1 Scope
This standard specifies the definition, components and materials, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of ground granulated blast furnace slag powder.
This standard is applicable to ground granulated blast furnace slag powder used as cement admixture and concrete additive.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this standard.
GB 175 "Common Portland Cement"
GB/T 176 "Methods for Chemical Analysis of Cement" (GB/T 176-1996, eqv ISO 680:1990)
GB/T 203 "Granulated Blastfurnace Slag Used for Cement Production"
GB/T 208 "Standard Test Method for Cement Density"
GB/T 2419 "Test Method for Fluidity of Cement Mortar"
GB/T 5483 "Gypsum and Anhydrite" (GB/T 5483-1996, neq ISO 1587:1975)
GB 6566 "Limit of Radionuclides in Building Materials"
GB/T 8074 "Method of Determination for Specific Surface of Cement-Blaine Method"
GB 9774 "Sacks for Packing Cement"
GB 12573 "Sampling Method for Cement"
GB/T 17671 "Method of Testing Cements-Determination of Strength" (GB/T 17671-1999, idt ISO 679:1989)
JC/T 420 "Method for Chemical Analysis of Chlorin in Cement"
JC/T 667 "Grinding Aids for Use in the Manufacture of Cement"
3 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
Ground granulated blast furnace slag powder
Ground granulated blast furnace slag powder refers to a powder taking the ground granulated blast furnace slag as the major raw material and adding a small amount of gypsum to be ground into a certain fineness, which is referred to as slag powder.
4 Components and Materials
4.1 Slag
Comply with ground granulated blast furnace slag specified in GB/T 203.
4.2 Gypsum
Comply with Category G or Category M above Grade 2 (including) gypsum or mixed gypsum specified in GB/T 5483.
4.3 Grinding aid
Comply with JC/T 667; the adding quantity shall not exceed 0.5% of slag powder mass.
5 Technical Requirements
Contents
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Components and Materials
5 Technical Requirements
6 Test Methods
7 Inspection Rules
8 Packaging, Marking, Transportation and Storage
Appendix A (Normative) Determination of Activity Index and Fluidity Ratio of Slag Powder
Appendix B (Normative) Determination of Slag Powder Water Content
Appendix C (Normative) Determination Method for Glass Body Content of Slag Powder
