Pavement design in road construction design parameters. Successively, it is recycled as an aggregate for the construction of roads, soil stabilization, and base and for the surfacing of flexible pavement. The resources of this material are limited, and availability of this material at the project site is less thus it is required to bring this material from their source like stone query to the project site, this lead to increase the cost of the. Jun 03, 2017 use of steel slag in construction of flexible pavements the vast measure of industrial squanders as expanded step by step and transfer turns into an intense issue. Use of steel slag in construction of flexible pavements the vast measure of industrial squanders as expanded step by step and transfer turns into an intense issue. Despite this, a large amount of steel slag generated from steel industries is disposed of in stockpiles to date.
In india, no mix design procedure is available till date for open graded mixes like bm, which has a tendency to crumble at 60. Steel slag is a byproduct of molten iron processing, and different types of steel slag are formed depending on a specific type or grade of steel and the furnace used during steel production. Director, csircentral road research institute, delhi in simple terms, a flexible pavement can be defined as a pavement layer comprising of a mixture of aggregates and bitumen, heated and mixed properly and then laid and compacted on a bed of granular layer. As the united states and the rest of the world continue to grow, so. The evaluate effect of addition of steel slag with various percentages to.
Such as used industrial material like steel slag in construction of road pavement. Steel slag, a byproduct of the steel industry, has been used in road construction in south yorkshire and its environs for the past 60 years. Khabiri2007,preventive maintenance of flexible pavement and mechanical properties of steel slag asphalt. Nearly onethird or onehalf of the total cost of construction, so careful consideration should be taken in design of pavement. Flexible pavement construction and rehabilitation 3 measurement, more durable and efficient mixer components and liners, and more sophisticated timing devices. Journal of environmental engineering and landscape. Technology to reduce the free lime content in steel slag aggregate to prevent volumetric change in aggregate was defined. It is critical that these steel slags be checked for potential expansion, since. Pdf steel slag as a road construction material researchgate. The research covers the construction and fiveyear performance of a pavement constructed with 30% steel slag. The most dominant recycling materials that are in practice at present include plastic wastes, scrap tires, foundry sand, bottom and fly ashes, oil sand, marble dust, recycled concrete. Reuse of steel slag as an aggregate to asphaltic road pavement. Use of steel slags in automobile road construction.
Patil 201811 directed a test research on effect of steel slag on cbr value of black cotton soil. It is necessary to utilize the steel slag waste affectively with technical development in each field. In 2006, steel slag generation was estimated to be in 1015 million metric ton mt. Bitumen, is a black sticky substance obtained from natural asphalt. Slag ballast for railroad applications is singled out for first preference over any other type of ballast. Because of the high disposal cost as a waste material and the overall positive features of steel slag, it has been declared a useful construction material, not an industrial waste by most of the developed countries. Depending on the production method, slag accounts for 7. Steel slag material description user guidelines for waste. 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 absorption capacity 8, 11. Base material shall be manufactured from hard, durable stone or recycled building materials free of clay lumps, organic matter and other deleterious substances. Steel slag is a byproduct obtained from steel industry. The increasing demand for road construction led researchers to search for an economical and ecological pavement design.
In the construction project such as highway project for the construction of pavement lot of raw material like soil, aggregate, sand, etc. A research carried out in the usa by hunt and boyle 2000 described that in 1994, steel slag test and control sections were constructed in oregon to evaluate the use of steel slag in hot mix asphalt concrete hmac. In india, no mix design procedure is available till date for open graded mixes like bm, which has a tendency to. This article aims to present an ove rview of the applications of steel slag in the paveme nt industry, covering the regulations in different parts of the world that. Use of steel slag in construction of flexible pavements. Steel slag ingredient for concrete pavement open access. Sustainability has become an important aspect of developed countries throughout the world. The state of theart example of steel slag usage as an aggregate in concrete pavement is a situation in belgium where slag from stainless steel production is used as an aggregate in rollercompacted concrete pavement construction of a rural road with very light traffic 18. The semirigid pavement has a higher composite modulus than a true flexible pavement and begins to resemble the rigid structure in terms of how the traffic loads are distributed over the subgrade. The fundamental difference between a flexible, semirigid, and rigid pavement is the load distribution over the subgrade. Introduction to rigid pavement design ced engineering. Characteristics and uses of steel slag in building construction, 2016. Flexible pavements csir central road research institute. Ca4prs construction alternatives for pavement rehabilitation strategies, portland cement concrete pcc pavement panel.
Use of steel slag in bituminous road construction irjet. Use of plastic waste in the construction of flexible pavement is gaining importance because of the several reasons. The semirigid pavement has a higher composite modulus than a true flexible pavement and begins to resemble the rigid structure in terms of how. Use of steel slag as a new material for roads iopscience. It is generated as a residue during the production of steel.
Because of the high disposal cost as a waste material and the overall positive features of steel slag, it has been declared a useful construction material, not. To achieve this goal in concrete pavement, various substitutes were found to be replaced with natural aggregates of concrete. Use of steel slag in construction of flexible pavement. Local highway engineers have anecdotal evidence of. Pdf steel slag as a road construction material moetaz. Rapid pavement construction tools, materials and methods. Paul guyer is a registered civil engineer, mechanical engineer, fire protection engineer, and architect with over 35 years experience in the design of buildings and related. This study also shows that the use of steel slag in hma reduces the optimum bitumen content, thus making the flexible pavement construction more economical and ecofriendly. Method and process is to be developed to utilize processed steel slag aggregate in bituminous granular layers of flexible pavement were provide to road and steel industries. If you continue browsing the site, you agree to the use of cookies on this website. The stateoftheart example of steel slag usage as an aggregate in concrete pavement is a situation in belgium where slag from stainless steel production is used as an aggregate in rollercompacted concrete pavement construction of a rural road with very light traffic 18.
Characteristics and uses of steel slag in building construction. Introduction to flexible pavement design ced engineering. Use of heavyduty equipment with insulated beds, multiple axles carrying heavier loads, and automatic. It is important to use the steel slag squander affectively with specialized advancement in each field. Use of copper slag as construction material in bituminous. Evaluation of the use of steel slag in concrete trid. Applications include use of slag for erosion control, mineral filter applications, bank reinforcement, and construction of dikes, reefs and sea walls. Standard specification for urban infrastructure works 47 edition 1, revision 02 oct 2010.
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, highway shoulders, and hot mix asphalt pavement. It would appear that the optimum uses for iron blast furnace slag are in cements and base stabilization processes that take advantage of the energy invested in the suitably vitrified slag granulated or pelletized, rather than bulk aggregate applications. Journal of environmental engineering and landscape management, 2007, vol. Many researchers have investigated the use of steel slag as an aggregate in the design of asphalt concrete for the road construction. Steel slag has been utilized worldwide in waterway construction. Transportation the evolution of hauling equipment has been dramatic in recent years. In his project, strength characteristics of clayey soil with steel slag has been studied. Electric arc furnace steel slag produced from the ferrous smelting process in the. Steel slag, concrete, road pavement, compressive strength, ductility, abrasion introduction slags are the industrial byproducts of the steel production process. This project discusses the implementation, use and experience of using the following items related to rapid pavement construction. Use of steel slag in rigid pavement pandey international. Aug 08, 2016 construction of flexible pavement in short.
Use of steel slag aggregate in pavements report november 2015. Evaluation of steel slag and crushed limestone mixtures as. The term flexible pavement, used throughout this manual, includes pavement construction composed of bituminous material and aggregate mixtures or various combinations of layers of these mixtures on layers of aggregate base or subbase. 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. Use of waste plastic in construction of flexible pavement. Sustainability is the ability to use byproducts and or waste materials from industry and recycle these materials in such a way that the application of the materials provides a beneficial use in the manufacturing or construction sector. The high iron oxide content of the aggregate results in an aggregate that is very hard and very dense ssa is 2030% heavier than naturally occurring aggregates such as basalt and granite. The feasibility of utilizing of steel slag and local soil in construction of flexible pavement with variation of percentage in soil.
Introduction the iron and steel slag that is generated as a. Use of steel slag and aggregate for pavement subbase. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Steel slag aggregate ssa is a byproduct of the production of steel in an electric arc furnace. M40 cement concrete mix with a minimum flexural strength of 45 kgcm2 is recommended by the irc for use in the ccpavements of highways with heavy to very heavy traffic loads. The resources of this material are limited, and availability of. Since 1993, steel slag aggregates have been used commercially in the region for road surfacing 3. In this study the use of iron slag which is a blast furnace slag is a by pro duct of iron manufacturing industry is utilized in the construction o f different layers of pavement. Pdf use of steel waste for the application in urban paving. This investigation aims to use cs as construction material in bituminous road construction. Prior to its use as a construction aggregate material, steel slag must be crushed and screened to meet the. As the united states and the rest of the world continue to grow. Use of steel slag aggregate in pavements report november.
The incorporation of steel slag in flexible pavement construction improves its efficiency, serviceability and durability. Pavement design is the major component in the road construction. Slag ballast for railroad applications is singled out. Steel slag utilization in asphalt mixes mf 1861 page 5 expansion tests there is a large amount of steel slag used for applications such as bases, and many old steel slag heaps or fills are being built on, or used for construction purposes. Steel slag aggregate for hotmix asphalt, chip seals and stone mastic. Feasibility of expanding the use of steel slag as a concrete. Steel slag aggregate of 030mm granulation was used, to which sand of. The use of steel slag aggregate in concrete by replacing natural aggregate is a most promising concept 4. The initial applications of steel slag asphalt took place in late 1960s when the united states and canada. Sdbc are the wearing courses of flexible pavement construction. Commonly murrum soil has been used for construction of all. Should it be necessary to use the pavements at an earlier age, consideration should be given to the use of a design flexural strength at the earlier age or to the use of high early strength cement, whichever is more mix proportion or pavement thickness may have to economical.