Functional use: Ground granulated slag is often used in concrete in combination with Portland cement as part of a blended cement. Ground granulated slag reacts with water to produce cementitious properties.
Introduction to Slag Crushing
Slag is produced during the smelting process in several ways. Firstly, slag represents undesired impurities in the metals being smelted, which float to the top during the smelting process. Secondly, metals start to oxidize as they are smelted, and slag forms a protective crust of oxides on the top of the metal being smelted, protecting the liquid metal underneath. When the metal is smelted to satisfaction, the slag is skimmed from the top and disposed of in a slag heap to age. Aging slag is an important part of the process, as it needs to be exposed to the weather and allowed to break down slightly before it can be used.
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 concrete performance is enhanced in many ways. Based on these early experiences, modern designers have found that these improved durability characteristics help further reduce life-cycle costs, lower maintenance costs and makes concrete more sustainable. For more information on how slag cement is manufactured and it enhances the durablity and sustainability of concrete,
Slag Crushing Applications
The South Dakota DOT research project investigated the effects of concentrated brines of magnesium chloride, calcium chloride, sodium chloride, and calcium magnesium acetate on portland cement concrete. Their study showed that chemical attack of the hardened cement paste is significantly reduced if supplementary cementitious materials are included in the concrete mixture. Both ground granulated blast furnace slag (slag cement) and fly ash were found to be effective at mitigating the chemical attack caused by the deicers tested. In the tests performed, slag cement performed better as a mitigation strategy as compared to coal fly ash.
Steel slag is an industrial byproduct obtained from the steel manufacturing industry. It is produced in large quantities during the steel-making operations which utilize Electric Arc Furnaces (EAF). Steel slag can also be produced by smelting iron ore in the Basic Oxygen Furnace (BOF). Steel slag can be used in the construction industry as aggregates in concrete by replacing natural aggregates. Natural aggregates are becoming increasingly scarce and their production and shipment is becoming more difficult. 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. Most of the volume of concrete is aggregates. Replacing all or some portion of natural aggregates with steel slag would lead to considerable environmental benefits. Most of the natural aggregates in the state of Ohio are shipped in from out of the state, whereas large steel slag deposits are locally available. The primary aim of this research was to evaluate the durability of concrete made with steel slag aggregates. This research has shown that replacing some percentage of natural aggregates by steel slag aggregates causes negligible degradation in strength. It is shown that as the amount of steel slag is increased beyond 75%; the workability of the concrete mixture became an important issue which eventually requires larger amounts of water reducing admixtures to achieve a minimum slump. The results showed that replacing about 50 to 75% of steel slag aggregates by volume for natural aggregates will not do any harm to concrete and also it will not have any adverse effects on the strength and durability.
NFLG Slag Crusher and Grinding Mill
NFLG is a professional manufacturer of slag crusher, slag grinding mill and other slag mining equipment. Besides, we supply kinds of stone crushers and industry grinding mills. Our products have exported to over 130 countries and got customers’ appreciate.
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NFLG CRUSHER FOR SLAG CRUSHING
SLAG PROPERTIES
Hardness: 8
Composition: Carbon Quartz Pyrite Gold
Special quality:hard
Place of origin: world
Functional use: Ground granulated slag is often used in concrete in combination with Portland cement as part of a blended cement. Ground granulated slag reacts with water to produce cementitious properties.
Introduction to Slag Crushing
Slag is produced during the smelting process in several ways. Firstly, slag represents undesired impurities in the metals being smelted, which float to the top during the smelting process. Secondly, metals start to oxidize as they are smelted, and slag forms a protective crust of oxides on the top of the metal being smelted, protecting the liquid metal underneath. When the metal is smelted to satisfaction, the slag is skimmed from the top and disposed of in a slag heap to age. Aging slag is an important part of the process, as it needs to be exposed to the weather and allowed to break down slightly before it can be used.
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 concrete performance is enhanced in many ways. Based on these early experiences, modern designers have found that these improved durability characteristics help further reduce life-cycle costs, lower maintenance costs and makes concrete more sustainable. For more information on how slag cement is manufactured and it enhances the durablity and sustainability of concrete,
Slag Crushing Applications
The South Dakota DOT research project investigated the effects of concentrated brines of magnesium chloride, calcium chloride, sodium chloride, and calcium magnesium acetate on portland cement concrete. Their study showed that chemical attack of the hardened cement paste is significantly reduced if supplementary cementitious materials are included in the concrete mixture. Both ground granulated blast furnace slag (slag cement) and fly ash were found to be effective at mitigating the chemical attack caused by the deicers tested. In the tests performed, slag cement performed better as a mitigation strategy as compared to coal fly ash.
Steel slag is an industrial byproduct obtained from the steel manufacturing industry. It is produced in large quantities during the steel-making operations which utilize Electric Arc Furnaces (EAF). Steel slag can also be produced by smelting iron ore in the Basic Oxygen Furnace (BOF). Steel slag can be used in the construction industry as aggregates in concrete by replacing natural aggregates. Natural aggregates are becoming increasingly scarce and their production and shipment is becoming more difficult. 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. Most of the volume of concrete is aggregates. Replacing all or some portion of natural aggregates with steel slag would lead to considerable environmental benefits. Most of the natural aggregates in the state of Ohio are shipped in from out of the state, whereas large steel slag deposits are locally available. The primary aim of this research was to evaluate the durability of concrete made with steel slag aggregates. This research has shown that replacing some percentage of natural aggregates by steel slag aggregates causes negligible degradation in strength. It is shown that as the amount of steel slag is increased beyond 75%; the workability of the concrete mixture became an important issue which eventually requires larger amounts of water reducing admixtures to achieve a minimum slump. The results showed that replacing about 50 to 75% of steel slag aggregates by volume for natural aggregates will not do any harm to concrete and also it will not have any adverse effects on the strength and durability.
NFLG Slag Crusher and Grinding Mill
NFLG is a professional manufacturer of slag crusher, slag grinding mill and other slag mining equipment. Besides, we supply kinds of stone crushers and industry grinding mills. Our products have exported to over 130 countries and got customers’ appreciate.