slag powder;
2, slag powder density of not less than 2.8g/cm3; than the surface area of not less than 350m2/kg; (corporate internal control standards: not less than 400m2/kg.)
3, slag powder is divided into three, S105, S95, S75, their corresponding activity index 7 days is not lower than 95%, 75% and 55%, 28 days is not less than 105%, 95% and 75%, mobile Ratio is less than 85%, 90% and 95%.
4, slag powder moisture content less than 1.0%. 5, sulfur trioxide is not greater than 4.0%.
6, ion is not more than 0.02%. 7, loss on ignition is not more than 3.0%.
Main features:
● reduce the slump loss ● ● greatly enhance the durability of concrete in concrete significantly enhance the role of
● Excellent ● Reinforced Concrete alkali-aggregate inhibitors, corrosion resistance ● improve the pumpability of concrete ● reduce the bleeding of concrete
National Standards (GB/203-94) of the granulated blast furnace slag of the quality requirements are as follows:
1, granulated blast furnace slag mass coefficient K should not be less than 1.2; (enterprise internal control standards are not less than 1.6)
2, granulated blast furnace slag content of manganese compounds in order to MnO shall not exceed 4%, manganese alloy granulated blast furnace slag of MnO to allow the relaxation to 15%; sulfide content (in terms of sulfur) can not exceed 3%; fluoride content of (as fluorine dollars) shall not be greater than 2%;
3, granulated blast furnace slag loose capacity of not more than 1.2kg / L, maximum diameter of not more than 100mm, more than 10mm particle content (by weight) is not greater than 8%;
4, granulated blast furnace slag shall not be mixed with foreign inclusions, such as iron tip mud, without the massive quench slag, etc.;
5, slag without drying before the period of storage into the grains from the moment when liquid cooling is not appropriate for 3 months. ggbfs
Slag powder Quality Standard
National Standards (GB/T18045-2000) <used in cement and concrete in the granulated blast furnace slag powder "provides as follows:
1, granulated blast furnace slag powder (referred to as slag) Definitions; GB/T203 meet standard requirements of the granulated blast furnace slag by drying, grinding (or adding a small amount of gypsum grinding together) to achieve a considerable fineness, and in line with the corresponding activity index powder, slag grinding Tokimitsu Xu adding grinding aids, by adding the amount of not more than 1% of the quality of slag powder;
2, slag powder density of not less than 2.8g/cm3; than the surface area of not less than 350m2/kg; (corporate internal control standards: not less than 400m2/kg.)
3, slag powder is divided into three, S105, S95, S75, their corresponding activity index 7 days is not lower than 95%, 75% and 55%, 28 days is not less than 105%, 95% and 75%, mobile Ratio is less than 85%, 90% and 95%.
4, slag powder moisture content less than 1.0%. 5, sulfur trioxide is not greater than 4.0%.
6, ion is not more than 0.02%. 7, loss on ignition is not more than 3.0%.
Main features:
● reduce the slump loss ● ● greatly enhance the durability of concrete in concrete significantly enhance the role of
● Excellent ● Reinforced Concrete alkali-aggregate inhibitors, corrosion resistance ● improve the pumpability of concrete ● reduce the bleeding of concrete
