Cement : Iron and steel slag products : NIPPON …
The majority of the demand for these products comes from the field of cement. Approximately 40% of iron and steel slag products, and 60% of blast furnace slag, are used in cement. Most of these products are used as a raw material in …
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KSI opens slag grinding plant
PT Krakatau Semen Indonesia (KSI), a joint venture between state-owned steel maker PT Krakatau Steel and state-owned cement maker PT Semen Indonesia, has opened a new slag grinding plant. Located on a 4ha plot in Cilegon, Banten, Indonesia, the IDR420bn (US$31.4m) project saw construction start in 2014.
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Perforated cenospheres used to enhance the engineering …
In this new type of cementitious material, the replacement rate of slag is limited, about 30 %, which is much lower than the traditional cement-slag cement CEM III/B and CEM III/C, which contain 66 %-95 % slag. For cement-slag-limestone ternary system, the influence of limestone and slag on the strength of concrete is different.
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Preparation and properties of carbonated steel slag used in cement
At present, carbonation or CO 2 curing is widely used in cement concrete products, because the process can improve the mechanical [18] and durability [19] properties of cement concrete. Furthermore, f-CaO and MgO-containing minerals in SS make it a potential candidate for carbonated binder, and it has already been proved to have high ...
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IRON AND STEELMAKING SLAGS: ARE THEY …
The slag used for cement production is in the form vitreous slag which is prod uced by granulation technique while the slag for road construction is the form of crystalline come from slow cooling ...
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Use of Nickel Slag Waste as Coarse Aggregate in …
Indonesia is the largest nickel producer in the world. but from another aspect, the problem of ex-mining pits, combustion ash waste, nickel slag and others are environmental issues in the nickel ...
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Krakatau Semen Indonesia introduces slag cement
PT Krakatau Semen Indonesia (PTKSI) held a workshop on the utilization of Ground Granulated Blast Furnace Slag (GGBFS), commonly known as slag cement. Through this workshop, KSI introduced the benefits of slag …
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SUGGESTED SPECIFICATIONS FOR SLAG CEMENT IN …
When using reactive aggregate, slag cement shall be used at replacement levels between 25 and 70 percent (by mass of cementitious material). 2. Mitigation of ASR shall be verified by testing in accordance to ASTM C-12608. 3. If the specific slag/portland cement mixture is shown to mitigate ASR in accordance
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Spesifikasi semen slag untuk digunakan dalam beton dan …
Standar Nasional Indonesia tentang "Spesifikasi semen slag untuk digunakan dalam beton dan mortar" merupakan adopsi identik dari ASTM C989-10, Standard specification for slag cement …
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Slag cement
Indonesia: Suvo Strategic Minerals has reported successful laboratory tests in collaboration with Makassar State University (UNM) in Indonesia, transforming nickel slag into …
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Suvo turns nickel slag into low-carbon cement
Suvo Strategic Minerals (ASX:SUV) says it has produced high-strength, low-carbon cement from nickel slag during recently completed laboratory trials at the Makassar State University (UNM) in Indonesia.
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RESULTS FOR SLAG IN CONCRETE
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 …
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Semen Indonesia launches slag cement
Indonesia: Semen Indonesia has launched a new slag cement product under the brand 'Maxstrength Cement.' The cement producer said it was the first Portland Slag cement produced in the country.
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Economy, Energy, and Environment Impact on the Use of Ferronickel Slag
The demand for cement in Indonesia is also rather strong, ... However, considering the existing public policies, the best option for the case study is 50% slag concrete. These results are of ...
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NewCem | Slag Cement Canada | Slag Concrete | Lafarge Canada
Slag Cement. Lafarge NewCem® is a supplementary cementitious material (SCM), offering a tested solution to enhance the specific qualities of concrete when used in controlled proportions.
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Slag Cement: A Valuable SCM to add to Your …
Slag cement was used to prevent thermal cracking in the thicker segments of the floor, walls, and roof. It was also used to decrease the permeability of the concrete floor, walls, and columns and to provide sulfate …
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What is slag cement or ground granulated blast-furnace slag …
Slag cement or GGBFS is granulated blast-furnace slag that has been finely ground and that is hydraulic cement. When slag cement is mixed with water, however, the initial hydration is much slower than portland cement mixed with water; therefore, portland cement or salts of alkali metals, principally sodium and potassium or lime, are used to ...
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Suvo Strategic Minerals develops cement from nickel slag
Indonesia: Suvo Strategic Minerals has reported successful laboratory tests in collaboration with Makassar State University (UNM) in Indonesia, transforming nickel slag into …
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What is Slag Cement? How it affect in cement property?
SLAG; Slag cement is a hydrated cement formed when fine Granulated blast furnace slag (GBFS) is used to replace a portion of a portland cement. SLAG: Slag is basically a by-product of an Iron Blast-furnace in the industries. Together Portland cement and slag enhanced the strength of an adhesive, Reduce Permeability, Increased the resistance against …
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PT. KRNG Indonesia
Iron ore slag processing and recycling business, steel slag processing and recycling business, various projects, sludge and dust processing and recycling, factory scale processing and recycling business, cement production (GGBFS).
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PTKSI: High Quality, Slag Cement Cheaper Than Regular Cement
For example, Ten Hudson Yards in the United States, a complex of office buildings with a height of 273 meters, used 415 kilograms/m3 of slag cement as a concrete mixture component. Recognizing the market potential for slag cement, many cement manufacturers in Indonesia have started using slag cement as a raw material for concrete mixtures.
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Slag uses in making an ecofriendly and sustainable concrete: A …
Slag, as shown in Fig. 1, is the 16th ingredient of high-performance concrete production [22], called supplementary cementitious materials (SCM) [23], that can enhance the strength and durability of concrete [2].The highly fine slag powder, with a surface area of 400–600 m 2 /kg and a bulk density of 1200 kg/m 3, can be mixed with free lime to replace 40% to 65% …
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PTKSI: High Quality, Slag Cement Cheaper Than …
Recognizing the market potential for slag cement, many cement manufacturers in Indonesia have started using slag cement as a raw material for concrete mixtures. According to the President Director of PT Krakatau Semen Indonesia (PTKSI), …
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Slag Cement: The Better Cement
The granulated slag used for manufacture of slag cement should conform to IS: 12089-1987 standards. The slag constituent shall not be less than 25 per cent and not more than 70 per cent in PSC as per the IS: 455-2015 standard. Advantages of PSC
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Ground Granulated Blast Furnace Slag as a Cement …
The goal of the current study is to determine the dissolving effect of slag in water. Five percentage values of slag were taken up for the study: 0%, 2.5%, 5%, 10%, and 20%. The study is based on two methods of mixing. The first method is the traditional mixing process, which involves addition of slag directly with other concrete proportions such as cement, sand, water, …
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Why use Fly Ash and Slag in Concrete?
Fly ash can only be activated when cement is being used as well. When cement reacts with water, it produces lime, which reacts with fly ash, which produces CSH (Hydrated Calcium Silicate). The CSH is the same cementing product as Portland cement. Fly ash will usually range between 15-30% of the cement when being used.
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Spesifikasi semen slag untuk digunakan dalam beton dan …
6.1.2 When processing additions are used in the manufacture of slag cement, the maximum amount used shall comply with the requirements of Specification C465 when tested using a blend that is 50 % slag cement and 50 % portland cement by mass. 6. Tambahan 6.1 Semen slag yang dicakup oleh standar ini tidak boleh mengandung bahan tambahan kecuali:
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(PDF) The effect of Ground Granulated Blast Furnace …
The effect of Ground Granulated Blast Furnace Slag (GGBFS) on Portland cement type II to compressive strength of high quality concrete
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SLAG IN CEMENT BLENDS
slags in cement production, It needs to be taken into account that the chemical activation strongly depends on the chemical and mineralogical composition of the clinker too. The SikaGrind® Slag Booster range is a series of cement strength enhancers. This range of products are intended to be used at cement production level for slag cements or slag
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