Standard No.:	GB/T 28294-2012
English Name:	Steel slag composite material
Chinese Name:	钢渣复合料
Chinese Classification:	H54    Other steel and iron products
Professional Classification:	GB    National Standard
ICS Classification:	77.140.99 77.140.99    Other iron and steel products 77.140.99
Issued by:	AQSIQ;SAC
Issued on:	2012-5-11
Implemented on:	2013-2-1
Status:	to be abolished
Superseded by:	GB/T 28294-2024 Iron and steel slag composite materials
Superseded on:	2025-1-1
Abolished on:	2025-01-01
Language:	English
File Format:	PDF
Word Count:	9000 words
Price(USD):	270.0
Delivery:	via email in 1 business day

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