GB/T 28294-2012 in English

《GB/T 28294-2012钢渣复合料》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。

Steel slag composite material

1 Scope

This standard specifies the terms and definitions, composition and requirements of raw materials, strength grades, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of steel slag composite materials for concrete.

This standard is applicable to steel slag composite materials (hereinafter referred to as composite materials) for road concrete, ordinary mortar, and self-supporting structural concrete.

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 750-1992 Autoclave method for soundness of portland cement
GB/T 1345 The test sieving method for fineness of 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 8076 Concrete admixtures
GB 9774 Sacks for packing cement
GB/T 12573 Sampling method for cement
GB/T 14684-2001 Sand for building
GB/T 17671-1999 Method of testing cements - Determination of strength
GB/T 18046-2008 Ground granulated blast furnace slag used for cement and concrete
GB/T 21372 Portland cement clinker
JC/T 681 Mixer for mixing mortars
JC/T 727 Apparatus for determining normal consistency and setting time of cement paste
YB/T 022 Steel slag used for cement
YB/T 140 Methods of chemical analysis for steel slag
YB/T 804 Terminology for iron and steel slag & treatment and utilization
3 Terms and definitions

For the purposes of this document, the terms and definitions given in YB/T 804 and the following apply.

3.1
steel slag composite material
material composed of steel slag and compound, which is formulated according to specific application requirements, and is metered and mixed for use on site; steel slag refers to the tailings of converter steel slag that has been stabilized and passed through a 4.75mm square-mesh sieve; the compound is a powder material made of ground slag, dihydrate gypsum, and portland cement clinker in a certain proportion.

Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Composition and requirements of raw materials
5 Strength grades
6 Technical requirements
7 Test methods
8 Inspection rules
9 Packaging, marking, transportation and storage
Annex A (Normative) Inspection methods for water requirement of normal consistency and setting time of steel slag composite material
Annex B (Normative) Test methods for boiling stability and autoclaved stability of steel slag composite material
Annex C (Normative) Inspection method for the strength of steel slag composite material mortars
Annex D (Informative) Preparation examples of steel slag composite material concrete