Use of Steel Slags in Automobile Road Construction (original) (raw)
Related papers
Steel Slag as A Road Construction Material
Jurnal Teknologi, 2015
Steel slag is a byproduct obtained from steel industry. 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 an industrial waste by most of the developed countries. Successively, it is recycled as an aggregate for the construction of roads, soil stabilization, and base and for the surfacing of flexible pavement. Despite this, a large amount of steel slag generated from steel industries is disposed of in stockpiles to date. As a result, a large area of land is being sacrificed for the disposal of this useful resource. Many researchers have investigated the use of steel slag as an aggregate in the design of asphalt concrete for the road construction. The best management option for this by product is its recycling. This leads to reduction of landfills reserved for its disposal, saving the natural resources and attaining a potential environment. The purpose of this paper is to review the engineering properties of steel slag and its utilization for road construction in different ways.
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 ...
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 metallurgical slag is still today considered 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 iron and other metals production, slag as by-product is used for satisfying diverse human needs, from the production of medicines and agro-technical agents to production of cement and construction elements. This paper demonstrates the possibilities of using slag as one small part of industrial waste arising from the metallurgical processes of iron and steel production. Considering the specificity of physical and chemical properties of metallurgical slags and a series of possibilities for their use in other industrial branches, this paper pays special attention to slag significant trough the history and its using in the road construction.
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.
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.
Steel Slag Application in Croatian Asphalt Mixture Production
2010
This paper demonstrates the results of examines the possibilities of using steel slag in other industries, with a special focus on using the slag as substitute for natural mineral aggregates in the production of asphalt mixtures in road construction. Within the framework of this work, test fields have recently been constructed. The existing wearing course was replaced by an AC 11 type of asphalt, in one lane with conventional natural carbonate aggregate and in the other two lanes with slag aggregate from CMC Sisak d.o.o. (0/4, 4/8, 8/11). After construction of the test field using EAF slag aggregate it was found that no problems has been encountered in the designing of the mixture or in the placing of the asphalt in the test field.
Technology of Slag Utilization in Highway Construction
Research and applied utilization activities for the increased use of ferrous and nonferrous slags in civil and highway construction are presented. The overall use of blast furnace slag is relatively well known for a range of highway construction applications from granular base to supplementary cementitious materials. In contrast to blast furnace slag, which is volumetrically stable and straightforward in its construction uses, steel slag contains hydratable oxides that can result in volumetric instability that must be dealt with through appropriate steel slag aging, testing and quality control to ensure its appropriate use in highway construction. Particular care must be taken to prevent potential steel slag expansive behaviour in confined applications. Quality requirements and guidelines on steel slag expansivity to further the use of appropriate quality steel slags, with demonstrated acceptable performance, in aggregate and cementitious applications are outlined. There is a full range of proven civil and highway construction uses-from aggregate to cementitious materials-for copper, nickel and phosphorus nonferrous slag. The use of air-cooled nickel slag is presented, based mainly on practical highway experience and in the Dominican Republic with ferronickel slag. It has been shown in the laboratory, and more importantly during highway construction, that air-cooled, crushed nickel slag can be an excellent aggregate in granular base, engineered fill and hot-mix asphalt. There is a good potential for increased ground, granulated copper and nickel slags use as supplementary cementitious materials that is being developed, which takes advantage of the 'latent energy' content. The scope of a new technical text on the technology of slag utilization is reflected throughout to provide a practical context for the highway engineer.
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.
Utilization of Slag in Partial Replacement of Road Aggregate
The depletion of resources is a major issue in the civil engineering from which the road construction cannot be excluded. Because of the extensive road construction, the aggregate demand is huge and causing lots of blasting, quarrying, crushing etc is carried out and are consuming energy as well, and the aggregate materials are depleting fast becoming short in supply. On the other hand, industrial by-products and locally available materials are causing environmental and dumping problems, however these can have a application in road constructions. In this study we undergo series of tests on two types of materials one is steel slag, and the other is locally available gravel in the sub-bases. The study concerns chemical composition, phase composition, toxic metals present in the slag and its leaching water, whereas its gradation and other physical properties are observed by undergoing tests. Partial amount conventional crushed aggregates are mixed in proportions to satisfy the desired grading mandatory by the Ministry of Road Transport and Highways. The percentage of the slag and gravel that can be used in sub-base layer is found to be 80% and 50% respectively. In case of gravel, cement was also used in required quantity to get the desired strength. It is observed that both the steel slag and hard gravel have excellent properties and can be used in the road base and sub-base applications.