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Properties modeling of cement composites made of fly ash

Modelovanje svojstava maltera primenom elektro-filterskog pepela

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2014
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Authors
Jevtić, Dragica
Zakić, Dimitrije
Savić, Aleksandar R.
Radević, Aleksandar
Article (Published version)
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Abstract
There is a number of advantages when using fly ash in cement composites. Fly ash is known for decades for its' pozzolanic properties, and thus it is mostly used as an mineral admixture in the process of production of cement. This way benefits like saving energy and reduction of CO2 emission are obtained. This paper presents the results of research conducted on cement composites made with fly ash from Serbia, added as a partial substitute for cement. The properties of fresh and hardened cement composites were studied with replacement of different mass quantites of cement. Studies have shown that with the moderate amount of fly ash (up to 30%) it is possible to obtain satisfactory physical and mechanical properties of cement composites, both in fresh and hardened state.
Postoji niz prednosti upotrebe elektrofilterskog pepela u cementnim kompozitima. Elektrofilterski pepeo je poznat decenijama po svojim pucolanskim svojstvima i iz tog razloga se u najvećoj meri upotrebljava kao mineralni dodatak u procesu proizvodnje cementa. Na taj način se ostvaruju prednosti u uštedi energije i u smanjenju emisije CO2. U radu su prikazani rezultati ispitivanja sprovedenih na cementnim kompozitima sa elektrofilterskim pepelom iz Srbije, u cilju delimične zamene standardnog cementa. Svojstva svežih i očvrslih cementnih kompozita proučavana su sa zamenom različitim količinama standardnog cementa. Istraživanja su pokazala da se uz umerenu zamenu količine cementa elektrofilterskim pepelom (do 30%) mogu postići zadovoljavajuća fizičko-mehanička svojstva cementnih maltera, kako u svežem tako i u očvrslom stanju.
Keywords:
fly ash / mortars / cement / physical and mechanical properties / elektrofilterski pepeo / malteri / cement / fizičko-mehaničke karakteristike
Source:
Zaštita materijala, 2014, 55, 1, 39-44
Publisher:
  • Inženjersko društvo za koroziju, Beograd
Projects:
  • Utilization of by-products and recycled waste materials in concrete composites in the scope of sustainable construction development in Serbia: investigation and environmental assessment of possible applications (RS-36017)

DOI: 10.5937/ZasMat1401039J

ISSN: 0351-9465

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URI
http://grafar.grf.bg.ac.rs/handle/123456789/600
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  • Radovi istraživača / Researcher's publications
  • Катедра за материјале и конструкције
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