Linz-Donawitz slag (LD Slag) is one of the alternative materials which can be used as both coarse and fine aggregate for replacement of river sand and crushed rock ballast in concrete by altering the physical form. Slag is a by-product, obtained after a desired metal has been separated from its raw ore.
Cupola slag (CS) and recycled coarse concrete (RCA) wastes from industrial processes, construction, and demolition sites are disposed of into the environment, resulting in …
Concrete Design & Production In most concrete, aggregates are more or less chemically inert. However, some aggregates react with the alkali hydroxides in concrete, causing expansion and cracking over a period of many years. This …
C. Leonelli, M. Romagnoli, in Handbook of Alkali-Activated Cements, Mortars and Concretes, 2015 6.4.2 Workability tests of geopolymers compared to OPC. Alkali-activated slag (AAS) concrete has been found to have some superior properties as compared to OPC concrete, …
The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. Various types of slag are produced: - Blast-furnace slag—The nonmetallic product, consisting essentially of silicates and aluminosilicates of calcium and of other bases, that is developed in a molten condition …
The mix design for alkali activated slag/ fly ash concrete mixes was optimized and further steel slag coarse aggregates were incorporated in the optimized alkali activated slag/ fly ash...
Mechanical Properties of Concrete Using Steel Slag Aggregate J. Saravanan, N. Suganya Materials Science, Engineering 2015 This study presents an evaluation of steel slag aggregate concrete in comparison with the conventional natural aggregate concrete. Hardened concrete consist of more than 70% aggregate due to the high… Expand 15 Save Alert
Aggregate fabrication method The aggregates were fabricated by applying the three aforementioned rapid cooling methods to molten SiMn slag. Figure 2 shows an image captured using a thermal imaging camera of aggregate fabrication via rapid cooling by air. The molten SiMn slag was dropped from above, and high pressure air was injected from below.
Among the alternative materials that several authors have studied regarding their use as partial or total substitutes for natural aggregates in the asphalt paving industry, the steel slag aggregate (SSA) and recycled concrete aggregate (RCA) from construction demolition waste (CDW) stand out.
In addition, concrete made of steel slag aggregates (SSA) exhibited satisfactory mechanical properties. SSAs were also found to be safe for reinforcement in terms of corrosion -in...
Concrete containing steel slag aggregate: Performance ... · Four concrete mixtures, made from steel slag aggregate from a Croatian steel plant 1 INTRODUCTION Due to demand for reducing overexploitation of the natural quarries, the use of the by-products from different industries has become an increasing practice in the sustainable construction industry.
Concrete made with EAF oxidizing slag as an aggregate shows good physical and mechanical properties and further study of its durability will ensure greater reliability in its …
Concrete with EAF steel slag as aggregate: A comprehensive technical and environmental characterisation L. Rondi, G. Bregoli, S. Sorlini, L. Cominoli, C. Collivignarelli, G. Plizzari Materials Science, Engineering 2016 89 PDF View 1 excerpt, cites background Save Alert Electric Arc Furnace Slag Concrete Carlo Pellegrino, F. Faleschini
The growing use of concrete in special architectural configurations and closely spaced reinforcing bars have made it very important to produce concrete that ensures proper filling ability, good …
Concrete of three different target strength, i.e. 17.23, 20.68 and 24.13 MPa was prepared using recycled brick concrete (RBC) and electric arc furnace slag (EAFS) blended as coarse...
The main aim of this research was to study the behavior of concrete and changes in te properties of concrete with steel slag replacing the use of natural aggregates.Steel slag is a by product and using it as aggregates in concrete will might prove an economical and environmentally friendly solution.
The growing use of concrete in special architectural configurations and closely spaced reinforcing bars have made it very important to produce concrete that ensures proper filling ability, good Utilisation of steel slag as an aggregate in concrete ...,18/3/2011 Therefore, mechanical properties, volume changes and corrosion susceptibility of ...
In order to estimate the possibly high rate of slag expansion, volume changes of the slag concrete were compared with volume changes of the reference concrete made of …
Performance of alkali‑activated slag‑based concrete with partial replacement of ne aggregate by Used Foundry Sand Kanta Naga Rajesh1,2 · Ponnada Markandeya Raju3 ... that inuence the bonding characteristics of aggregate in concrete. The aggregates elastic modulus is lesser than the concrete modulus, hence it is determined for the concrete ...
Electric arc furnace (EAF) slag, a by-product of steelmaking recovered after the oxidizing process, is useful when employed as aggregate in hydraulic concrete and bituminous …
The mixtures -5 to -8 were made with 45% natural aggregate and 55% EAF steel slag aggregate. The general properties of the cement, the quantity of cement, and the initial temperature of the concrete have a great influence on the …
- Granulated blast-furnace slag (GBFS)—The glassy granular material formed when molten blast-furnace slag is rapidly chilled, as by immersion in water. - Ground-granulated blast-furnace slag (GGBFS)—Now known as cement, slag—granulated blast-furnace slag that has been finely ground and that is a hydraulic cement.
The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture surface.
Compared with natural aggregate, steel slag aggregate has good wear resistance, high strength, high flexural strength and potential hydraulic activity. Due to the effect of CaO, …
"Use of slag as a replacement of conventional aggregates show much better cement paste to aggregate bond performance and provides a monolithic effect," the researchers conclude. Slag that's...
It was found that sulfur concrete made with slag as aggregate exhibited the maximum strength, i.e., about 2 times higher than that of Portland cement concrete and sulfate-resistant cement concrete. Sulfur concrete made with slag and marble waste powder showed superior mechanical performance compared to that made with river sand.
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. Slag aggregates in asphalt
In this research, laboratory investigations of the use of steel slag as a portland cement concrete (PCC) aggregate were reviewed. Much of this research took place outside the United States. Some limited field cases of the use of steel slag in pavements were found.
Experimental study on the mechanical and durability properties of concrete with waste glass powder and ground granulated blast furnace slag as supplementary cementitious materials K. Ramakrishnan, G. Pugazhmani, R. Sripragadeesh, D. Muthu, C. Venkatasubramanian Materials Science, Engineering 2017 48 View 1 excerpt, references …
It has been observed that the use of copper slag as fine aggregate could greatly increase the abrasion resistance of the cement mortar . Hwang and Laiw evaluated the …