production of slag used as aggregates

studies highlights the production of artificial aggregates by sintering up to 1200C (2162F) the energy saving concern has led the researchers to use cold-bonding process which requires minimum energy consumption for making the pellets Gesoğlu et al 17 produced artificial slag aggregates Asphalt comes from natural deposits or more commonly as a by-product of the petroleum industry It is a prevalent material for waterproofing caulking and preserving and is now most frequently used for road surfaces The iron and steel slag used as aggregates for asphalt roads are iron and steel by-products

Ferrosilicate slag from zinc production as aggregates

AGG0078 – Ferrosilicate slag from zinc production as aggregates bound in cement 2 Aggregates Case Study Background Information History Until early 2003 the BZL works was the UK's only primary zinc smelter and had been at the site at Avonmouth near the Severn Estuary for 50 years BZL was able to supply the zinc

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

china clay waste - used in some areas as mortar and concreting sands power station ash (PFA) - used as a cement substitute within Ready Mixed concrete and for block making blastfurnace slag from the iron and steel industries - used as aggregates and when ground to form GGBS as cementitious materials

The use of slag aggregates from iron and steel production in construction dates back to the Romans who used crushed slag from the crude iron production of that time to build their roads Nowadays slag is still used to build roads However slag use is not limited to roads anymore but slag aggregates are widely []

SLAG is a broad term covering all non metallic co products resulting from the separation of a metal from its ore Its chemistry and morphology depends on the metal being produced and the solidification process used Slags can be broadly categorized as ferrous (iron/steel) and non-ferrous (copper lead/zinc) depending on the industry from which

Use of Air

blast furnace slag (ACBFS) as a coarse aggregate in concrete pavements It describes the physical and chemical properties of ACBFS aggregate highlight-ing how this material differs from natural aggregates It also discusses the properties of concrete produced with ACBFS coarse aggregate and identifies

Use of Blast Furnace Slag Aggregate in Concrete K G Hiraskar and Chetan Patil Abstract-The Iron industries produce a huge quantity of blast furnace slag as by–product which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cement

Steel slag aggregates have been used successfully in asphaltic surface mixtures in Europe Canada Australia and parts of the United States (4 16) No major problems with the quality and durability of steel slag a plrnltic concrete (A ) pavem nts have been reported Steel Jag has also been u ed in h t mixe for winter patching

1 6 Expanded Blast Furnace Slag Expanded blast furnace slag is a small part of the supply of structural lightweight aggregates Annual production since 1985 has been about 1 million short tons (910 5 t) in 1997 that was about 12% of the total lightweight aggregate construction-related usage The amount used was only 06% of all blast

2 Use of Recycled Aggregates in Construction Contents EXECUTIVE SUMMARY 3 1 INTRODUCTION 6 1 1 General 6 1 2 Classification of Aggregates 6 2 MANUFACTURED AGGREGATES 7 2 1 Foamed Blast Furnace Slag (FBS) 7 2 2 Fly Ash Aggregates 8 2 3 Manufactured Sand 8 2 4 Polystyrene Aggregate 9 2 5 Expanded Clays Shales and Slates 10 3 RECYCLED AGGREGATES

Oct 01 2015EAF slag is a by-product of steel production currently partially re-used in asphalt concrete However huge quantities of this material are still landfilled Different from other recycled aggregates EAF slag has very good mechanical properties: it is a crushed product with black colour stone appearance and a rough surface texture

11 20 Lightweight Aggregate Manufacturing 11 20 1 Process Description1 2 Lightweight aggregate is a type of coarse aggregate that is used in the production of lightweight concrete products such as concrete block structural concrete and pavement The Standard

How marine aggregates are extracted A significant proportion of the demand for aggregates is satisfied from river lake and sea beds Our marine resources are an increasingly important alternative source of aggregates Marine aggregates play an important role in replenishing beaches and protecting coastlines from erosion

A Study into the Use of Recycle Iron and Steel Slag as an

Iron and steel slag production in Nigeria was estimated at 0 29 tons per ton of steel produced (Uzondu 2012) hence the total Aggregates Two types of aggregate were used for the experiment viz: normal natural aggregate (granite) and slag aggregate

Aggregate " is a collective term for the mineral materials such as sand gravel and crushed stone that are used with a binding medium (such as water bitumen portland cement lime etc ) to form compound materials (such as asphalt concrete and portland cement concrete) By volume aggregate generally accounts for 92 to 96 percent of HMA and about 70 to 80 percent of

1 6 Expanded Blast Furnace Slag Expanded blast furnace slag is a small part of the supply of structural lightweight aggregates Annual production since 1985 has been about 1 million short tons (910 5 t) in 1997 that was about 12% of the total lightweight aggregate construction-related usage The amount used was only 06% of all blast

Production Characteristics and Use of Ferrochromium Slags 173 2 1 Ferrochrome slag The temperature of the slag in tapping is 1700 C and that of the ferrochrome 1600 C The smelting point of the slag has to be higher than the metal smelting point because metal is heated up by using slag liquid phase

This work demonstrated the possibility of producing artificial carbonate aggregates from steel slag optimally activated by carbon dioxide for the purposes of waste recycling and carbon utilization in concrete The value-added application is unique and

Production and characterization of concrete paving blocks containing ferronickel slag as a substitute for aggregates N Dimitrioglou a P E Tsakiridis b N S Katsiotis a M S Katsiotis c P Perdikis d M Beazi a a National Technical University of Athens School of Chemical Engineering Laboratory of Analytical and

Apr 09 2020Engineering researchers at RMIT University examined whether slag that had been used to treat wastewater could then be recycled as an aggregate material for concrete The concrete made with post-treatment steel slag was about 17% stronger than concrete made with conventional aggregates and 8% stronger than raw steel slag

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