GB/T 28293-2012 in English

《GB/T 28293-2012钢铁渣粉》由TC183（全国钢标准化技术委员会）归口，TC183SC18（全国钢标准化技术委员会冶金固废资源分会）执行，主管部门为中国钢铁工业协会。

Ground iron and steel slag

1 Scope

This standard specifies the definition, components and materials, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of ground iron and steel slag.

This standard is applicable to ground iron and steel slag used as concrete admixture and cement admixture. Ground iron and steel slag may be used in other building materials and products with reference to this standard.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB 175 Common portland cement
GB/T 176 Methods for chemical analysis of cement
GB/T 203 Granulated blastfurnace slag used for cement production
GB/T 208 Test method for determining cement density
GB/T 750 Autoclave method for soundness of portland cement
GB/T 1346 Test methods for water requirement of normal consistency, setting time and soundness of the portland cement
GB/T 2419 Test method for fluidity of cement mortar
GB/T 5483 Natural gypsum
GB 6566 Limits of radionuclides in building materials
GB/T 8074 Testing method for specific surface of cement—Blaine method
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB 9774 Sacks for packing cement
GB/T 12573 Sampling method for cement
GB/T 17671 Method of testing cements—Determination of strength
GB/T 21371 By-product gypsum used in cement
JC/T667 Processing additions for use in the manufacture of hydraulic cement
GB/T 022 Steel slag used for cement
YB/T 804 Terminology for iron and steel slag & treatment and utilization

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Components and materials
5 Activity grade
6 Technical requirements
7 Test methods
8 Inspection rules
9 Packaging, marking, transportation and storage
Annex A (Normative) Determination of water content in ground iron and steel slag
Annex B (Normative) Determination of activity index and fluidity ratio of ground iron and steel slag