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Concrete Aggregates | Harsco Environmental

Blast Furnace Slag is a performance aggregate that can be used successfully in concrete mixes. Blast furnace slag can be used as a concrete aggregate, blast furnace is durable and light weight. Steel furnace slags are not recommended for use in concrete unless they are engineered for this application. Consult your local Harsco Environmental ...

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Use effects of blast furnace slag aggregates in hydraulic ...

In this paper we present the effects of the incorporation of blast-furnace slag aggregates on the shrinkage, thermal conductivity and diffusivity, behavior at high temperature and durability in aggressive environments for concrete hydraulic basic blast furnace slag aggregates. The development of eco-mortar and eco-concrete could be an interesting field of application for waste recovery of ...

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Blast Furnace Slag - Material Description - User ...

Although blast furnace slag contains a small component of elemental sulfur (1 to 2 percent), the leachate tends to be slightly alkaline and does not present a corrosion risk to steel in pilings (10) or to steel embedded in concrete made with blast furnace slag cement or aggregates.

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Ground Granulated Blast Furnace (GGBF) Slag Used in ...

Iron (Blast Furnace) Slag Blast furnace slag is often used when maximum durability, higher strength, hardness of aggregate, fire resistance, better insulation and lighter weight are required. The shape and texture of blast furnace slag promote excellent bonding with cement mortar. Blast furnace slags can be used as aggregates although they

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Application of Blast Furnace Slag Sand in Cement Concrete ...

Application of Blast Furnace Slag Sand in Cement Concrete–A Case Study 457 4. Conclusion The substitution of natural aggregate with slag sand has positive impact on workability, compressive strength and durability. The GBS and CSS blended concrete laboratory trials experiment carried out and case study of actual concrete supplied at ...

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Blast Furnace Slag Fine Aggregate | JFE MINERAL Co., LTD.

Blast furnace slag fine aggregate received the JIS A 5012 certification in 1981. The Architectural Institute of Japan and Japan Society of Civil Engineers have also published guidelines on the use of this material. Today, this JIS certification has been revised to JIS A 5011-1 (concrete slag aggregate) and has also been added to JIS A 5308 ...

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A Study on Properties of Concrete Made with Processed ...

The blast furnace slag used in the present study was processed using a vertical shaft impactor to modify the particle shape and enhance its aggregate properties. The replacement was done at 50%, 75% and by mass of natural sand in the concrete mix.

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Geopolymer pervious concrete modified with granulated ...

The two major sources of aluminosilicate materials for geopolymer preparation are metakaolin (MK) that is obtained by calcinating kaolin at certain temperature (Gao et al., 2013), and coal fly ash (FA) that is an industrial by-product of coal burning power plant, or granulated blast furnace slag (GBFS) that is industry by-product of iron and ...

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EFFECT OF GRANULATED BLAST FURNACE SLAG AS …

Blast Furnace Slag.30 An experiment investigation is carried out on a concrete containing granulated blast furnace slag in a range of 20%, 40%, 60%, 80% and for M-20 grade. The workability and strength of cement mortar and concrete with varying percentage of granulated blast furnace slag

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USE OF BLAST FURNACE SLAG AS A SUSTAINABLE MATERIAL …

Reference: Smith, K., Morian, D., Van Dam, T. Use of Air-Cooled Blast Furnace Slag as Coarse Aggregate in Concrete Pavements — A Guide to Best Practice . FHWA Report FHWA-HIF-12-009.

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use of blast furnace slag in road construction.ppt

Use of blast-furnace slag's as • Sand and gravel for the construction of road beds, • Basic filler in asphalt–concrete mixtures for the construction of road and airport coatings, • Unroasted cement (binder) for reinforcing roadways and • Preparing slow-setting concrete. Use of Blast Furnace Slag in Road Construction. 23.

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Use of Blast Furnace Slag Aggregate in Concrete

The use of blast furnace slag aggregates in concrete by replacing natural aggregates is a most promising concept because its impact strength is more than the natural aggregate. Steel slag aggregates are already being used as aggregates in asphalt paving road mixes due to their mechanical strength, stiffness, porosity, wear resistance and water ...

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Blast Furnace Slag Cements & Aggregates: Enhancing ...

aggregates in concrete. Blast furnace slag is a co-product in the manufacture of iron and is thus considered a recovered resource material. Ground Granulated Blast Furnace Slag, or GGBFS, the ground form of granulated blast furnace slag (GBFS), is used as a supplementary cementitious material

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Letter Circular 140: blast furnace slag as concrete aggregate

f *5 TABLEII.-ChemicalAnalysesofSlagAggregates Aggregate Si0 2 a12°3Fe0CaO MgO S0 3 Sul- phide Sul-phur Nat'lSlagCompany Coarsefurnaceslag*-31:4i12.761.1036.2412.860 ...

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Effects of utilising granulated blast furnace slag as fine ...

The present study evaluates the effect of utilising granulated blast furnace slag as a partial substitution of the fine fraction of natural aggregates on various concrete parameters using the general factorial approach. Two levels of the water/cement ratio (0.45 and 0.5) and four different percentages of granulated blast furnace slag (0, 20%, 40% and 60%) have been considered for this purpose ...

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Concrete aggregate : Iron and steel slag products : NIPPON ...

JIS standards were formulated for blast furnace slag course aggregates in 1977, and for fine aggregates in 1981. These standards have been incorporated into recommendations for a variety of practices by the Architectural Institute of Japan and the Japan Society of Civil Engineers, and these aggregates have earned a place as an important construction material.

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Blast Furnace Slag Cement - Manufacture, Properties and ...

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. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties.

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National Slag Association Aggregate aggregate gradation …

Portland Cement Concrete (PCC) with air-cooled blast furnace slag as the coarse aggregate exhibits flexure strength equivalent to and compressive strength up to 10% greater than Portland Cement Concrete made with natural aggregates. blast furnace slag concrete mix designs* Pavement Designs Air Entrained Sks. / CY 4 4.5 5 5.5 6 6.5 7 7.5

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Use of Air-cooled Blast Furnace Slag as Coarse Aggregate ...

This report presents available information regarding the use of air-cooled blast furnace slag (ACBFS) as coarse aggregate in concrete pavements. The report discusses ACBFS aggregate production and properties, and the properties of concrete produced with ACBFS coarse aggregate.

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Technical Report UDC 669 . 162 . 275 . 2 : 666 . 972 . 12 ...

Iron Blast Furnace Slag Aggregate for Concrete" in 1977 and fine BF slag aggregate as JIS A 5012 "Water Granulated Iron Blast Fur-nace Slag Aggregate for Concrete" in 1981. Thereafter, the two were unified as JIS A 5011-1 "Slag Aggregate for Concrete, Part 1 Blast Furnace Slag Aggregate". Then, in 1983, the Japan Society of Civil

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Blast Furnace Slag Aggregates FLY ASH REFERENCE …

less significant with vesicular aggregates such as slag. Typical values for BFS aggregates tested to AS1141.227 are presented in Table 1. In summary, BFS aggregates wet/dry strength variation is between 10 – 20% and conforms to criteria set down in AS2758.14. A Guide to the Use of Iron Blast Furnace Slag in Cement and Concrete - ASA Data ...

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Effects of Ground Granulated Blast Furnace Slag in ...

Slag cement is often referred to as "ground granulated blast-furnace slag" (GGBFS). As requested in 2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement …

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Use of Air-cooled Blast Furnace Slag as Coarse Aggregate ...

Use of Air-cooled Blast Furnace Slag as Coarse Aggregate in Concrete Pavements : a Guide to Best Practice. About; Contact Us; Help; ... This document contains recommendations for best practices related to the use of air-cooled blast furnace slag (ACBFS) as coarse aggregate in concrete pavements. It is primarily based on the results of a review ...

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Slag aggregates | Tarmac

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. Blast furnace slag can also be used to make Ground Granulated Blast-furnace Slag (GGBS) which is used as a cement replacement in concrete.

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Materials | Free Full-Text | Properties of Concrete Using ...

However, there are few studies on the concrete using blast furnace slag sand and recycled aggregate used to make high-performance recycled aggregate concrete. In this study, in order to improve the strength and durability of concrete using low-class recycled coarse aggregate, blast furnace slag …

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Characteristics of Mortars with Blast Furnace Slag Powder ...

Recently, interest in environmentally friendly development has increased worldwide, especially in the construction industry. In this study, blast furnace slag powder (BFSP) and mixed steel fine aggregates were applied to cement mortars to reduce the environmental damage caused by the extraction of natural aggregate and to increase the recycling rate of steel by-products in the construction ...

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Aggregates for Concrete - Memphis

blast-furnace slag is also used as fine or coarse aggregate. The aggregates are usually washed and graded at the pit or plant. Some variation in the type, quality, cleanli-ness, grading, moisture content, and other properties is expected. Close to half of the coarse aggregates used in portland cement concrete in North America are gravels;

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(PDF) A Study on Properties of Concrete Made with ...

The paper presents investigation of how the usage of bottom ash (BA), granulated blast furnace slag (GBFS), and combination of both of these materials as fine aggregate in concrete affects the ...

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Applications of Steel Slag Powder and Steel Slag Aggregate ...

The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture surface. The results show that the fluidity …

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Influence of granulated blast furnace slag as fine ...

The use of powdered form of granulated blast furnace slag as partial replacement of cement for making concrete has been well established (Patra and Mukharjee 2014). The properties of mortar and concrete were significantly influenced by the use of aggregates produced from steel slag because of the hydraulic activity of steel slag (Lin et al. 2003,

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SUITABILITY OF BLAST FURNACE SLAG IN CONCRETE

of utilizing the blast furnace slag as a replacement for natural aggregate in the concrete. b) The original scope of this research is to investigate the properties of concrete with blast furnace slag aggregates. c) To study the effect on compressive strength, and the flexural strength of concrete with blast furnace slag.

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Converting Granulated Blast Furnace Slag into Fine …

Converting Granulated Blast Furnace Slag into Fine Aggregate 93 Fig 1: BF Slag Granulation PROBLEM Granulated blast furnace slags are available with steel industry for decades but were never accepted as a fine aggregate in construction activities till this developmental work.

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Properties of Hardened Concrete with Blast Furnace Slag

At 7 days and beyond, the flexural strength of slag concrete is equal or exceeds controlled concrete flexural strength. The larger flexural strength of blast furnace slag concrete is the result of the stronger bond which is achieved in cement-slag-aggregate system due to slag particle shape and surface texture. Figure-4 shows slag particles.

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Properties of Concrete Using Treated Low-Class Recycled ...

Recently, blast furnace slag sand is expected to improve durability, freezing, and thawing damage of concrete in Japan. Properties of fresh and hardened concrete bleeding, compressive strength, and resistance to freezing and thawing which are caused by the rapid freezing and thawing test using liquid nitrogen is a high loader than the JIS A ...

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WO2008013694A2 - Slag concrete manufactured aggregate ...

slag concrete aggregate cement manufactured aggregate Prior art date Application number PCT/US2007/016140 Other languages French (fr) Other versions WO2008013694A3 (en Inventor William V. Abbate Original Assignee Excell Technologies, Llc Priority date (The priority date is an assumption and is not a legal conclusion.

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On Zinc and Indium Recycle from Blast Furnace Slag by ...

The Fuming process is applied to comprehensively recycle lead-antimony blast furnace slag.Slag is fed in fuming furnace in the form of cold particulate Each period costs1.5~2.5 hours.when the fuming temperature reaches 1,250 ℃ and the reduction smelting time lasts 2 hours,the majority of useful metals can be recovered as metal oxide with the product rate around 14 %.And the derelict slag can ...

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USE OF GRANULATED BLAST FURNACE SLAG AS FINE …

Granulated Blast-Furnace Slag (GBFS) as an aggregate in cement mortar and concrete provides environmental as well as economic benefits. Many steel industries in India are supplying GBFS as an alternative to sand. In addition there are many other alternative materials for aggregates derived from cons-truction and demolition wastes, recycled agg-

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Use of Granulated Blast-Furnace Slag in Concrete as Fine ...

Keywords: aggregates; durability; slag cement. Date: 5/1/2006. Abstract: This paper reports the results of some experimental studies on the use of non-ground-granulated blast-furnace slag (NGGBFS) as fine aggregate in concrete. Two groups of concrete samples were produced. The NGGBFS/sand ratios were 0% (reference), 25, 50, 75, and .

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A Experimental Study on Partial Replacement of Cement with ...

Blast furnace slag is a by-product and using it as a aggregate in concrete will might prove an economical and environmentally friendly solution in local region. The strength of concrete increase gradually upto30% replacement of concrete and the decreases this is mainly due to arrangement and the increase of air voids beyond 30% replacement.

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UG-Mat Blast Furnace Slag | Recycled Materials Resource Center

Although blast furnace slag contains a small component of elemental sulfur (1 to 2 percent), the leachate tends to be slightly alkaline and does not present a corrosion risk to steel in pilings (10) or to steel embedded in concrete made with blast furnace slag cement or aggregates.

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