Troska iz procesa proizvodnje čelika elektropećnim postupkom kao mineralni agregat u cestogradnji

undergraduate thesis

• Title (english): Slag from the EAF process as mineral aggregate in road construction
• Author: Magdalena Selanec
• Mentor: Tahir Sofilić (mentor)
• Committee member: Mirko Gojić (predsjednik povjerenstva)
• Committee member: Tahir Sofilić (član povjerenstva)
• Committee member: Ivan Brnardić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Metallurgy; Sisak
• Defense date and country: 2015-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy; Process Metallurgy

Abstract

Uporaba proizvodnih otpada i/ili nusproizvoda u građevinskoj industriji, a posebno u
cestogradnji, jedan je od čimbenika očuvanja prirodnih neobnovljivih izvora mineralnih agregata i istovremenog sprječavanja neželjenog utjecaja industrijskih procesa na okoliš u kojima ti otpadi i/ili nusproizvodi nastaju.
Tako je posljednjih tridesetak godina u svijetu značajno porasla primjena proizvodnih
otpada i/ili nusproizvoda u cestogradnji, posebno u području primjene otpadnih materijala kao što su oštećeni asfaltni slojevi, lomljeni betoni, visokopećne i čeličanske troske, leteći pepeli iz termoenergetskih postrojenja na ugljen i sl.
Među proizvodnim ostatcima metalurške industrije, koji mogu biti razvrstani kao
otpadi i/ili nusproizvodi, posebno značajno mjesto zauzimaju troske iz proizvodnje željeza i čelika, koje su od najranije povijesti nalazile svoju ulogu kao sekundarne sirovine i predstavljale nusproizvod procesa u kojima su nastajale u skladu sa suvremenom definicijom ovog pojma. Stoga se posljednjih nekoliko desetljeća intenzivno istražuju sve mogućnosti tzv. bezdeponijskog zbrinjavanja troske na načelima ekonomske isplativosti i ekološke prihvatljivosti.
U ovom radu su prikazani podaci o čeličanskoj trosci, čija se sve šira uporaba u
cestogradnji i temelji na njenim fizikalno – kemijskim i mehaničkim karakteristikama. Uz podatke o uporabi ove troske u svjetskoj i u europskoj cestogradnji, prikazani su i podaci o
istraživanjima mogućnosti primjene domaće elektropećne troske kao cestograđevnog agregata.

Abstract (english)

The use of production waste and/or by-products in the construction industry, especially in the road construction, is the one of the factors to preserve the natural nonrenewable mineral aggregates, and simultaneously prevent unwanted impacts of industrial
processes on the environment in which these wastes and/or by-products are formed.
In the last thirty years the world application of production waste and/or by-products in road construction, especially of waste materials such as damaged asphalt layers, crushed concrete, blast furnace and steel slag, fly ash from coal thermal power plants etc, has been significantly increased.
Among the residues of the production from the metallurgical industry, which can be classified as waste and/or by-products, particularly significant is the slag from iron and steel production, which has seen known as a secondary raw material from the earliest history, and
represents a by-product of the process which were created according to the modern definition
by this term. Therefore, in the past few decades all possibilities for no-landfill disposal of slag
on the principles of economic viability and environmental acceptability have been intensively studied.
This paper presents data of steel slag, which widespread use in road construction based on its physical - chemical and mechanical properties. In addition to the data on the use application of slag in the World and for the European road construction, the data on research possibilities of domestic EAF slag use application as a road construction aggregates are
presented.

• Keywords: troska; proizvodni otpad; nusproizvodi; cestogradnja; agregat
• Keywords (english): slag; production waste; by-products; road construction; aggregate
• Language: croatian
• URN:NBN: urn:nbn:hr:115:637628
• Study programme: Title: Undergraduate study program Metallurgy; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2015-11-06 09:53:33