The Scientific Use Of Slag


Use of waste copper slag, a sustainable material ...

Physical properties. Copper slag grains have a color of black glassy type and a fineness modulus of 3.5. The hardness is about 7 Moh's scale. Other typical physical properties are given in Table 2.In order to use copper slag as a mineral admixture, it was necessary to carry out an experimental study associating grinding time, average diameter, and pozzolanic activity assessed in mortars [].

Get More

Scientific Notation Calculator

Scientific notation is a way to express numbers in a form that makes numbers that are too small or too large more convenient to write. It is commonly used in mathematics, engineering, and science, as it can help simplify arithmetic operations. In scientific notation, numbers are written as a base, b, referred to as the significand, multiplied ...

Get More

Use of Al-Killed Ladle Furnace Slag in Si-Killed Steel ...

Slag is a by-product formed in most metallurgical process. During the steelmaking process a large amount of slag is produced, which becomes a source of waste, which in many instances is land filled. Such areas filled with waste materials have become a significant source of pollution. Slag recycling is then becoming important in recent years.

Get More

[PDF] Use of steel slag as a granular material: volume ...

The theoretical equation for predicting volume expansion of steel slag is deduced based on both chemical reaction and physical changes of free lime in steel slag during the hydration process. Laboratory volume expansion testing is conducted to compare the results with the theoretical volume expansion. It is proved that they correlated well. It is furthermore experimentally proved that certain ...

Get More

Electric Arc Furnace Slag Understanding Human Health Risks ...

The rock-like material formed during the process of electric arc furnace steelmaking is referred to as EAF slag. An ad hoc committee will assess human health risks associated with the unencapsulated use (e.g., loose ground cover material for landscaping and driveways) of EAF slag.

Get More

[PDF] Use of blast furnace granulated slag as a substrate ...

The potential use of the slag reed bed with higher P-removal capacity for secondary and tertiary treatment under the field conditions was indicated, however, the P-sorption isotherms obtained under the laboratory conditions could not be used favorably to determine the longevity of the reedBed in terms of P-retention. Research was conducted at Middle East Technical University (METU), Ankara ...

Get More

A Close Look at the Function of Slang – Undercurrents

The emergence of teenage culture and the acceptability of their slang use made it more acceptable for middle-class women to use slang. Slang "came to be considered an important part of speech" which was "a significant aspect of performing modern middle-class femininity", and it was "promoted and reinforced by women's magazines ...

Get More

The Use of Slang - PHDessay.com

268. The usage of slang can be seen in both daily life and art. In daily life, there are three interpersonal functions of slang words: pursuing selfidentity, expressing emotive feeling and achieving politeness. Firstly, people use slang words to show their self-identity. Obviously, different social groups have their own distinct slang words ...

Get More

Utilization of Blast Furnace Slag, Steel ... - Scientific.Net

The study on the use of blast furnace slag, steel slag and fly ash as raw materials to produce cement clinker has been carried out in the present investigation. The burnability of raw meal was determined by the linear shrinkage and free lime content of clinkers sintered at different temperatures. The microstructrue and properties of raw meal and clinker were investigated by the means of ...

Get More

Use of Slags in the Production of Portland Cement Clinker ...

12%The results given in Table 3 show that the use of slags in raw materials instead of clay positively affects the activity of clinkers. The strength improvement within a 28-day interval at full replacement of a clay component with slag made 62%. The heat burning input of limestone-slag mixes may be reduced by over 0.85 mJ/t.

Get More

Fly ash and slag - ScienceDirect

The use of cement clinker dust and cement filter dust in the amount of 4% was an effective method of activating the process of hardening and increasing the strength of slag cement CEM III/A,B,C according to EN 197-1, with the addition of clinker dust cement being more effective.

Get More

Use of slag in the EU | mike nkosi's blog

Use of slag in the EU. Posted on 26/05/2015. by Mikey. For over 25 years, despite the general use of slag products in construction, there has been an on-going argument about whether slag is a waste or a by-product. Still today, the situation concerning the classification of slag is not uniform within European member states.

Get More

Materials | Free Full-Text | Analysis of the Possibility ...

In Europe there are nearly 500 incinerators. There are over 2000 of them in the world. It is estimated that the combustion of 1 ton (Mg) of waste produces about 250–300 kg of slag. Due to the large amounts of this waste, the construction industry's demand for raw materials and the reduction of CO2 emissions, research was undertaken to use slags as a cement component.

Get More

(PDF) The Use of Steel Slag in Asphaltic Mixture

The use of steel slag in asphalt mixture was also addressed by Hassan & Khabiri (2007) and Norman et al. (1992) based on Marshall and stability tests according to European Standard EN 12697-34 (2012).

Get More

INTERNATIONAL SCIENTIFIC CONFERENCE CIBv 2010 12 – 13 ...

slag, starting from 1880, the slag obtained in Bessemer or Thomas furnaces is used as phosphate fertilizer; in 1909, in Germany, is published the first standard on the use of blast furnace slag in cement industry, this are just some of the events gleaned from the evolution of "knowledge" of metallurgical slag.

Get More

[PDF] USE OF GRANULATED BLAST FURNACE SLAG AS FINE ...

This paper investigates the possibility of utilizing Granulated Blast Furnace Slag (GBFS) as a sand substitute in cement mortar, in order to reduce environmental problems related to aggregate mining and waste disposal. In this investigation, cement mortar mix 1:3 and GBFS at 0, 25, 50, 75 and replacement to natural sand for constant w/c ratio of 0.5 is considered.

Get More

Use of steel slag as a granular material: Volume expansion ...

The use of steel slag has been restricted because free CaO present in steel slag causes a severe volume expansion during the hydration process (Wang, 2010;Salihoglu and Pinarli, 2008), which can ...

Get More

Slag: From By-product to Valuable Construction Material

Slag: From By-product to Valuable Construction Material. By Stephen Dietz 07.29.2014. Slag is a by-product of the metallurgical smelting process. Slag has a double role: it permits removal of impurities, known as gangue, from the melt by forming oxides. It also allows exchange reactions with the liquid metal, permitting control of the process ...

Get More

Scientific Cooperations Journal of Civil Engineering and ...

physically makes sense to use slag in pavement layers and to understand the environmental implications which include the reduction of materials use, thus yielding cost and energy savings. Scientific Cooperations Journal of Civil Engineering and Architecture, Vol. 2, Issue 1, Feb. 2016 28

Get More

Slag Aggregate - an overview | ScienceDirect Topics

Collaborations of researchers, slag producers and processors, government agencies, environment regulators, and contractors can create good results for the novel use of slag. Guidelines, quality control, and compliance rules for order acceptance and delivery of slag products are critical for the practical use of slag foundation and geotechnical ...

Get More

(PDF) The use of steel slag in concrete - ResearchGate

steel slag as a substitute for nat ural aggregate with the maximum grain size of 12.5 mm and concrete. based on natural filler – l imestone are presented in [2]. The results of a research, where ...

Get More

USE OF COPPER SLAG AS CONSTRUCTION MATERIAL IN …

gravity of copper slag, zinc slag and steel slag varied in the range of 2.75 – 3.6[5] Kajal et al (2007) Study present the use of waste plastic and copper slag in hot bituminous mix to enhance pave-ment performance, bituminous mixes were prepared by mixing of …

Get More

[PDF] Use of Ultrafine Slag in High Strength Concrete ...

This paper presents the effect of Ultrafine Slag in high strength concrete with cement replacement of 5%, 10%, 15% and 20%. Nowadays high strength concrete generally made with Ordinary Portland Cement. In this investigation Portland Pozzolana Cement (PPC) Fly ash based was used to make concrete more environmental friendly. In this experiment five mixes were prepared in which one mix …

Get More

Steel slag amendment impacts on soil microbial communities ...

The hypotheses that may primarily determine how the slag amendment affects rhizosphere microbial community and ecosystem services are, (1) as a rich source of fertilizer components, the slag ...

Get More

Slag Definition & Meaning | Dictionary.com

Slag definition, the more or less completely fused and vitrified matter separated during the reduction of a metal from its ore. See more.

Get More

Use of Angang Slag for the Production of ... - Scientific.Net

The characteristic of Angang blast furnace slag was studied by X-ray fluorescence spectrometry, DSC, X-ray diffraction and SEM. SiO2-Al2O3-CaO system glass-ceramics have been obtained successfully from slag with other additives. The properties of slag-based glass-ceramics were analyzed in this paper. It has been found that nucleation temperature is in the range of 600~700 °C, and ...

Get More

Investigation of the Oxidation ... - Scientific Reports

In the current study, the thermodynamics of the slag-metal equilibrium reaction between Inconel 718 Ni-based alloy and CaF2-CaO-Al2O3-MgO-TiO2 …

Get More

Metallurgical Slags - Thermo Fisher Scientific

XRF of slag. Scientists at Thermo Fisher Scientific analyzed metallurgical slag samples with the Thermo Scientific™ ARL™ QUANT'X EDXRF Spectrometer. Applications of XRF in industrial process control are calibrated using empirical calibrations on the basis of primary or secondary standards. The results were obtained using a multi-variable ...

Get More

The Use of Steel Slag in Asphaltic Mixture | Scientific.Net

Abstract: The amount and nature of filler in asphaltic concrete mixes significantly affect its design and performance. The use of Palm oil fuel ash (POFA) as filler in asphaltic concrete has been studied with varying degree of success, this study therefore, evaluates the effect of POFA on the indirect tensile strength of asphaltic concrete AC 14.

Get More

Scientific Research and Essays - chemical properties of ...

The aim of this study was to investigate the effects of usage of Ca - containing metallurgical slag from Steel factory from Smederevo, Republic of Serbia (owned by U.S. Steel), through vegetative experiments performed in semi-controlled conditions on two types of acid soils (Lessivated Cambisol and Pseudogley). The studied parameters were chemical properties of soils and chemical composition ...

Get More

(PDF) Use of Fly Ash and Slag in Concrete: A Best Practice ...

These are general statements base d on a review of scientific literature that . ... However, it should be noted that for some type CH fly ashes and slag, even the use of 65% .

Get More

CRITERIA FOR THE USE OF STEEL SLAG AGGREGATES IN …

Abstract. The successful incorporation of steel slag as aggregates in construction products requires the consideration of certain issues. Firstly, as steel slag is an industrial byproduct until recently disposed in landfills, the question is whether it is suitable for use in construction.

Get More

Implications of Direct Use of Slag from Ironmaking ...

The slag's stability over time is an important parameter that influences the quality of the final product (Fig. 1).With an average of more than 30 wt.% (hbox {TiO}_{2}) dissolved within, ironmaking slags from titanomagnetite concentrates present concentrations of the target metal cations higher than common industrial electrolytes such as cryolite.26 From such a standpoint, the high ...

Get More