how slag works concrete

What is Slag Cement?

Freshly mixed slag powder concrete works well, the slump loss over time is reduced, it is easy to vibrate, and the bleeding is low [2] Used for ordinary concrete, various high-grade, high-performance concrete and cement products to replace the amount of cement in order to improve the durability of concrete and cement products in various harsh ...

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Is slag good for driveways? - FindAnyAnswer.com

Apr 22, 2020· Slag cement is most widely used in concrete, either as a separate cementitious component or as part of a blended cement. It works synergistically with portland cement to increase strength, reduce permeability, improve resistance to chemical attack and inhibit rebar corrosion.

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of Concrete Using Steel Slag Coarse Aggregate

Jun 26, 2020· works [4–6]. Steel slag is a byproduct of the steelmaking process which is produced during the separation of the molten steel from impurities in the steelmaking furnace, and it is used as coarse aggregate in concrete. It was found that steel slag aggregate (SSA) has superior physical and mechanical properties as well as

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Slag in the mix design - Concrete Engineering general ...

Aug 16, 2007· Slag cement is a wonderful material to work with, from 4,000 psi concrete to 15,000 psi concrete. I've used 50% in 13,000 psi concrete and it works beautifully. Don't be afraid to use 30% or 40%, you won't be sorry. Unfortunity, slag is not available in all areas, especially hard to find in the West.

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What is Slag Cement? (with pictures)

Slag cement has actually been used in concrete projects in the United States for over a century. Its earliest use was documented in 1774, when it was combined with slaked lime and used as a mortar.This cement was first used commercially in Germany in the 1860s, and it was such a success that engineers in 1889 decided to build the Paris underground metro using slag-lime cement.

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A Closer Look: Fly Ash, Slag Cement & Metakaolin ...

Jan 07, 2020· How slag impacts fresh concrete. Slag cement usually decreases water demand between 1% and 10%, depending on dosage. Like fly ash, slag cement will generally enhance the workability of concrete. However, its effect on the required dosage rate of air-entraining admixtures is variable. The impact of slag cement on bleed rates will depend on its ...

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how slag works concrete - greenrevolution.org.in

Slag Bowls 2013 - Jamie North. Two new works created from concrete and steel slag and inhabited by moss collected from where the slag was obtained.

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Concrete Aggregate | Stronger Concrete | What Is Slag

Apr 08, 2020· Concrete made with recycled steel slag is 17 percent stronger than traditional concrete. Disposing of slag is a millennia-old problem, but the "waste material" is highly sought in construction.

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Why is slag used in concrete? - Quora

Slag, aka ground granulated blast furnace slag (GGBFS) is used as a supplementary cementitious material. It can be used ot replace some of the Portland cement in concrete. It can help to make economical concrete of exceptional quality. It can decr...

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[PDF] Ground Granulated Blast Slag (GGBS) In Concrete – A ...

Concrete is a mixture of cement, fine aggregate, coarse aggregate and water. Concrete plays a vital role in the development of infrastructure Viz., buildings, industrial structures, bridges and highways etc. leading to utilization of large quantity of concrete. On the other side, cost of concrete is attributed to the cost of its ingredients which is scarce and expensive, this leading to usage ...

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Alkali-activated slag cement and concrete: a review of ...

Jul 27, 1995· This paper summarizes the advantageous and disadvantageous properties of alkali-activated slag cement and concrete by reviewing previously published work in English, Russian and Chinese. Practical problems and theoretical questions are discussed. Topics for …

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Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

and the desired effects on the concrete (Helmuth 1987 and ACI 232 1996). SLAG Ground granulated blast-furnace slag (Fig. 3-5), also called slag cement, is made from iron blast-furnace slag; it is a nonmetallic hydraulic cement consisting essentially of sili-cates and aluminosilicates of …

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CONCRETE MATERIALS AND TESTING

September 1, 2003 CONCRETE MAN UAL 5-694.100 CONCRETE MATERIALS AND TESTING 5-694.100 5-694.101 GENERAL REQUIREMENTS The Specifications contain requirements for all concrete materials. Inspect all materials used in the construction of concrete work at their source, on the job, or both. The Engineers and

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(PDF) Compressive Strength of High Volume Slag Cement ...

The influence of slag content on Compressive strength, Split tensile strength and Flexural strength of High volumes of slag concrete (Cement : GGBFS is 50:50) specimens of different water-binder ...

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Study on The Thermal Properties of Concrete Containing ...

Study on The Thermal Properties of Concrete Containing Ground Granulated Blast Furnace Slag, Fly Ash and Steel Reinforcement Bekir Erdem Bas WVU, [email protected] Follow this and additional works at: https://researchrepository.wvu.edu/etd Part of …

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What is slag cement

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 ...

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Blast Furnace Slag Cement (Application, Pros & Cons)

The production cost of this cement is less than the Ordinary Portland Cement (OPC). Disadvantages of Blast-Furnace Slag Cement Early Strength is low; therefore, it cannot be used in Reinforced Cement Concrete (RCC) works. As the initial setting time is high, this cement is not used for emergency or repair works. Related product: Blast Furnace slag

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Sustainable Use of Steel Industry Slag (SIS) for Concrete ...

Therefore, adequate research works should be done in Bangladesh in the aspect of sustainable uses of SIS. In addition, it is also needed to find a method for recycling SIS as a more highly valued material, specifically to ensure its potential use as an admixture in concrete production. ... Slag cement processing produces a value-added commodity ...

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Use of Blast Furnace Slag Aggregate in Concrete

concrete with steel slag aggregate was somewhat better but no improvement in tensile strengths were observed. In this work an attempt is made to study the strength parameters, modulus of elasticity, water absorption, porosity and saltwater effect on two types of concrete mixes, i.e., one comprising blast furnace slag and

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Slag recycling - recovery

In addition, 7.4 Mta of steelworks slag was produced. Fig. 9 shows the amounts recovered. It can be seen that only granulated blast furnace slag (GBFS) can be used as a cement additive. For ready-mixed concrete and other types of concrete, both normal blast furnace slag and steelworks slag are used with respective totals of 38.7 % and 20.3 %.

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PROPERTIES AND EFFECTS OF COPPER SLAG IN CONCRETE

Properties And Effects Of Copper Slag In Concrete 46 PROPERTIES AND EFFECTS OF COPPER SLAG IN CONCRETE M. V. PATIL Applied Mechanics Department, S.V. National Institute of Technology, Surat, Gujarat Abstract: Copper slag is a by-product obtained during matte smelting and refining of copper. This work reports an

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Steel Slag - Material Description - User Guidelines for ...

Mar 08, 2016· Asphalt Concrete Aggregate, Granular Base, and Embankment or Fill. The use of steel slag as an aggregate is considered a standard practice in many jurisdictions, with applications that include its use in granular base, embankments, engineered fill, …

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Broader Use of Steel Slag Aggregates in Concrete

BROADER USE OF STEEL SLAG AGGREGATES IN CONCRETE JIGAR P. PATEL ABSTRACT . 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

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What is GGBS? Its Advantages and Disadvantages ...

Oct 02, 2020· What is Ground Granulated Blast Furnace Slag (GGBS)? The ground granulated blast furnace slag (GGBS) 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 the iron ore, limestone, and coke at a temperature of about 1500 o C. The process is carried out in a blast …

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