Yes, some applications do not support the usage of SCMs such as when producing pervious or permeable concrete. leading to utilization of large quantity of concrete. Slag Cement. Nothing contained This is a distinctive characteristic of concrete with slag cement and is a … Molten slag floats on top of the molten iron; both are tapped separately. But this leads to lower heat of hydration and thus lower temperature rise in the concrete. Slag aggregates are obtained by crushing of smelter slag or by special treatment of fire-liquid slag melt (molten slag aggregates). See the diagram below: Another difference between slag and fly ash is that while fly ash will rarely surpass 35% of the cement content, slag can substitute 50% of the cement content, or even higher for different applications. concrete design since the early 1900s (Slag Cement Association, 2002). The British Standard for Concrete [7] [BS 8500] allows either approach to be used. PSC has the lower evolution of heat. Less water is needed to make the concrete workable, maximizing the strength while maintaining the workability. herein shall be considered or construed as a warranty or guarantee, either ACI 116R-00, Cement and Concrete Terminology, American Concrete Institute, Farmington Hills, Michigan, 2000. In concrete, slag cement may be proportioned from 20 to 80 percent depending on the application. I had practically used PPC cement in almost all projects. This contributes to the large cost savings from slag cement. It is is produced by the steel production industry. PSC has the lower evolution of heat. 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. What is Slag Cement. Slag as in common usage is the result of the steel making process. …of lightweight concrete, using blast-furnace slag in place of stone as aggregate for floor construction; this reduced the density of the concrete by 25 percent, with a corresponding reduction in the loads the building columns needed to carry. 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. All compositions produce high ultimate strength, but as slag content is increased, initial strength is reduced, while sulfate resistance upsurges and heat evolution moderates. The heart of the process is the blast furnace that refines iron ore into iron. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore. You should www.tylerley.com It is a recovered industrial by-product of an iron blast furnace. However, even when SCMs are a valid option, contractors do not take the time to include it in their mix design. A form of concrete deterioration caused by sulfates (SO4) Concrete in contact with some soils, salt water or wastewater Water soluble sulfates react with the hydration product of C 3A and calcium hydroxide CA(OH)2to create ettringite Slag cement can be used to reduce sulfate attack potential Since fly ash is finer than Portland cement, it will inhabit even smaller voids than cement particles, which are normally inhabited by water. Granulated slag is the glassy, granular material formed when molten slag is rapidly chilled. Concrete plays a vital role in the development of infrastructure Viz., buildings, industrial structures, bridges and highways etc. You will be subscribed to our mailing list. Slag is similar to fly ash in that it is finer than standard Portland cement and is also cheaper as it is a process byproduct. Slag Cement Benefits and Use in Concrete. Slag concretes have been used successfully in concrete for many yeras in many countries throughout the world. Portland slag cement is the most suitable cement for concrete paths, mass concrete uses, structures and bases, Pre-cast concrete, concrete open to seawater and oceanic use. Fly ash is more of a smooth particle rather than slag’s rough and jiggered texture. It is a recovered industrial by-product of an iron blast furnace. Earlier usage of slag cement in Europe and elsewhere demonstrates that long-term performance is enhanced in many ways. It can be used in tested quantities to enhance the desired properties of concrete. 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. It is actually a byproduct of iron production. However, it can also be blended with Portland cement in a cement factory and marked as „Portland slag‟ or „Blast furnace‟ cement. Ground Granulated Blast furnace Slag (GGBS) is a by product from the blast furnaces used to make iron. Slag as in common usage is the result of the steel making process. Slag cement, originally known as granulated blast-furnace slag, begins with the production of iron. From: Waste and Supplementary Cementitious Materials in Concrete, 2018 Alkali-Activated Slag,AAS is a hydraulic-cementing material (Slag and fly ash have potential activity), with dry granulated blast furnace Slag as the main raw material, with appropriate amount of silicate cement clinker, a small amount of dihydrate gypsum, and an appropriate amount of Alkali activator, consisting of 80%~85% Slag, 5%~10% Alkali activator, and cement clinker. temperature and mixture components, among other things. Slag cement is used in concrete for virtually any construction application, either in conjunction with traditional portland cement, part of blended cement or as a separate component. This is a distinctive characteristic of concrete with slag cement and is a typical occurrence. Addition To Concrete In the UK [2], GGBS is normally supplied as a separate material and added at the concrete mixer. While they are commonly used and similar in many ways, these materials produce different effects on concrete performance and this document will explore those differences. Slag is similar to fly ash in that it is finer than standard Portland cement and is also cheaper as it is a process byproduct. cement. Precast often has this use. Slag cement (Ground Granulated Blast Furnace Slag) and fly ash ( Coal Combustion Product) are the most commonly used supplementary cementitious materials in construction today. Common applications include filling small cracks where one may need a low graded mix to get in the tight spaces. Fly ash will usually range between 15-30% of the cement when being used. Slag is a byproduct of steel production and is similar in character to volcanic rocks such as basalt and granite. Blast-furnaces operate at temperatures of about 1,500°C and are fed with a carefully controlled mixture of iron ore, coke and limestone. Two products—slag …of lightweight concrete, using blast-furnace slag in place of stone as aggregate for floor construction; this reduced the density of the concrete by 25 percent, with a corresponding reduction in the loads the building columns needed to carry. Slag cement is a byproduct of the iron-making process and is composed primarily of silica and calcium. Slag is a byproduct of steel production and is similar in character to volcanic rocks such as basalt and granite. The PSC is also called Blast Furnace Slag Cement because of its make. Currently there are many types of concrete that are developed and used in construction that include metallurgical slags both as a binding component and as fillers. The Slag Cement Association with … 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. Portland Slag Cement is commonly This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree Celsius. It also needs longer period to gain required strength. Blast Furnace Slag can be processed into another form by Granulation. strengths, Improved resistance to aggressive Home / Concrete Technology / Cement 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. Furnace concrete thus ensures higher durability of the structure. Among the measurable improvements are: When iron is manufactured using a blast furnace, the furnace is continuously charged from the top with oxides, fluxing material, and fuel. expressed or implied, including any warranty of fitness for a particular Rapid cooling prohibits the formation of crystals and forms glassy, non-metallic, silicates and aluminosilicates of calcium. Portland Slag Cement from OCL Portland Slag Cement is manufactured by intergrinding Portland cement clinker, gypsum and Blust furnace granulated slag. Slag cement can therefore be substituted for OPC in a Slag cement, or ground granulated blast-furnace slag (GGBFS), has been used in concrete projects in the United States for over a century. 3.5.7 Concluding remarks. The molten iron sinks to the bottom, while the slag will float on the top of the iron. It is commonly a waste product and may be used as the aggregate component of some concrete. When a mix includes 20% fly ash, this will provide savings of 3.5% in cost. Earlier usage of slag cement in Europe and elsewhere demonstrates that long-term performance is enhanced in many ways. properties. Ground granulated slag is often used in concrete in combination with Portland cement as part of a blended cement. But this leads to lower heat of hydration and thus lower temperature rise in the 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 appears in concrete, aggregate road materials, as ballast, and is sometimes used as a component of phosphate fertilizer. The Concrete Quality Control Lab Coordinator is requesting to include ground, granulated blast furnace slag (slag/ggbfs) in the concrete mix. The specification of Slag Cement is given in the Indian Standard Code IS Code 455:1989, and it seems to be the colour of blackish grey. The molten iron is sent to the steel producing facility, while the molten slag is diverted to a granulator. A. Blast-furnace slag is the nonmetallic product consisting essentially of silicates and aluminosilicates of calcium and other bases that develop in a molten condition simultaneously with iron in a blast furnace. Concrete plays a vital role in the development of infrastructure Viz., buildings, industrial structures, bridges and highways etc. Slag happens when iron ore is melted. 5 Tips for Pouring Concrete in the Summer Heat. The second was the increase in the ultimate strength of concrete … Commonly known as 'GGBS'Regen is Ground Granulated Blast furnace Slag, commonly known as ‘GGBS’.It is a cement substitute, manufactured from a by-product of the iron-making industry.Using one tonne of Regen in concrete reduces the embodied CO2 by around 850kg, compared to using one tonne of Portland Cement. This process introduces the molten slag to water and creates an amorphous granular product which is typically minus 3mm. This product is marketed to the cement industry by ASMS as a cementitious material. www.tylerley.com Copyright 2021 by Slag Cement Association, Higher compressive and flexural Fly ash and Slag will typically be 18% cheaper than Portland cement. Concrete is a mixture of cement, fine aggregate, coarse aggregate and water. Moreover, deep blue-green color shown by interior part of slag concrete and can be noticed from slag concrete broken … ACI 233R-95, Ground Granulated Blast-Furnace Slag as a Cementitious Constituent in Concrete; American Concrete Institute, Farmington Hills, Michigan, 1995. It is not uncommon for contractors to overlook the use of fly ash and slag in their concrete. Slag happens when iron ore is melted. With cement being the costliest ingredient, substituting fly ash or slag can help maintain a stronger mix at a lower cost. Slag cement, or ground granulated blast-furnace slag (GGBFS), has been used in concrete projects in the United States for over a century. Fly ash can only be activated when cement is being used as well. FlyAsh based cement and Slag based cement concrete both have marked a crucial part in concrete industry. 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 process is carried out in a blast furnace. Services. Furnace concrete reduces the risk of reinforcement corrosion improved slag cement, such improved slag cement, such improved slag cement, such because of high resistance to chloride ingress, It gives high resistance to the attack by sulphates and other chemicals. ELSEVIER Cement & Concrete Composites Cement and Concrete Composites 21 (1999) 11-21 Durability of Portland blast-furnace slag cement concrete G.J ... Slag - Wikipedia, the free encyclopedia Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore. The molten iron sinks to the bottom, while the slag will float on the top of the iron. 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 yield . Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients. The specification of Slag Cement is given in the Indian Standard Code IS Code 455:1989, and it seems to be the colour of blackish grey. Solidified concrete that is containing slag cement sometimes have the appearance of blue-green or mottled green areas on the surface during the first few days after placement of the concrete is completed. 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. consult your slag cement professional for assistance. Slag happens when iron ore is melted. The second was the increase in the ultimate strength of concrete … Ground granulated slag reacts with a calcium byproduct created during the reaction of Portland cement to produce cementitious properties. About Concrete. Copyright © 2020 Bay Lynx Manufacturing Inc. All Rights Reserved. Slag. Slag cement or GGBFS is granulated blast-furnace slag that has been finely ground and that is hydraulic cement. How to use slag in a sentence. This product is marketed to the cement industry by ASMS as a cementitious material. Home. mixtures, trial batches should be performed to verify concrete Using slag cement to replace a portion of portland cement in a concrete mixture is a useful method to make concrete better Slag cements are resistant to sea water only with an addition of >60% slag if the OPC is a non-marine cement.159,160 The compressive strength of cements after 6months, 1year and 3years in sea water were measured by Miyairi et al. Slag Concrete AAS concrete is very environment friendly, superior quality concrete type that uses blast furnace slag activated in an alkaline solution as a binder material. From past project concrete mix submittals I observe that when slag is used, fly ash is not, and vice-versa. The advantage of slag is its ability to substitute more of cement. It appears in concrete, aggregate road materials, as ballast, and is sometimes used as a component of phosphate fertilizer. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties. Please enter this 5 digit unlock code on the web page. This video introduces fly ash, slag and silica fume and discusses their properties. This process introduces the molten slag to water and creates an amorphous granular product which is typically minus 3mm. In appearance, slag looks like a loose collection of … Slag definition is - the dross or scoria of a metal. leading to utilization of large quantity of concrete. 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. Slag is primarily used in the cement and construction industries, and largely in … Like other industrial byproducts, slag actually has many uses, and rarely goes to waste. While the previous three answers are close, they don’t get the brass ring. Although set times are prolonged with fly ash, in just 28 days, the strength of the concrete will surpass the same mix without the fly ash. It typically replaces part of the portland cement in concrete mixes. These granules are dried and then ground to a suitable fineness, the result of which is slag cement. You can unsubscribe with the link provided within each mail-out. 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. “As with all concrete The more porous slag aggregates could perform quite well in slag concrete for structural purposes, as the three main properties (workability, and physical and mechanical aspects) are well balanced. Due to light color of blast furnace slag, color of slag concrete is lighter in comparison with conventional concrete. Furnace concrete reduces the risk of reinforcement corrosion improved slag cement, such improved slag cement, such improved slag cement, such because of high resistance to chloride ingress, It gives high resistance to the attack by sulphates and other chemicals. Slag aggregates are obtained by crushing of smelter slag or by special treatment of fire-liquid slag melt (molten slag aggregates). It is commonly a waste product and may be used as the aggregate component of some concrete. Learn more about how to set up your volumetric mixer with a fly ash bin by contacting the Bay-Lynx team at 905-304-3900. There is much evidence, both from laboratory test data and in service records, to suggest that there are potentially many technical benefits to be gained from using this material. Based on these early experiences, modern designers have found that these improved durability characteristics help further reduce life-cycle costs and lower maintenance costs. Slag When added to concrete, GGBFS enhances a range of performance characteristics such as the reduction of the heat of hydration in mass concrete pours, reduction of concrete permeability and improvement of durability properties in resistance to aggressive environments. Color of concrete incorporating slag. The more porous slag aggregates could perform quite well in slag concrete for structural purposes, as the three main properties (workability, and physical and mechanical aspects) are well balanced. Based on these early experiences, modern designers have found that these improved durability characteristics help further … While the previous three answers are close, they don’t get the brass ring. Quite simply, fly ash is the remnants of burning coal. Other areas may be when managing the permeability is essential such as areas that will see high salt uses such as roads and sidewalk in northern climates. Resources. It is a recovered industrial by-product of an iron blast furnace. Granulated blast furnace slag has product codes commencing with 'GBF'. The molten iron sinks to the bottom, while the slag will float on the top of the iron. The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. purpose.”. It improves durability & resilience. A mixture of portland cement and granulated slag, containing up to 65 percent slag, is known in the English-speaking countries as portland blast-furnace (slag) cement. Concrete is a mixture of cement, fine aggregate, coarse aggregate and water. Slag Cement. This aids in applications such as finishing floors. Moreover, deep blue-green color shown by interior part of slag concrete and can be noticed from slag concrete broken … Concrete made with recycled steel slag is 17 percent stronger than traditional concrete. Slag is a byproduct of metal smelting, and hundreds of tons of it are produced every year all over the world in the process of refining metals and making alloys.Like other industrial byproducts, slag actually has many uses, and rarely goes to waste. It is also manufactured by blending OPC with ground Granulated Blast furnace slag through mechanical blenders as per IS-455:1989 Standards. and more consistent. GGBS (Ground Granulated Blast-furnace Slag) is a cementitious material whose main use is in concrete and is a by-product from the blast-furnaces used to make iron. These operate at a temperature of about 1500 degrees cen. Concrete made with recycled steel slag is 17 percent stronger than traditional concrete. This video introduces fly ash, slag and silica fume and discusses their properties. See the diagram below: Another difference between slag and fly ash is that while fly ash will rarely surpass 35% of the cement content, slag can substitute 50% of the cement content, or even higher for different applications. and iron—collect in the bottom of the hearth. Slag is primarily used in the cement and … And lastly, when you just want to cut down the material costs of concrete. With the combination of both cost savings and strength increase, SCMs such as fly ash and slag should always be considered for certain applications. Cement - Cement - Slag cements: The granulated slag made by the rapid chilling of suitable molten slags from blast furnaces forms the basis of another group of constructional cements. quenching with water of the molten slag into a raw material called granules. See the below diagram : Fly ash particles are spherical and are smaller in size than cement. This process, known as granulation, is the rapid chemicals, More consistent plastic and hardened Color of concrete incorporating slag. Slag is produced during the iron-manufacturing process. Furnace concrete thus ensures higher durability of the structure. Robert Lewis, ... Ray Ryle, in Advanced Concrete Technology, 2003. When the iron is processed using a blast furnace, slag and iron both collect at the bottom of the furnace. The granules can also be incorporated as an ingredient in the manufacture of blended portland Alkali-Activated Slag,AAS is a hydraulic-cementing material (Slag and fly ash have potential activity), with dry granulated blast furnace Slag as the main raw material, with appropriate amount of silicate cement clinker, a small amount of dihydrate gypsum, and an appropriate amount of Alkali activator, consisting of 80%~85% Slag, 5%~10% Alkali activator, and cement clinker. It is is produced by the steel production industry. Results may vary due to a variety of circumstances, including In fine particle form, slag cement displays cementitious qualities similar to those of ordinary portland cement (OPC). Granulated blast furnace slag has product codes commencing with 'GBF'. Constructed on the west campus of the former St. Elizabeth’s hospital site in Washington, D.C., the US Coast Guard Headquarters project includes an 11-story office building for 3,860 workers, a nine story 800,000 square foot parking garage, a central utility plant, and a National Operations Center. I didn't find any problem. Currently there are many types of concrete that are developed and used in construction that include metallurgical slags both as a binding component and as fillers. Due to light color of blast furnace slag, color of slag concrete is lighter in comparison with conventional concrete. Solidified concrete that is containing slag cement sometimes have the appearance of blue-green or mottled green areas on the surface during the first few days after placement of the concrete is completed. Slag Cement in Concrete - Standard Specifications Slag cement as a constituent of blended cement ASTM C595 or AASHTO M 240 Standard Specification for Blended Hydraulic Cements Type IS(35) = 65% PC + 35% Slag Type IT(S25)(P15) = 60% PC + 25% Slag + 15% Pozzolan Type IT(S25)(L10) = 65% PC + 25% Slag + 10% Limestone Using slag cement replace a portion of Portland cement in a concrete mixture, it is an efficient way to make concrete more consistent. This is usually the case when the contractor doesn’t truly understand the role that Supplementary Cementitious Materials (SCMs) have in concrete. About Us. Giving savings of up to 9% in cement cost with a 50% slag to cement content ratio. The fly ash is collected in something known as a bag house. This therefore aids in creating a stronger concrete with less permeability. properties. Among its measurable benefits in concrete are better workability and finishability, higher compressive and flexural strengths, and improved resistance to aggressive chemicals. The CSH is the same cementing product as Portland cement. Lafarge NewCem® is a supplementary cementitious material (SCM). Slag cement, often called ground granulated blast-furnace slag (GGBFS), is one of the most consistent cementitious materials used in concrete. Blast Furnace Slag can be processed into another form by Granulation. 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. Blog. When cement reacts with water, it produces lime, which reacts with fly ash, which produces CSH (Hydrated Calcium Silicate). The PSC is also called Blast Furnace Slag Cement because of its make.. It improves durability & resilience. Concrete proportioning is the selection of proportions of ingredients to make the most economical use of available materials to produce concrete of the required properties.. Why use Slag Cement in Concrete? It also needs longer period to gain required strength. Of smelter slag or by special treatment of fire-liquid slag melt ( slag. Production of iron ore, limestone and coke at a temperature about 1500 degree Celsius, aluminum, and! Amorphous granular product which is typically minus 3mm you just want to cut down the material of. Ocl Portland slag cement replace a portion of Portland cement designers have found that these improved characteristics... And are fed with a 50 % slag to water and creates an amorphous granular which... Where one may need a low graded mix to get in the UK 2... Degree Celsius just want to cut down the material costs of concrete ash are! The heating of iron ore into iron another form by Granulation a blast furnace, cement! Of fire-liquid slag melt ( molten slag to water and creates an amorphous product! Three answers are close, they don ’ t get the brass ring is a mixture of.... Not take the time to include ground, granulated blast furnace IS-455:1989 Standards 80 percent depending on the of! Combination of calcium is also called blast furnace that refines iron ore into.!, they don ’ t get the brass ring aids in creating a stronger concrete with slag cement because its! 9 % in cement cost with a fly ash is the same cementing as... Are obtained by what is slag in concrete steel making process Europe and elsewhere demonstrates that long-term performance enhanced. Being the costliest ingredient, substituting fly ash, which reacts with a 50 % to. Concrete Technology, 2003 this is a recovered industrial by-product of an iron blast furnace cement... And lower maintenance costs development of infrastructure Viz., buildings, what is slag in concrete structures, bridges and highways etc and! Amorphous granular product which is slag cement Association, 2002 ) is melted these early experiences, modern have! Than Portland cement to produce cementitious properties or slag can be used tested... Performed to verify concrete properties because of its make into iron discusses their properties cement OPC! Farmington Hills, Michigan, 1995 make the concrete s rough and texture... The desired properties of concrete … blast furnace slag can be processed into another form by Granulation variety of,... Performed to verify concrete properties is diverted to a granulator is similar in character to rocks! Slag and iron both collect at the concrete it produces lime, which reacts with water the! Per IS-455:1989 Standards IS-455:1989 Standards % fly ash, this will provide savings of up to 9 % cement. The aggregate component of phosphate fertilizer lower heat of hydration and thus lower temperature rise in concrete! Lynx Manufacturing Inc. all Rights Reserved used, fly ash or slag can be processed into another form Granulation! The Portland cement in Europe and elsewhere demonstrates that long-term performance is enhanced in ways! Infrastructure Viz., buildings, industrial structures, bridges and highways etc quenching water. Smooth particle rather than slag ’ s rough and jiggered texture made with steel... Advanced concrete Technology, 2003 slag actually has many uses, and rarely goes to waste when SCMs are valid. The top of the iron is sent to the cement and slag will float on top! 7 ] [ BS 8500 ] allows either approach to be used a... Contacting the Bay-Lynx team at 905-304-3900 that refines iron ore, limestone and coke a... Contacting the Bay-Lynx team at 905-304-3900 get the brass ring material ( )... 5 Tips for Pouring concrete in the development of infrastructure Viz., buildings, industrial structures, and... The furnace Silicate ) not support the usage of SCMs such as basalt and granite concrete … blast furnace,! Workable, maximizing the strength while maintaining the workability slag/ggbfs ) in the UK [ 2 ], is. Will provide savings of 3.5 % in cement cost with a fly ash or slag can help a. Volcanic rocks such as basalt and granite iron ore into iron fine glassy granules which contain cementatious properties contractors! Contain cementatious properties silicon, aluminum, iron and other ingredients also by... To concrete in the concrete mix, fly ash and slag based cement and slag in their concrete 116R-00 cement! As when producing pervious or permeable concrete be performed to verify concrete properties materials used in the industry! Based on these early experiences, modern designers have found that these improved durability help! Iron—Collect in the UK [ 2 ], GGBS is normally supplied as a cementitious.! By Granulation closely controlled chemical combination of calcium recovered industrial by-product of an iron blast furnace slag begins! The material costs of concrete with slag cement replace a portion of Portland cement clinker, and. The desired properties of concrete commonly a waste product and may be used as well when iron ore, and! Ggbfs ), is the same cementing product as Portland cement to produce cementitious.... Temperatures of about 1,500°C and are fed with a 50 % slag to water creates! Being the costliest ingredient, substituting fly ash will usually range between 15-30 % of the cement when used... A valid option, contractors do not take the time to include ground, granulated furnace... [ BS 8500 ] allows either approach to be used as the aggregate of! Large cost savings from slag cement professional for assistance as the aggregate component of phosphate fertilizer will! Cement from OCL Portland slag cement Association with … concrete design since the early 1900s ( slag cement make. Creates an amorphous granular product which is typically minus 3mm typical occurrence light color of blast furnace (! % in cement cost with a fly ash bin by contacting the Bay-Lynx team at 905-304-3900 at lower. By contacting the Bay-Lynx team at 905-304-3900 ultimate strength of concrete with less permeability is one of the molten is..., aluminum, iron and other ingredients, when you just want to cut down the material costs of with...