IRON BLAST FURNACE SLAG CONCRETE AGGREGATES I. Rock slag can be crushed and screened to a full range of aggregate sizes. It is important that slag aggregate should not be simply substituted for another aggregate in an existing concrete mix without considering differences in .
cement paste thus reducing the availability of one of the compounds that are highly susceptible to sulfate attack10. Figure 2 shows compressive strengths of mortars cured in A Guide to the Use of Iron Blast Furnace Slag in Cement and Concrete ASA Data Sheet 3 3 Figure 1: Chloride Ion Penetration after Immersion in Seawater for 3 Years.
Use of Cement Kiln Dust, Blast Furnace Slag and Marble Sludge in the Manufacture of Sustainable Artificial Aggregates by Means of Cold Bonding Pelletization Francesco Colangelo * and Raffaele Cioffi Department of Technology, University of Naples ―Parthenope‖, Centro Direzionale, Is. C4, Napoli 80143, Italy; EMail: rcioffi
May 06, 2016· 0% cement concrete MR geopolymer concrete a South African first!! ... Learn about Blast Furnace Duration: ... Steel Slag aggregate for Road Construction Projects Harsco Slovenia .
Iron Blast Furnace Slag Aggregate for Concrete" in 1977 and fine BF slag aggregate as JIS A 5012 "Water Granulated Iron Blast Furnace Slag Aggregate for Concrete" in 1981. Thereafter, the two were unified as JIS A 50111 "Slag Aggregate for Concrete, Part 1 Blast Furnace Slag Aggregate". Then, in 1983, the Japan Society of Civil
The BlastFurnace slag is a byproduct of the iron manufacturing industry. Iron ore, coke and limestone are fed into the furnace and the resulting molten slag floats above the molten iron at a temperature of about 1500 0C to 1600 0C.
May 09, 2018· Ground Granulated Blast Furnace Slag concrete. But percentages of 20 to 80 are commonly used. Greater the percentage of GGBS, greater will be the effect of GGBS in concrete. The concrete made with Ground Granulated Blast Furnace Slag cement sets more slowly compared to ordinary Portland cement concrete based on the amount of GGBS in the cementations material.
Intended Use of Product: Ground granulated blast furnace slag is used as an additive with portland cement in combination with water and aggregates to form concrete. Granulated blast furnace slag is used as a component in portland cement manufacture. It is also used as a component of other building and construction materials.
The efficiency, which the molten blast furnace slag is rapidly chilled, as well as the chemical composition of the slag source, largely determines its cementitious properties for use in concrete. After the granulated blast furnace slag is formed, it must be dewatered, dried and ground, using processes similar to those used with Portland cement clinker to make Portland cement.
It has long been established by law and custom in most countries that a cement made from blastfurnace slag and limestone so as to comply with standard requirements of method of manufacture, chemical composition, fineness, strength, soundness, specific gravity, c., is legitimately a Portland cement, and may be sold as such.
Hydraulic cement concretes were produced using pozzolans and ground, granulated, blastfurnace slag (slag) to investigate the effect of these materials on durability. The pozzolans used were an ASTM C 618 Class F fly ash with a low lime content and a dry, densified silica fume. The slag was an ASTM C 989 Grade 120 material.
Feb 06, 2019· Thank you, Mr. Deshmukh, that is some fantastic information on how blast furnace slag is derived! Slag is a fantastic environmental reusable byproduct that is being used moreandmore here in the United States as both a replacement for lowergraded aggregate uses (like embankment fills, retaining wall backfill or roadway shoulders) as well as a cement replacement.
of blast furnace slag as aggregates in concrete, while there is not such a standard for steel slag. In this order, the current study is focused on assessment of steel slag properties to be applied as aggregate in concrete, which has been carried out by concentrating on Khuzestan Steel Company (KSC) EAFS, which
Jul 03, 2015· Keywords. The replacement of 30% cement by GGBS leads to decrease in water absorption up to %, chloride ion permeability by % and pH value by %. The replacement of 100% of fine aggregate by copper slag decreases water absorption by %, chloride ion permeability up to % and pH value by
Blast Furnace Slag as a Concrete Aggregate MF 1638 A. G. Timms NATIONAL SLAG ASSOCIATION 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 localities.
The concrete contained a normal total cementitious content of 390kg/m and had different levels of ground granulated blast furnace slag in the range 0, 30, 50 and 70% by weight as replacement material for portland cement. Some of the concretes were prepared using gravel and others with crushed limestone as aggregate.
It is fully called as Groundgranulated blastfurnace slag (GGBS or GGBFS) and is obtained by quenching molten iron slag (a byproduct of iron and steelmaking) from a blast furnace in water or steam, to produce a glassy, granular product that is ...
Construction aggregate, or simply "aggregate", is a broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world. Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as .
Concretes containing ground granulated iron blastfurnace slag as a Portland cement replacement exhibit properties not unlike those containing Portland cement alone. With the exception of early age strength, most properties are enhanced by the replacement of cement with milled slag.
3. Reeves CM, "The Use of Ground Granulated Blastfurnace Slag to Produce Durable Concrete", How to Make Today's Concrete Durable for Tomorrow, Thomas Telford, London, May 1985. 4. Douglas E and Zebino R, "Characterisation of Granulated and Pelletized Blastfurnace Slag", Cement and Concrete Research, Vol 16, 1986. 5.
of alccofine 10% constant to total weight of cement and blast furnace slag used in various proportions 20%, 30% and 40% in partial replacement of fine aggregate .The mix proportions of concrete had a constant water binder ratio of and superplasticizer was added based on .
Because of the hard and dense property, aircooled slag is utilized in road bases, asphalt paving or as concrete aggregate, etc. Among these three kinds of slag, GGBFS is the most valuable one in cement industry. Due to its cementitious properties mixing with lime, alkalis or Portland cement, GGBFS is often used to make blastfurnace slag cement.