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 …
Slag cement, or ground granulated blast furnace slag (GGBFS), has been incorporated into concrete projects in the U.S. for over a century to improve durability and reduce life cycle costs. Among its measurable benefits in concrete are better workability and finishability, higher compressive and flexural strengths, and improved resistance to ...
Both blast furnace slag cement and air-cooled blast furnace slag aggregate have particular properties that can improve the performance of concrete. The use of these products can conserve our natural resources. Now and in the future, the specifiers and producers of concrete must look to the use of materials such ...
Portland Blast-furnace Slag Cement. A Portland cement mixed with a designated amount of ground granulated blast-furnace slag. The latent hydraulic property of the blast-furnace slag gives excellent long-term strength. Properties Significant chemoresistance, and Suppression of alkali-aggregate reaction (type B and C). Applications
infrastructures Article Properties of Blast-Furnace Slag Cement Concrete Subjected to Accelerated Curing † Bernard A. Zulu 1, *, Shingo Miyazawa 2 and Nobukazu Nito 3 1 Graduate School of Engineering, Ashikaga University, Ashikaga 326 8558, Japan 2 Department of Civil Engineering, Ashikaga University, Ashikaga 326 8558, Japan; [email protected] 3 Technical Center, DC …
Apr 23, 2017· Blast-furnace slag is used in making-four classes of cement— Puzzolan, or ordinary slag cement, usually simply called slag cement. Slag Portland cement, which may be a true Portland cement. Iron cement or Eisen cement, which is a mixture of slag and ordinary Portland cement. Several special varieties of cement. Slag Cement
Ground Granulated Blast Furnace Slag Blast Furnace Slag is a by product obtained in the manufacturing of Pig iron in the Blast furnace and is formed by the combination of earthy constituents of iron ore with lime stone flux. Quenching process of molten slag by water is converting it into a fine, granulated slag of whitish color.
The use of blast furnace slag aggregates in concrete by replacing natural aggregates is a most promising concept because its impact strength is more than the natural aggregate. Steel slag aggregates are already being used as aggregates in asphalt paving road mixes due to their mechanical strength, stiffness, porosity, wear resistance and water ...
A study was conducted using Ground-Granulated Blast-Furnace Slag (GGBFS) as a partial replacement material for fine aggregates. Test results showed that the compressive strength of the concrete increases and the optimum value was found at a slag replacement proportion of 30% of fine aggregate and after that any further replacement of slag decreases the compressive strength.
BLAST FURNACE SLAG USAGE AND GUIDANCE FOR INDIANA Introduction INDOT permits the use of air cooled blast furnace slag (ACBFS) as a conventional aggregate. The material can be used in granular base, hot mix asphalt, Portland cement concrete, embankments, and fill applications. ACBFS has been used in unbound applica-
Ground granulated blast furnace slag (GGBFS) is designated in ASTM C 989 and consists mainly of silicates and aluminosilicates of calcium. GGBFS is divided into three classifications based on its activity index. Grade 80 has a low activity index and is used primarily in mass structures because it generates less heat than portland cement.
ground granulated blast furnace slag (GGBS) and unground blast furnace slag (GBS) as a partial replacement for cement for the production of concrete. A total of 14 concrete mixes were prepared under a design density of 1,300 kg/m3, two different filler-to-binder ratios, and cement replacement levels of 30–70% of the
Feb 15, 2016· Blast furnace slag is produced in a blast furnace concurrently with Fe. Fig. 1 schematically represents obtaining the blast furnace slag from the iron ore. Iron oxides are reduced to igneous Fe in the furnace by adding a flux such as limestone or dolomite and a fuel and with a reducing agent such as coke .The igneous slag indwells on the pig iron and its temperature is close to that of …
SLAG Ground granulated blast-furnace slag (Fig. 3-5), also called slag cement, is made from iron blast-furnace slag; it is a nonmetallic hydraulic cement consisting essentially of sili-cates and aluminosilicates of calcium developed in a molten condition simultaneously with iron in a blast furnace. The molten slag at a temperature of about 1500°C
According to the results, optimum dosages of the puzzolans were found 20% for grounded blast furnace slag, 10% for natural zeolite and %20 for concrete mortar containing both 10% grounded blast ...
Aug 26, 2018· Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of portland cement. It is a recovered industrial by-product of an iron blast furnace. Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that…
Study on The Thermal Properties of Concrete Containing Ground Granulated Blast Furnace Slag, Fly Ash and Steel Reinforcement Bekir Erdem Bas In this study, the thermal and mechanical properties of two types of concrete were measured. The first type contained ground granulated blast furnace slag, and the second type contained Class F fly ash.
May 09, 2018· Ground Granulated Blast Furnace Slag (GGBS) The importance of Ground Granulated Blast Furnace Slag (GGBS) lies in its greener way to become a substitute in concrete material. GGBS being a waste material, it needs proper method for disposal. So incorporating this waste material in concrete can reduce the depletion of conventional concrete components such as cement, fine …
Apr 28, 2016· Use of blast-furnace slag's as • Sand and gravel for the construction of road beds, • Basic filler in asphalt–concrete mixtures for the construction of road and airport coatings, • Unroasted cement (binder) for reinforcing roadways and • Preparing slow-setting concrete. Use of Blast Furnace Slag in Road Construction. 23.
Ground Granulated Blast Furnace Slag (GGBS) GGBS, being the by-product from blast furnace, contains cementitious properties. To develop ultra high-performance concrete, higher cement content (>600kg/m3) is required, which in turn, results in higher heat of hydration.
Jul 01, 2021· The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. Various types of slag are produced: - Blast-furnace slag—The nonmetallic product, consisting essentially of silicates and aluminosilicates of calcium and of other bases, that is developed in a molten condition simultaneously with iron in a blast furnace.
Int. J. Adv. Sci. Eng. Vol.5 879-885 (2018) 879 E-ISSN: 2349 5359; P-ISSN: 2454-9967 Granulated Blast-Furnace Slag (GGBS) based Geopolymer Concrete - Review Shabarish V. Patil1, Veeresh B. Karikatti1, Manojkumar Chitawadagi2 1Department of Civil Engineering, KLE Institute of Technology, Hubballi,opposite to Airport, Gokul Road, Hubballi – 580 030, Karnataka 2School of Civil and ...
Slag cement, originally known as granulated blast-furnace slag, begins with the production of iron. The heart of the process is the blast furnace that refines iron ore into iron. The ingredients are heated to nearly 1500 degrees Centigrade to form two components: iron and molten slag. The iron is used to produce steel, and the molten slag is ...
Blast Furnace Slag (BFS) cement is the combination of Ordinary Portland Cement (OPC) and fine Granulated Blast Furnace Slag (GBFS) gained as a byproduct in the steel making manufacturer with below 70% to that of cement. Ground Granulated Blast Furnace Slag (GGBFS) is a fine glassy granule which encompasses cementitious possessions.
GGBS cement should conform to the requirements of BS EN 15167 or ASTM C989 in the US. GGBS cement is similar in composition to Portland cement. When mixed with Portland cement this forms Portland Slag Cement or Blast-Furnace Cement, depending on the proportions. See below for composition details of GGBS concrete.
Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of portland cement. It is a recovered industrial by-product of an iron blast furnace.
Oct 07, 2019· There are two major uses of Ground granulated blast furnace slag, In the production of high quality-improved slag cement, such as Portland Blast furnace cement (PBFC) and high slag blast furnace cement (HSBFC). In such cements GGBS content ranges typically from 30 to 70%. In the production of ready-mixed concrete or site-batched durable concrete.
