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EVALUATION OF STEEL SLAG FINE AGGREGATE IN HOTMIX ASPHALT MIXTURES. Since a considerable amount of steel slag is produced in the southwestern part of Pennsylvania around Pittsburgh, where natural fine aggregate sources are limited, an evaluation was undertaken to determine the feasibility of using "cured" steel slag fine aggregate in hotmix asphalt (HMA) mixtures.
Asphalt concrete can be produced and the pavement constructed readily in Oregon when crushed steel slag is used as a portion of the aggregate. If the unit cost of steel slag modified mixes is the same as conventional dense graded mixes, overall project costs may increase because of the decrease in coverage by the heavier steel slag mix. or the ...
Jun 18, 2019· Laboratory evaluation of hotmix asphalt concrete containing copper slag aggregate. Journal of Materials in Civil Engineering 23 (6): 879885 Crossref, ISI, Google Scholar . Havanagi V, Mathur S, Prasad P, Kamaraj C. 2007.
The study investigates the use of dolomite sand waste as a filler or/and sand material plus BOF steel slag as a fine and coarse aggregate for the design of high performance asphalt concrete. Various combinations of steel slag, dolomite sand waste and conventional aggregates were used to develop AC 11 asphalt concrete mixtures.
One of the main applications of the recycled steel slag is aggregate for asphalt pavement. ... B. Sengoz, Evaluation of steel slag coarse aggregate in hot mix asphalt . concrete, J. Hazard. Mater ...
Steel slag aggregates use in hot mix asphalt concrete. Final report prepared for the Steelmaking Slag Technical Committee, Toronto, Ont. John Emery Geotechnical Engineering Limited (JEGEL).
Unlike recycled cold asphalt mixes, cold asphalt mixes use aggregates and bitumen. Mix Types Primarily two types of cold asphalt mixes are used: Dense graded and Open graded. Dense graded mixes are continuously graded from the maximum aggregate size down to material passing mm sieve size.
Jan 01, 2017· Steel slag is a byproduct of the steel industry and can be used potentially as aggregate in asphalt mixture. This study evaluates the use of Steel Slag Aggregates (SSA) as substitute for natural aggregates in the production of hot mix asphalt (HMA) for road construction. Based on intensive laboratory testing program, the characteristic properties of SSA were assessed to determine its ...
Abstract. 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 byproduct more wisely as a replacement for both fine and coarse aggregates in a ...
The 2016 trial project included a onemile trial section of hotmix asphalt pavement constructed using steel slag aggregate as a replacement for 20 percent of the coarse aggregate in the HMA. The trial section was part of a project that improved five miles of SR 203 by grinding out the existing pavement and replacing it with new pavement.
There are many steelmanufacturing factories in Iran. All of their byproducts, steel slag, are dumped randomly in open areas, causing many environmentally hazardous problems. This research is intended to study the effectiveness of using steel slag aggregate (SSA) in improving the engineering properties, especially fatigue life of Asphalt Concrete (AC) produced with steel slag.
Dec 25, 2017· Use of steel slag aggregate in asphalt concrete mixes. Canadian Journal of Civil Engineering, 34(8), 902 – 911. /l07025, [Web of Science ®], [Google Scholar] ASTM International. (2015). ASTM D6927 15. Standard test method for Marshall stability and flow of asphalt mixtures. West Conshohocken, PA: Author. [Google Scholar]
The mix is designed for M40 grade. First mix (Control mix 0 M 0) made of OPC as a binder and river sand, second mix (0 M 50) made of OPC and 50% slag aggregate and third mix (25 M 50) made of 25% OPC replaced by fly ash and 50% river sand replaced by slag aggregate. Mechanical and durability properties of all the three concretes are studied.
Behavior of a Hot Mix Asphalt using Blast Furnace Slag and Gilsonite . ... aggregate by a blast furnace slag (BFS), and its asphalt cement (AC 6070) is modified by wet way with a natural ... 500, and 1000 revolutions without the charge of steel, and .
In this study, steel slag was used, as a replacement for mineral aggregate, in hot mix asphalt. Two hot mix asphalt mixtures with an equivalent nominal aggregate size of () and 19 mm (C19) were produced using steel slag. In addition, one conventional hot mix asphalt mixture of C19 was produced using mineral aggregate for comparison ...
conservation of natural aggregates. Use should be limited to hotmix asphalt with laboratory testing required to assess the quality of the aggregate and its strength under repeated loads and moisture. All projects using steel slag aggregate should be classified as experimental.
STEEL SLAG User Guideline. Asphalt Concrete. INTRODUCTION. Steel slag can be processed into a coarse or fine aggregate material for use in dense and opengraded hot mix asphalt concrete pavements (1,2,3), and in cold mix or surface treatment applications. (4) Proper processing of steel slag and special qualitycontrol procedures are extremely important in selecting steel slag for use in ...
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 byproduct more wisely as a replacement for both fine and coarse aggregates in a conventional concrete mixture.
Jun 06, 2019· Typically, aggregates used for asphalt mixtures consist mainly of natural aggregates such as crushed rock and gravel. Sometimes the natural aggregates are substituted with limited amounts of industrial byproducts, such as Reclaimed Asphalt (RA), slag.
Steel Slag Asphalt Concrete INTRODUCTION Steel slag can be processed into a coarse or fine aggregate material for use in dense and opengraded hot mix asphalt concrete pavements, (1,2,3) and in cold mix or surface treatment applications. (4) Proper processing of steel slag and special qualitycontrol procedures are extremely important in selecting steel slag for use in asphalt paving mixes.
According to the Washington State Department of Transportation''s Use of Steel Slag Aggregate in Pavements report in 2015, a high iron oxide content in steel slag aggregates creates pavement that is both hard and dense, making it a superior choice over natural aggregates such as rocks in creating hot mix asphalt.. Also, when used in bituminous pavements, slag offers the advantages of high ...
He believes that making use of EAF slag will add value to a substance that has long been perceived as a problem. At present over 90% of highway paving in Thailand is constructed from asphalt concrete. Asphalt concrete (also referred to as hot mix asphalt) is a mixture of fine and coarse aggregate with an asphalt cement binder.
Aug 03, 2020· A hot mix asphalt (HMA), which is typically used for roads and parking lots, is as much as 95 percent asphalt aggregate by weight. The majority of aggregate in the mix is usually coarse, or large in size, followed by crushed stone and gravel. The remaining aggregate .
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
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