Blast furnace slag is used in the production of cement (iron Portland and blast furnace cement), bricks, pumice, lime ... Due to the low iron content it can be safely used in the manufacture of cement.
Concrete (HPC), in this case, ground granulated blast furnace The constituents of conventional concrete are cement, slag (GGBFS). GGBFS is a waste product in the manufacture of coarse aggregate, fine aggregate and water.
Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties.
Although the principal use of GBFS is in the manufacture of slag blended cement and Ground Granulated Blast Furnace . Slag, it can be used as lightweight aggregate where its high fire resistance and insulation properties make it an excellent aggregate for concrete and masonry units where high fire resistance is required.
Intermediate aggregate in portland cement concrete pavements Description: An intermediate sized coarse aggregate, produced by crushing and screening air-cooled iron Blast Furnace Slag. A light brown to gray crystalline aggregate, formed simultaneously with the production of iron in a blast furnace.
Slag Cement Benefits and Use in 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.
The ground granulated blast furnace slag (GGBFS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree ...
Slag : Ground granulated blast furnace slag (GGBS) GGBS is primarily a latent hydraulic binder used as a type 2 addition to cement which produces Portland blastfurnace cement (6-35% of GGBS) or blastfurnace cement (36-90% GGBS) which is produced primarily by blending at the concrete mixer but can also be used to produce factory blends generally at the cement factory.
According to the Slag Cement Association, some of the quantitative benefits of using slag cement or ground granulated blast furnace slag in concrete include improved workability and finishability, higher compressive and flexural strengths, improved resistance to aggressive chemicals, improved durability and reduced life cycle costs.
Laboratory and field studies were conducted on blast-furnace slag aggregates to establish nationwide material standards and recommended practices. Absorption of air-cooled blast-furnace slag kept in water was 2 to 9 times that of natural gravel, while that under …
Ground granulated blast furnace slag (GGBS) has been used in composite cements and as a cementitious component of concrete for many years. The first industrial commercial use (about 1859) was the production of bricks using unground granulated blast furnace slag (GBS).
⅜ X #4 Blast Furnace Slag is produced to commercial requirements. Usage Guide: The 3/8 x #4 Blast Furnace Slag should be blended into the hot mix asphalt mixture along with other coarse and fine aggregates, asphalt cement and any other special additives in the proportions detailed in …
Use of Blast Furnace Slag Aggregate in Concrete K.G. Hiraskar and Chetan Patil Abstract-The Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cement.
Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag…
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). The term slag cement will be used throughout this paper when referring to finely-ground granulated blast-furnace slag.
The aggregate content of concretes made with slag was often lower than a comparable concrete made without slag due to the lower density of the slag relative to portland cement when slag cement was used as a replacement on an equal mass basis, rather than on an equal volume basis.
Recycled aggregates, such as ceramic, brick, and marble wastes, in the blast furnace slag concrete have been investigated in the limited number of studies to date. In the literature, use of these wastes in the concrete produced by blast furnace slag, as replacement materials in cement have not found adequate attention.
Concrete In concrete, processed steel and blast furnace slag provide a sustainable alternative to primary aggregates in the production of lightweight or dense ready-mixed concrete. Blast furnace slag can also be used to make Ground Granulated Blast-furnace Slag (GGBS) which is used as a cement replacement in concrete.
Slag Paving Jobs Highway 1.4 km section of the Lincoln Alexander Freeway (1997) ... Cement manufacturing raw material Agriculture/soil amendment Fill Roof aggregate Railroad ballast Glass manufacture Gabions/rip rap Environmental applications - filter media Pelletized Blast Furnace Slag Concrete masonry Lightweight concrete Lightweight fill ...
Blast furnace slag products have been used successfully in virtually all phases of bridge construction. Projects such as the bridge pictured here can utilize blast furnace slag as a concrete aggregate. Blast furnace slag has been utilized in concrete masonry for many years.
Slag cement, or ground granulated blast-furnace slag (GGBFS), has been used in concrete projects in the United States for over a century. Earlier usage of slag cement in Europe and elsewhere demonstrates that long-term performance is enhanced in many ways.
1. Ground Granulated Blast Furnace Slag Ground Granulated Blast Furnace Slag (GGBFS) is a by product of the steel industry. Blast furnace slag is defined as "the non-metallic product consisting essentially of calcium silicates and other bases that is developed in a molten condition simultaneously with iron in a blast furnace."
about $110 for some GGBFS. Air-cooled iron slag and steel slag are used primarily as aggregates in concrete (air-cooled iron slag only), asphaltic paving, fill, and road bases; both slag types also can be used as a feed for cement kilns. Almost all GGBFS is used as a partial substitute for portland cement in concrete mixes or in blended cements.
Coarse aggregate consists of either (or a combination of) gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed concrete, with particles generally larger than 0.2 inches. The maximum size of the coarse aggregates is generally in the range of 3/8 to 1 ½ inches.
aggregates in concrete. Blast furnace slag is a co-product in the manufacture of iron and is thus considered a recovered resource material. Ground Granulated Blast Furnace Slag, or GGBFS, the ground form of granulated blast furnace slag (GBFS), is used as a supplementary cementitious material (SCM) replacing Portland Cement in concrete. Being a
Although blast furnace slag contains a small component of elemental sulfur (1 to 2 percent), the leachate tends to be slightly alkaline and does not present a corrosion risk to steel in pilings (10) or to steel embedded in concrete made with blast furnace slag cement or aggregates. (11)
The rapid cooling of molten slag by large quantities of water produces sand-like granule aggregate. Primarily ground into a cement replacement known as ground granulated blast furnace slag (GGBS) this is used in ready-mixed and precast concrete and masonry, floor levelling compounds and high temperature resistant building products.
Use of Cement Kiln Dust, Blast Furnace Slag and Marble Sludge in the Manufacture of Sustainable Artificial Aggregates by Means of Cold Bonding Pelletization Synthetic Dress Materials in Bangalore - Manufacturers …
Blast furnace slag is allowed to slowly cool by ambient air, is processed through a screening and crushing plant and is processed into many sizes for use primarily as a construction aggregate. Common uses are as aggregates in ready-mix concrete, precast concrete, hot mix asphalt aggregate, septic drain fields and pipe backfill.
Two major uses of GGBS are in the production of quality-improved slag cement, namely Portland Blastfurnace cement (PBFC) and high-slag blast-furnace cement (HSBFC), with GGBS content ranging typically from 30 to 70%; and in the production of ready-mixed or site-batched durable concrete.