1 Scope
This standard specifies the terms and definitions, technical requirements, test methods, inspection rules, transportation and storage as well as quality certificate, etc. of steel slag for engineering backfill.
It is applicable to the steel slag for engineering backfill of industrial and civil buildings (structures).
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 6003.2 Test sieves - Technical requirements and testing - Part 2: Test sieves of metal wire cloth (GB/T 6003.2-1997, eqv ISO 3310-2:1990)
GB/T 8170 Rules for rounding off of numerical values
JTJ 057 Test methods of materials stabilized with inorganic binders for highway engineering
YB/T 4188 Test method for the content of magnetic metallic iron in steel slag
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
steel slag for engineering backfill
carbon steel slag which has been stabilized and qualified in stability
3.2
immersion expansion ratio
volume change ratio of steel slag after immersion under specified test conditions
3.3
maximum size
size of the smallest standard sieve pore through which any steel slag can completely pass through
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
6 Inspection rules
7 Marking,storage and quality certificate
Annex A (Normative) Determination method for the pulverization rate
Annex B (Normative) Determination method for the immersion expansion ratio of steel slag
Annex C (Normative) Determination method for the maximum size of steel slag
