Crushed Steel Slag (OH, EAF or BOF) , (GS) consisting of glassy, granular materials formed when molten blast furnace slag or electric-furnace slag is rapidly chilled, as by immersion in water The Department may reject material containing mill waste, cinders, .
Air-cooled blast-furnace slag: The material resulting from the solidification of molten blast-furnace slag under atmospheric conditions Subsequent cooling may be accelerated by application of water to the solidified surface (This material can be mined and crushed for use as aggregate in concrete or fill materi- al, but is not cementitious .
blast furnace slag and steel slag are crushed products, and have angular, roughly cubical particle shape with pitted vesic-ular surfac Durability: All types of slag are highly resistant to weathering action such as freezing and thawing Sulfate soundness losses (ASTM C 83) are excep-tionally low for both the air-cooled blast furnace slags
WO2014013199A1 - Binder made of blast-furnace slag ,
The present invention describes a binder for construction materials, which includes at least: a granulated, crushed blast-furnace slag; and at least one monovalent, divalent or trivalent metal salt selected from among the salts of bismuth, copper, silver or tin, the salt being capable, when mixed with said slag, of forming a metal sulphide in which the solubility product K SP measured at 25 .
Mixtures of sand and crushed gravel, crushed rock, blast furnace slag or nickel slag, reclaimed Portland cement concrete, reclaimed asphalt pavement (RAP), crushed post-consumer glass, and/or crushed ceramic material, produced within specified gradation bands, 100 per cent passing by mass through the 19 mm (3/4 inch) sieve Used for
Ground Granulated Blast Furnace Slag - an overview ,
While substitution of ground granulated blast-furnace slag for up to 70% of the portland cement in a mix has been used, there appears to be an optimum substitution percentage that produces the greatest 28-day strength This is typically 50% of the total cementitious material but depends on the grade of ground granulated blast-furnace slag used
blast furnace slag and wet-bottom slag are all fine aggregat COARSE AGGREGATE Coarse aggregate is defined as aggregate that has a minimum of 20 percent retained on the No 4 sieve Crushed stone, crushed or uncrushed gravel, and crushed blast-furnace and steel slag ,
Effects of Ground Granulated Blast Furnace Slag in ,
Slag cement is often referred to as “ground granulated blast-furnace slag” (GGBFS) As requested in 2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Committee 233, 2004)
Blast Furnace Slag - Material Description - User ,
Air-Cooled Blast Furnace Slag If the liquid slag is poured into beds and slowly cooled under ambient conditions, a crystalline structure is formed, and a hard, lump slag is produced, which can subsequently be crushed and screened Expanded or Foamed Blast Furnace Slag
Jan 10, 2014· Slags are one of the most natural products of all Slags are principally divided into blast furnace slag and metallurgical slag At voestalpine the slags resulting from the steelmaking process are separated into blast furnace and metallurgical slags and then recycled The separated slags are processed into valuable products
51 Introduction: blast furnace slag and steel furnace ,
Blast furnace slag (BFS) and steel furnace slag (SFS) have a long history of use as industrial by-products, going back almost 100 years in the United States and 150 years in Europe Ground granulated blast furnace slag (GGBS) has been used in composite cements and as a cementitious component of concrete for many years
Influence of crushed granulated blast furnace slag and ,
The effects of adding a new hydraulic binder composed with Crushed Granulated Blast Furnace Slag (CGBS) and Calcined Eggshell Waste (CES) on the mechanical behaviour of marl was studied in order to propose a cheaper method than the classical treatment by lime or cement to reuse the low potential materials in road construction
Blast Furnace Slag - Material Description ORIGIN In the production of iron, iron ore, iron scrap, and fluxes (limestone and/or dolomite) are charged into a blast furnace along with coke for fuel The coke is combusted to produce carbon monoxide, which reduces the iron ore to a molten iron product
Blast Furnace Slag as a Concrete Aggregate MF 163-8 A G Timms NATIONAL SLAG ASSOCIATION nationalslagassocorg Page 2 BLAST FURNACE SLAG AS A CONCRETE AGGREGATE PART I – PROPERTIES OF BLAST FURNACE SLAG Our natural aggregates, such as stone and gravel of suitable quality for concrete making, are rapidly becoming depleted in many localiti
a guide to the use of iron and steel slag in roads - ASA
examine the use of crushed iron blast furnace slag as a roadbaseThese trials, conducted at Prospect, NSW, led to the publishing of a Research Report NoARRB 170 by the Australian Road Research Board (Kadar & Walter 1989) This report says in part “The experiments , use of iron and steel slag in roads Australasian | Slag | Association .
The largest-volume of recycled material used as construction aggregate is blast furnace and steel furnace slag Blast furnace slag is either air-cooled (slow cooling in the open) or granulated (formed by quenching molten slag in water to form sand-sized glass-like particles)
Blast Furnace operation: HOW A BLAST FURNACE WORKS
Aug 04, 2011· The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal" The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom
Slag, crushed 1/4 inch volume to weight conversion - AquaCalc
Slag, crushed 1/4 inch weighs 1185 gram per cubic centimeter or 1 185 kilogram per cubic meter, ie density of slag, crushed 1/4 inch is equal to 1 185 kg/m³ In Imperial or US customary measurement system, the density is equal to 7398 pound per cubic foot [lb/ft³], .
Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnaceWhen the metallurgical smelting process is complete, the lime in the flux has been chemically combined with the aluminates and silicates of the ore and coke ash to form a non-metallic product called blast furnace slag
When air-cooled blast furnace slag, nickel slag, and RAP containing steel slag aggregates are used, site-specific notification shall be given by the Contractor to the Ontario Ministry of the Environment (MOE) Glass and ceramic material shall be processed to remove all deleterious organic materials
Iron and Steel Slag Market To Reach US$29896 Bn By 2025 ,
Iron and Steel Slag Market (Process - Blast Furnace Slag (Granulated Blast Furnace Slag and Air Cooled Blast Furnace Slag) and Steelmaking Slag (Converter Slag and Electric Arc Furnace Slag); Application - Building and Construction, Railways, and Fertilizers) - Global Industry Analysis, Size, Share, Growth, Trends, and Forecast 2017 - 2025
5 Aggregate Specifications and Requirements - ingov
Air cooled blast furnace slag fine aggregate 26 Granulated blast furnace slag fine aggregate 21 Steel furnace slag, both fine and coarse 32 Gravel Coarse Aggregates There is a specific requirement for gravel coarse aggregates regarding crushed particl
Technical Note TN 009 Steel Furnace Slag Aggregate VicRoads Pavement Construction SFS aggregate can be used as a pavement material The crushed SFS can be used as is, or blended with other materials (eg granulated blast furnace slag, flyash, or insitu granular materials) to produce a material similar to crushed rock
Slag : Air-cooled blast furnace slag (ABS) What is ABS? ABS is a crystalline by-product produced by the solidification of molten blastfurnace slag Production and Processing Iron production is via a continuous batch process with the iron and slag produced in ,
Aggregates for Concrete - Department of Civil Engineering
Crushed stone is produced by crushing quarry rock, boul-ders, cobbles, or large-size gravel Crushed air-cooled blast-furnace slag is also used as fine or coarse aggregate The aggregates are usually washed and graded at the pit or plant Some variation in the type, quality, cleanli-ness, grading, moisture content, and other properties is expected
of natural aggregate, blast furnace slag, crushed concrete, or reclaimed asphalt pavement with particle sizes no greater than 2 inches and no visible organic or foreign matter Manufactured Fine Aggregate One hundred percent crushed rock, gravel, iron blast furnace slag, reverberatory furnace slag, steel furnace slag, or portland cement concrete
35 Characteristics of steelmaking slags | Global CCS ,
The slag issues from the furnace as a molten stream at 1400–1600 °C If this is allowed to cool slowly, it solidifies to a grey, crystalline, stone-like material known as air-cooled slag This product is then crushed and screened to sizes suitable as coarse aggregate Granulated blast furnace slag or slag sand is the product of rapid .
Air-cooled blast-furnace slag: The material resulting from the solidification of molten blast-furnace slag under atmospheric conditions Subsequent cooling may be accelerated by application of water to the solidified surface (This material can be mined and crushed for use as aggregates in concrete or fill material; it is not cementitious)
Use of Recycled Aggregates in Construction - ccaaau
21 Foamed Blast Furnace Slag (FBS) Description Foamed blast furnace slag (FBS) is a by-product of iron slag produced in a similar way to granulated blast-furnace slag but with a controlled amount of water, applied to the molten slag to trap the steam in the mass, giving a porous, pumice-like product This
SLAG - IRON AND STEEL THM : Tonne Hot Metal Blast Furnace Slag In the blast furnace, the slag floating over molten pig iron (hot metal) is flushed out in slag pot and then sent to slag granulating plant or to cooling pits Depending upon the cooling process, three types of slags are generated, namely, air-cooled slag, granulated slag and .