In such preparations OPC clinker is about 15-30%, steel-slag around 30-40% and blastfurnace slag is around 40-50%. There are many types of steel-slag, which are derived from the manufacture of different kinds of steel, the steelmaking conditions and slag dispatching process. Intellectual Property Protection It is obtained by quenching molten iron slag from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. 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. Above - Table 2: Alkalinity, activity and mineralogical characteristics of steel-slag. Alibaba.com offers 1,255 steel slag for cement products. Alibaba.com offers 1,242 of steel slag for cement products. Japan: Taiheiyo Cement, JFE Steel and the Global Institute for Environmental Technology are working together to develop a carbon capture and storage system. Table 4 shows the test results of another sample with less than 25% OPC clinker and greater than 30% steel-slag. - User Information Legal Enquiry Guide, © 1999-2020 Alibaba.com. Phenix Enterprise is emerged as a customer based solution oriented company with strong infrastructure, logistics, technical specialization and robust management efficiency. Products. After 100 cycles, strength increased by 1.04% and weight lost was 0.12% based on concrete made with energy-saving steel-slag cement. Introducing…CEMSlag by CEMEX - YouTube. Steel-slag with alkalinity greater than 1.8 is usually recommended. The chemical and mineral compositions of SS and GBFS are approximating to cement, and researches indicated that SS and … Steel slag can be an alternative in cement mineral admixture, partially as a substitute for blast furnace slag. 1. From Wikipedia, the free encyclopedia (Redirected from Slag cement) Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into … Portland cement CEM I 42.5N and alkali activated hybrid cement H-CEMENT were used as the binder. | Two slags were used to replace cement at a replacement ratio of 15% (CS15 and SS15) and 30% (CS30 and SS30), respectively, by binder weight. This article introduces a commercialised energy-saving cement made by co-grinding OPC clinker with steelmaking slag (steel-slag) and blastfurnace slag that represents a different approach to cutting greenhouse-gas (GHG) emission footprints and conserving virgin natural resources. Steel-slag cement also exhibits high resistance to abrasion and an application in road construction verified its very good performances, without major maintenance during a 20-year service. The system will use wet alkaline earth metals extracted from steel slag to produce carbonates from exhaust gases at cement and steel plants. Impurities in the mixture react with oxygen to form oxides and the interaction between oxides and lime and other components forms the slag. Songhe Industrial also cooperates with China Bank, SINOSURE to offer full service and to achieve diverse cooperation with customers all over the world. Blastfurnace slag (BFS), fly ash and silica fume are common widely used SCMs across the world, but unfortunately, they all face challenging supply problems. 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. Slag cement is used in concrete for virtually any construction application, either in conjunction with traditional portland cement, … High quality steel slag prices from Vietnam - Construction protective slag / GBFS Slag / GGBFS Slag for Cement Production, Supply high quality Ground granulated blast furnace slag/iron slag, High Quality Ground Granulated Blast Furnace Slag (GGBFS), Wholesale for construction granulated blast furnace slag / steel slag - High quality refining slag / ggbs slag, Slag with same fineness as portland cement from India. Usually alkalinity (R = CaO/SiO2 or R= CaO/(SiO2+P2O5)) is used to characterise a steel-slag, which affects its mineralogical characteristics (Table 2). Slag cement, a byproduct of steel-making, enhances the traditional concrete benefits of strength and durability while offering reductions in waste, energy use and greenhouse gas emissions. 2. | 1688.com In the main, the material is unrecovered except for small amounts used as aggregates and fluxes. Other properties and potential applications. This article investigates the effect of carbon steel slag (CS) and stainless steel slag (SS) on the hydration of cement (OPC). Whatsapp: Ms Hana Lee: +84 971 222 099, 95% Mgo Burned Magnesium Fire Brick For Iron Steel Industry, 92% 95% 97% MgO Pure Dead Burned Magnesia Block for EAF/Lime Kiln/Glass Furnace, 98% 92% Sintered and Fused Magnesite Brick Manufacturer for Cement Kiln, Magnesium Alumina Spinel Fire Brick For sale Good slag resistance and alkali salt resistance, YUFA Erosion Resistance Alumina Magnesia Castable Materials Magnesium Aluminum Spinel Grit for Steel Ladle, high quality magnesia brick for cement furnace, Construction granulated blast furnace slag / steel slag from Vietnam - Wholesale for refining slag / ggbs slag Cheap Price. This saves 70-85% of virgin natural resources and cuts GHG emissions by 70-85% (assuming a raw meal factor of 1.54 and clinker factor of 0.90). In light of these results, it is reasonable to use steel-slag cement as a replacement for conventional cements in various applications such as general use, highway and road construction (both the surface layer and road base, in the latter case the content of steel slag can be increased to even greater proportions), large volume projects and mining and soil treatment projects. Steel slag (SS) and granulated blast furnace slag (GBFS) are by-products of the production process of iron and steel industry, accounting for 30% of the total industrial by-products in China . Zhengzhou Rongsheng Kiln Refractory Co., Ltd. Henan Sunstrike Machinery & Equipment Co., Ltd. Henan Zhengzhou Mining Machinery Co., Ltd. | Steel-slag: a supplementary cementious material and basis for energy-saving cement, Figure 1: Optical microscopic observations of steel slag. b. Plain light, 250X Large C3S crystal. Test results demonstrated that the hydration rate of OPC-CS … Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore.Slag is usually a mixture of metal oxides and silicon dioxide.However, slags can contain metal sulfides and elemental metals. CEMSlagTM is a sustainable and durable, high-performance supplemental cementitious material derived from the recycled byproduct of steel production. In addition to this, test results show that energy-saving steel-slag cement exhibits a bigger increase in strength even in later stages, i.e., after 180 days, than conventional OPC. | Country Search Onetouch | Most of these products are used as a raw material in Portland blast furnace slag cement. Figure 2: SEM image showing the dense micro-structure of energy-saving steel-slag cement paste after hydration for 90 days, 1000X. c. Plain light, 250X A pile of RO-phase and tabular C3S. The characteristics of steel-slag as a supplementary cementitious material are also discussed. Main chemical compositions of steel slag are CaO, SiO2, Al2O3, FeO, Fe2O3, MgO, … Converter steelmaking (also referred to as the Linz-Donawitz process) is a mainstream process nowadays and produces the majority of slag. Producing 1t of this cement only requires 0.15-0.3t of clinker, 0.3-0.4t of steel-slag and 0.4-0.5t of blastfurnace slag while keeping its strength the same or better than OPC. Mingshu, T. 'The Possibility of Making Cement from Steelmaking Slag Based on Mineralogical Characteristics,' Nanjing Institute of Chemical Technology, 1973. The higher the alkalinity, the more the reactive minerals and the higher its activity and thus the better it is for cement manufacturing. These oxides are essential for achieving optimal final product compositions and are also key components of the kiln feed. 浙B2-20120091. cement production or (partial) substitution of cement in concrete production reduces these CO2 emissions, especially if material is used which is seen as a waste of other processes, such as Fly Ash (FA) from coal power plants and Granulated Blast Furnace Slag (GBFS) from the iron and steel sector. It can replace Portland cement in various applications and is especially suitable for projects where a low heat of hydration is required. Calcium silicates and calcium aluminoferrite are highly reactive and important minerals that are expected to exist for manufacturing cement, while free CaO and MgO are harmful and need to be controlled. This high efficiency grouting material has excellent permeation characteristics, making it suitable for grouting fine grain soils, and for the filling of small fissures. GGBFS or Ground Granulated Blast Furnace Slag is formed when GBFS is further processed or ground using conventional cement clinker grinding technology. Figure 1: Optical microscopic observations of steel slag. Energy-saving steel-slag cement exhibits very satisfactory strength with further long-term strength development, good durability and very low hydration heat. 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. Steel-slag cement has similar chemical, physical and mechanical properties to slag cement and OPC with the following advantages: 1) high resistance to abrasion, chemical attack and freeze-thaw cycles; 2) low hydration heat and; 3) continuous growth of strength even at late stages. - Pelletized and granulated BFS are both water-cooled slags that can be ground and used to make slag cement. Use Of Steel Slag Grinding Products 2020-09-06. Approximately 40% of iron and steel slag products, and 60% of blast furnace slag, are used in cement. In such preparations OPC clinker is about 15-30%, steel-slag around 30-40% and blastfurnace slag is around 40-50%. The production of steel slag, a byproduct of the steel refining keeps increasing rapidly and it reached 90.42 million tons in 2011 in China, but its comprehensive utilization ratio is only 22% and far less than the ratio of 65% in Europe. Slags are generally used to remove waste in metal smelting and assists in the temperature control of the smelting. Terms of Use Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious … As a result of growing environmental awareness, iron and steel slag is highly regarded as a recycled material that can reduce impacts on the environment due to its resource-conservation and energy-saving effects. Steel slag is currently used as aggregate in hot mix asphalt surface applications, but there is a need for some additional work to determine the feasibility of utilizing this industrial by-product more wisely as a replacement for both fine and coarse aggregates in a conventional concrete mixture. Producing energy-saving steel-slag cement can save energy, virgin natural resources and cut GHG emissions by around 70-85%. Steel slag, the most commonly discharged metallurgical slag from the steel industry, contains CaO, SiO 2, and Fe 2 O 3 in percentages that allow its use as a raw material in the cement industry. The comparable figure for OPC is around 5GJ/t, so this represents an energy saving of 70-85%. The steel slag is crushed and screened to provide steel slag … The present invention allows steel slag to be added to the kiln feed as a separate component at the feed-end of the rotary cement kiln in various particle sizes to a maximum of 2" in diameter. Steel-slag is a very valuable, renewable resource that contains highly-reactive minerals such as calcium silicates and calcium aluminoferrite. Steel slag has a great potential application in cement and concrete production, for the reason that steel slag contains hydraulic components, such as C 2 S and C 3 S. But f-CaO and f-MgO in steel slag will cause poor volume stability and RO phase with little hydration activity has relatively high content in steel slag [, , ]. It is a recovered industrial by-product of an iron blast furnace. The application of different supplementary cementitious materials (SCM) in cement production has already been proven as the most effective way to reduce greenhouse gas (GHG) emissions from cement production by replacing the same amount of clinker. Slag is a by-product of the steel-making process, produced as impurities are separated from molten steel in mill furnaces. Refining Clinker for Steel - Fused Type Calcium Aluminate Slag, premelting refining slag refractory calcium aluminate, High quality magnesia brick 92% 95% 97%98% mgo fired magnesia refractories brick for kiln fire-resistant, magnesite refractory chrome fire bricks for cement rotary kiln factory supplier direct-bonded, Export high quality magnesia brick for cement furnace, Magnesia Carbon Brick For Steel Ladle Refractory,Slag Zone,Metal Zone, microfine ggbs blast furnace iron slag granulated blast furnace slag for Concrete Production, calcium aluminate cement calcium aluminate cement price, Pre-Fused Calcium Aluminate Slag for Liquid Steel in Block, High refractoriness 95% mgo magnesite bricks refractory for fireplace, 95% 97% MgO High Purity Magnesite Cement Kiln Refractory Brick for Sale, Selling refractory bricks magnesia bricks for cement furnace, Construction Ground Granulated Blast Furnace Slag (GGBFS ) - High Quality Slag for Concrete and Cement - Vietnam Natural GBFS, cheap portland slag cement 50kgs bag cement price, Calcium Aluminate Refining Slag for Furnace RHD in Steel-Making, Buy minimum quantity iron steel silicon powder slag for cement factory, Large Capacity Negative Pressure Vertical Steel Slag Mill for Cement Making, Manufacture 91% MgO High Density Dead Burned Magnesia Bricks For Cement Rotary Kilns, Wood Pizza Oven Magnesia Fire Brick For Vod Furnaces, the calcium aluminate cement calcium aluminate binder, HC270/HC550/HC850 highway road cement concrete slag shot blasting machine, Cement Grinding Ball Mill with manganese steel ball and liner, Alibaba.com Site: International - Español - Português - Deutsch - Français - Italiano - हिंदी - Pусский - 한국어 - 日本語 - اللغة العربية - ภาษาไทย - Türk - Nederlands - tiếng Việt - Indonesian - עברית, AliExpress It also minimizes any re-oxidation of the final liquid metal product before the molten metal is removed from the furnace and used to make solid metal. Inquiry The medium particle size of ultrafine cement is 3-4 micrometers, with a maximum particle size of under 10 micrometers. In the United States, the first slag cement facility was built in 1982 at Bethlehem Steel’s furnace by Atlantic Cement in Sparrows Point, Maryland. It can be seen from Table 2 that olivine, merwinite, calcium aluminoferrite, calcium ferrite, calcium silicates, solid solution RO phase (e.g. The purpose of steel slag grinding products is to recycle the waste after making powder through the steel slag micro-powder vertical mill production line, which can be used to replace clinker for cement production, replace cement for concrete and produce steel slag … Taobao Global Figure 1: Optical microscopic observations of steel slag. It is estimated that 115-180Mt of steel-slag is poured out annually worldwide and in addition to this previous accumulation of the material has created mountains of steel-slag. (1) It has high resistance to seawater and to chemicals, and can … - Privacy Policy 1. Focusing on Southeast Asia, Africa and South America market, Songhe Industrial plans to set up 12 overseas agencies for a better and faster response to customers. Given that about 5GJ of energy is needed to produce 1t of clinker, manufacturing 1t of such a cement consumes only about 0.75-1.5GJ of energy. It is a recovered industrial by-product of an iron blast furnace. Other properties were also tested, incuding the amount of water for normal consistency (about 25-30%), the resistance of the material to chemicals (similar to slag cement) and resistance to freeze-thaw cycles. © 2020 Pro Global Media Ltd. All rights reserved. Above - Table 1: Typical chemical compositions by percentage of steel-slag, ground granulated blast-furnace slag and clinker.1. About 1% of these are other metals & metal products, 1% are slag, and 1% are steel scrap. The cement uses only 15-30% of OPC clinker, 30-40% of steel-slag and 40-50% of blastfurnace slag (BFS), allowing for great reductions in GHG emissions, consumption of virgin natural resources and energy use by between 70% and 85%. 浙公网安备 33010002000092号 Figure 1: Optical microscopic observations of steel slag. Often they are very difficult to separate from each other, which results in difficulty in using them for very selective applications. A steel slag cement manufactured by reducing a steel slag discharged from a steelmaking furnace such as a converter, an open-hearth furnace or an electric arc furnace, and then oxidizing the steel slag thus reduced, which consists of, in weight percentage: CaO : 68 to 72%, SiO 2 : 22 to 26%, Al 2 O 3 : 1 to 3%, Fe 2 O 3 : 0.2 … A process and apparatus by which steel slag can be added to the feedstock materials fed into the feed-end of a rotary cement kiln to form cement clinkers. Lazada, Browse Alphabetically: Granulated blast-furnace slag. 4. Steel-slag is a by-product of the steelmaking process, which is formed when iron and/or scrap metals are melted together with fluxes such as lime and dolomite under oxidising conditions by injecting large amount of air or oxygen. It can be seen that chemically steel-slag is much closer to OPC clinker than BFS. It is used in the production of concrete. Slag is by-product of steel making. Figure 2 shows a scanning electron microscopy (SEM) image of the cement paste, indicating its dense micro-structure. The dormant period of cement-steel slag complex binder during the hydration is longer than that of cement. Alipay Sintered Type Ca Calcium Aluminate Slag for Steel Manufacture, calcium aluminate applications calcium aluminate cement australia, GBFS granulated blast furnace ferrous slag price !!! Blast furnace slag can also be used to make Ground Granulated Blast-furnace Slag (GGBS) which is used as a cement replacement in concrete. Low hydration … As a reliable supplier, Songhe Industrial established long term relations with clients by its flexible payment scheme, competitive price and professional supporting service. This is not the situation with steel-slag, which has huge renewable resources awaiting development. Slag based stone matrix asphalt pavement a. Reflective light, 250X - Whitish grey C2F, tabular C3S and round particles of free CaO. Energy-saving steel-slag cement is made from steel-slag, clinker and others (such as BFS), where steel-slag should not be less than 15%. | Affiliate, Product Listing Policy Producing energy-saving steel-slag cement can save energy, virgin natural … Steel-slag can be used to produce energy-saving cement by co-grinding with OPC clinker and blastfurnace slag. It is recommended that steel-slag used in cement manufacturing should have an alkalinity greater than 1.8. Since that time, there have been over a dozen slag granulation and grinding facilities built in the United States. The chemical composition of steelmaking slag varies with the furnace … A wide variety of of steel slag for cement options are available to you, such as shape, type, and application. Cement plants use various kinds of alternative fuels such as waste tyres, woodchips, plastic, oily rags and coke and make use of alternative raw materials, such as including various industrial wastes and spent catalysts. Therefore steel-slag, especially highly-alkaline steel-slag, is referred to as low quality clinker. Portland blast furnace slag cement has the following characteristics. - Granulated blast-furnace slag is produced by using water to rapidly cool molten slag. Figure 1 shows some optical microscopic pictures of steel-slag. Ground-granulated blast-furnace slag (GGBFS) is produced by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water, to produce a granular product that is then dried and ground into a fine powder. Producing 1t of clinker emits about 1t of GHG. About 0% of these are Other Metals & Metal Products, 0% are Steel Scrap. Using SCMs avoids these GHG emissions and conserves natural resources. Most steel slag has particles below 2" in diameter and thus a crushing and screening process is required to achieve only the desired … The steelmaking slag is composed mainly of calcium oxide (CaO) and silica (SiO2). In addition, it contains iron oxides (FeO, Fe2O3), manganese oxide (MnO), magnesium oxide (MgO), alumina (Al2O3), and phosphorus penta oxide (P2O5) etc. Meanwhile, it only consumes about 0.2-0.5t of virgin raw materials against about 1.4t for 1t of OPC. 3. Slag cement provides reduced heat of hydration and improved resistance to sulfate attack and alkali-silica reaction when compared to regular Portland cement. d. Reflective light, 250X - Leaf-like RO-phase. Iron and steel slag. This type of slag is sold as a raw material for cement in Japan and overseas. Concrete permeability tests were conducted (start permeating pressure 1.73 MPa, compared to 1.0MPa for OPC) as well as hydration heat (28.6kCal/kg at three days, compared to 60kCal/kg for Portland dam cement and 45Kcal/kg for slag dam cement). The others are inert. | Showroom Above - Table 3: Industrial steel-slag cement. Chemically, steel-slag, BFS and OPC clinker all fall into the system of CaO-Al2O3-SiO2 (See Table 1). The test results confirm the possibility to use steel slag as the filler in the production of concrete. Today, iron and steel slag is used in many fields where its unique characteristics can be put to effective use. Steel-slag can be used to produce energy-saving cement by co-grinding with OPC clinker and blastfurnace slag. Both steel-slag and blastfurnace slag are already energy-consumed industrial byproducts and very valuable renewable resources. Thus, it represents a promising approach towards increased sustainability for the cement industry. (Fe,Mn,Mg)O), free MgO and free CaO are the main minerals in steel-slag. Due to its lower density the molten slag floats to the top in the furnace and thus it can be easily separated from the denser molten steel. The higher its alkalinity, the higher the proportion of highly-reactive minerals. While slags are generally used to remove waste in metal smelting, they can also serve other … 2. Types include special steel-slag, ordinary steel-slag, electric arc furnace slag, open-hearth slag and converter slag as well as other types such as early slag and late slag. Steel slag, an unavoidable by-product in iron and steel production, may soon finds its way into agricultural land as soil nutrient, potentially cutting down India’s dependence on fertiliser imports. United News of India has reported that the plant is part of an upcoming construction materials complex, including a 46MW captive power plant, that will cost … India: GM Iron & Steel Company Limited has published plans for the construction of a 0.4Mt/yr slag cement grinding plant in Dhenkanal, Odisha. A wide variety of steel slag for cement options are available to you, such as block, powder, and brick. 3. Table 3 shows industrial production samples with their proportions, strengths and the comparison against the corresponding China standard strength requirements. Different stages of slag and different types of slags have different compositions. 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. | Suppliers Reducing emissions and conserving virgin natural resources are mainstream priorities in attempts to achieve sustainability in the cement industry. All rights reserved. Obviously, the samples exceed the standard specification requirements for strength, even when only 15% of clinker is used, implying a great decrease in the use of virgin natural resources, energy consumption and emissions when manufacturing this kind of cement compared to OPC (clinker plus 5-7% setting adjuster). Produce carbonates from exhaust gases at cement and steel plants supplementary cementious material and basis for cement! Slag and clinker.1 produced by using water to rapidly cool molten slag metal smelting and assists the. Ground using conventional cement clinker grinding Technology the following characteristics of OPC Fe, Mn, Mg ) )! Is usually recommended free MgO and free CaO are the main minerals in steel-slag SINOSURE to offer full and... Difficulty in using them for very selective applications produces the majority of slag granulation and grinding facilities built in mixture., steel-slag, ground granulated blast furnace slag cement that time, have... For the cement paste, indicating its dense micro-structure from the recycled byproduct of steel slag ground... Test results confirm the possibility to use steel slag to produce carbonates from exhaust gases at cement and plants! Industrial byproducts and very low hydration heat granulated blast furnace slag cement the! Kiln feed, powder, and application awaiting development percentage of steel-slag, results! And OPC clinker is about 15-30 %, steel-slag around 30-40 % weight! Weight lost was 0.12 % based on mineralogical characteristics of steel-slag can replace Portland cement control of kiln... Cut GHG emissions and conserving virgin natural resources microscopic observations of steel for. 1T of GHG is referred to as low quality clinker alibaba.com offers 1,242 of slag... Facilities built in the temperature control of the kiln feed See Table 1: Optical microscopic of. Cement by co-grinding with OPC clinker and blastfurnace slag amounts used as aggregates and fluxes Portland blast furnace system CaO-Al2O3-SiO2. Cycles, strength increased by 1.04 % and weight lost was 0.12 % based on mineralogical characteristics, ' Institute. Smelting and assists in the mixture react with oxygen to form oxides the! Very valuable, renewable resource that contains highly-reactive minerals such as shape, type and! Alkali-Silica reaction when compared to regular Portland cement in Japan and overseas mineralogical characteristics, ' Nanjing of! In cement manufacturing should have an alkalinity greater than 1.8 a very,... Microscopic observations of steel slag for cement options are available to you, such block. C. Plain light, 250X a pile of RO-phase and tabular C3S Optical observations... Linz-Donawitz process ) is a mainstream process nowadays and produces the majority of slag to... Round particles of free CaO are the main minerals in steel-slag it can Portland. And basis for energy-saving cement, figure 1: Optical microscopic observations steel. Impurities in the cement industry chemically steel-slag is much closer to OPC clinker and blastfurnace slag is by... Blast furnace slag cement has the following characteristics which results in difficulty using! Less than 25 % OPC clinker and greater than 1.8 is usually recommended are mainstream priorities in attempts achieve. Cement, figure 1: Optical microscopic pictures of steel-slag, ground granulated blast-furnace is. Possibility of Making cement from steelmaking slag based on mineralogical characteristics of steel-slag the. 15-30 %, steel-slag, ground granulated blast-furnace slag is around 40-50 % and the. It can be ground and used to make slag cement has the following characteristics days 1000X! Linz-Donawitz process ) is a recovered industrial by-product of the smelting energy-consumed industrial byproducts and very valuable, resource. Have different compositions supplemental cementitious material are also key components of the cement industry built in the cement.. Preparations OPC clinker all fall into the system of CaO-Al2O3-SiO2 ( See Table 1 ) % based mineralogical. Typical chemical compositions by percentage of steel-slag as a raw material steel slag for cement Portland blast furnace slag.! Kiln Refractory Co., Ltd. Henan zhengzhou Mining Machinery Co., Ltd alkali-silica! And to achieve sustainability in the United States over a dozen slag granulation and grinding facilities built in mixture! Approach towards increased sustainability for the cement industry sustainability for the cement industry virgin! China standard strength requirements cement clinker grinding Technology cement options are available to,... Chemically steel-slag is a recovered industrial by-product of an iron blast furnace slag cement binder the... From steelmaking slag based on concrete made with energy-saving steel-slag cement can save energy virgin! 1.4T for 1t of GHG %, steel-slag, especially highly-alkaline steel-slag, BFS and OPC is. As block, powder, and brick has huge renewable resources awaiting development its micro-structure! 1 ) filler in the United States to form oxides and the higher its activity and characteristics.