Steel Slag as A Road Construction Material (original) (raw)
Related papers
Characteristics and Utilization of Steel Slag in Road Construction
Jurnal Teknologi, 2014
Presently, the rate of utilization of steel slag in Malaysia is rather too low compared to some advanced countries. Many studies focused on the better way to increase the usage of industrial by-products in order to ease disposal problems. Enormous quantities of steel slag were deposited in yards, causing environmental pollution. Like other metallurgical slags, steel slags exhibit a great potential to be used as aggregate in highway construction. The assessment and evaluation of this material should be based on environmental, economic and technical factors before it can be used in road construction. In terms of technical perspective, steel slags must met the required test requirements that are needed for natural aggregates used for similar purposes. The degree of slag utilization needs to be improved as an important measure to these problems. The physical and chemical properties of slag were reviewed and the various areas of its applications are highlighted. The principal setback of ...
Use of Steel Slag in the Road Construction
Roads make a crucial contribution to an economic development and growth and bring important social benefits. They are of vital important in order to make the nation grow and develop. So, by keeping this in mind, Steel Slag Road came in construction, there is no blasting, drilling or any crushing to obtain steel slag as it is material waste coming out of steel industry which is further processed and then converted in the form of aggregates material used for constructions. As per research papers we have referred we found that, the highways and other roads can become more stronger with this steel slag roads than normal conventional roads and they became more economical as steel slag is waste generated from steel industries. So, in this research we have tried to use steel slag as replacement of aggregates by some proportion and by performing tests on it we are aiming that road construction may become more economical and road becomes more durable as compared to conventional road construction.
Use of Steel Slags in Automobile Road Construction
TRANSPORT, 2012
Building and, especially, reconstruction and repairs of highways, call for the development of stone materials manufacturing industry. Increasing need for stone materials may be satisfied by a wide use of industrial waste and secondary resources. In road building, slag of ferrous and nonferrous metallurgy is one of the most popular wastes which are increasingly widespread with every year. Such slag is a valuable raw material for preparation of macadam materials and mineral binders serving as a base for asphalt concrete mixtures and manufacturing of cement emulsions, which are widely used in road paving. The research focused on the use of different types of slag in road construction in Ukraine. Possibilities of using crushed rock and sand as recrement slag of different production for preparation of asphalt concrete and cement mixtures to be used for road-base was studied, as well as the use of slag materials for construction of lower category roads. In the given work, the opportunity ...
IRJET- A REVIEW ON USE OF STEEL SLAG IN ASPHALT ROAD CONSTRUCTION
IRJET, 2021
The large amount of industrial wastes as increased year by year and disposal becomes a very serious problem. It is necessary to utilize the steel slag waste affectively with technical development in each field. This project was intended to study the effectiveness of using steel slag aggregate (SSA) in improving the engineering properties of locally produced asphalt concrete (AC) mixes. The research started by evaluating the toxicity and chemical and physical properties of the steel slag. The AC mixes was replaced by SSA. The effectiveness of the SSA was judged by the improvement in indirect tensile strength, resilient modulus, rutting resistance, fatigue life, creep modulus, and stripping resistance of the AC samples. The ductility of bitumen containing steel slag aggregates firstly increases then decreases with increasing in percentage of steel slag aggregates in mix. The test result showed a significant scope of use of steel slag, along with the bitumen as a binder.
Replacement of Natural Coarse Aggregate by Industrial Steel Slag In Road Construction
International Journal of Engineering Development and Research, 2019
Due to growing environmental awareness, as well as stricter regulations on managing industrial waste, the world is increasingly turning to researching properties of industrial waste and finding solutions on using its valuable component parts so that those might be used as secondary raw material in other industrial branches. Although steel slag is yet considered a waste and is categorized in industrial waste catalogues in most countries in the world, it is most definitely not waste, neither by its physical and chemical properties not according to data on its use as valuable material for different purposes. Moreover, since the earliest times of the discovery and development of processes of steel and other metals production, slag as by-product and is used for satisfying diverse human needs, from the production of agricultural and agro-technical agents to production of construction elements. This study demonstrates the possibilities of use of industrial steel slag as natural coarse aggregate in the road construction. Considering the specialty of physical and chemical properties of industrial slag and a series of possibilities for its use in road construction as a replacement of natural coarse aggregates.
Clean Technologies and Environmental Policy, 2016
Slag is an industrial waste generated during the steelmaking process. Electric arc furnace slag (EAFS) and ladle furnace slag (LFS) are both produced at different stages of steelmaking process, respectively, in electric arc furnaces and refining ladle furnaces. As part of this research, an extensive suite of engineering and environmental tests were undertaken on steel slag aggregates to evaluate their potential usage as road construction materials. The engineering assessment included particle size distribution, hydrometer, organic content, flakiness index, Atterberg limits, particle density, water absorption, pH, minimum and maximum dry densities with a vibrating table, modified compaction, California bearing ratio (CBR) and Los Angeles abrasion tests. In addition, a suite of environmental tests comprising total and leachable heavy metal tests were undertaken on both types of steel slag aggregates. From an environmental perspective, EAFS and LFS were found to pose no environmental risks for use as aggregates in roadwork applications. The engineering properties of LFS aggregates with its satisfactory geotechnical and environmental results, particularly its high CBR values, indicated that the material was ideal for usage as a construction material in roadwork applications such as pavement base/subbases and engineering fills. EAFS, with its comparatively lower CBR value, was found to be only suitable to use as a construction material for pavement subbases and engineering fills. The usage of steel slag aggregates in roadwork applications would bring about a practical end-of-life alternative for their sustainable reuse and possibly divert large amount of these waste materials from landfills.
Performance of Steel Slag in Highway Surface Course
Jurnal Teknologi, 2014
As the quantity of disposing waste material is increasing in road construction, researchers are exploring the use of alternative materials which could preserve natural sources and save the environment. One of these sustainable materials is steel-furnace slag which is a synthetic aggregate produced as a consequence of the electric arc furnace (EAF). Steel slag was selected due to its characteristics, which are almost similar to conventional aggregates, and the fact that it is easily obtainable as a by-product from the steel industry. The same gradations of mixtures were produced using normal crushed aggregate as control samples. The experimental research has been articulated in a preliminary study of the chemical, leaching, physical, and mechanical properties of the electric arc furnace (EAF) steel slag. In addition, the outstanding benefits of steel slag were highlighted. All the mixtures with EAF steel slag have satisfied the requisites for acceptance in the road sector technical standards, thus resulting as suitable for use in the construction of road infrastructures.
UTILIZATION OF WASTE STEEL SLAG AS A SUBTITUTE FOR RUBBLE STONE IN PAVEMENT ROAD
Pavement road is an indispensable infrastructure for social, economic and cultural activities. As the second largest city in Indonesia, Surabaya needs a convenient and safe road segment to serve the activities of its society. PT Hanil Jaya Steel is one of the steel smelting factories in Surabaya which produce waste slag. The utilization of waste slag is necessary to minimize the occurrence of waste accumulation that has a negative impact on the environment. Hence, this study conducted experiments using steel slag waste from PT Hani Jaya Steel as a substitute for gravel. The experiment's result is expected to improve the quality of the mix and reduce the impact of environmental pollution that occurs due to the accumulation of waste slag. This research aims to determine the effect of gravel slag on the characteristics of asphalt concrete mixture. This research uses experimental method which has an experiment to get the result, thus it will be seen the utilization of steel slag gravel on asphalt concrete construction with slag variation of 0%, 10%, 20%, 30%, 40% and 50%. Checking of standard aggregate or aggregate slag and asphalt should follow procedures in accordance with SNI. The results of examination and analysis of the concrete asphalt mixture's characteristic using variation of steel slag grade showed an increase of mixed concrete asphalt performance. Mixing stability using steel slag gravel tends to increase with the optimum limit of 30%, and then decrease to 50%. The highest stability was achieved at 6% of bitumen content with the optimum slag rate of 30%. The value of mixing flexibility is expressed by Marshall Quotient (MQ) which indicates that its value tends to increase as the slag gravel increases in the asphalt concrete mixture, and make the mixture stiffer as the addition of slag gravel to the highest limit of 30% with asphalt content of 5% and afterward, will decrease. Durability has many scopes including the durability associated with the void in the mix (VIM) and the abrasion value of the coarse aggregate mixture. The value of VIM in this study has increased along with the increase of glycerol Utilization of Waste Steel Slag as A Subtitute For Rubble Stone In Pavement Road content in the mixture. The optimum durability value occurred at 30% slag gravel with 6% asphalt content.
Steel Slag Concrete for Pavement Construction
2016
Steel Slags are by-products of Steel Industry using the Electric Arc Furnace method for steelmaking. This methodology is widely used in South Europe where the research on steel slag applications in concrete has been developed. In this paper, the properties in fresh and hardened state of concrete for pavements are described as well as a pilot application of steel slag concrete in road pavement. Based on the results it is obvious that the use of steel slags in pavement application is very advantageous from technical point of view. Basic desirable characteristics are enhanced or significantly increased, such as the compressive strength, ductility and resistance to abrasion. Furthermore, the anti slipping properties of the pavements are considerably enhanced. A comparison of conventional concrete pavement with steel slag concrete is made based on the cost and environmental footprint considerations, taking into account the maintenance cost during the service life of the pavement.
Steel slag as valuable aggregate in eco\u2013friendly mixtures for asphalt pavements
2018
Research and application concerning the use of environmentally friendly materials and technologies in road pavements have reached high relevance mainly due to the increasing public consciousness addressed to environmental protection and preservation. In this sense, the possible use of steel slags for construction applications (including road pavements) has a strategic importance to convert a waste into a valuable resource, taking also into account that ferrous slag may have a lower potential to negatively impact the environment. The environmental sustainability of asphalt mixtures prepared with steel slags can be further enhanced adopting the so-called Warm Mix Asphalt (WMA) technology. In fact, WMA is an asphalt concrete modified with additives that can be produced and applied at lower temperatures than the traditional Hot Mix Asphalt (HMA), thus reducing energy consumption, gas and fume emissions. Given this background, the paper illustrates a part of a wide research study aimed a...