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dc.contributor.authorVykoukal, Michal
dc.contributor.authorBurian, Alois
dc.contributor.authorPřerovská, Markéta
dc.contributor.authorBajer, Tomáš
dc.contributor.authorBeňo, Jaroslav
dc.date.accessioned2019-07-22T09:59:30Z
dc.date.available2019-07-22T09:59:30Z
dc.date.issued2019
dc.identifier.citationArchives of Foundry Engineering. 2019, vol. 19, issue 2, p. 49-54.cs
dc.identifier.issn1897-3310
dc.identifier.issn2299-2944
dc.identifier.urihttp://hdl.handle.net/10084/137819
dc.description.abstractThe article deals with the gas development of the geopolymer binder system hardened by heal and provides the comparison with organic binder systems. The GEOPOL (R) W technology is completely inorganic binder system, based on water. This fact allow that the gas generated during pouring is based on water vapour only. No dangerous emissions, fumes or unpleasant odours are developed. The calculated amount of water vapour generated from GEOPOL (R) W sand mixture is 1.9 cm(3)/g. The measured volume of gas for GEOPOL (R) W is 4.3 cm(3)/g. The measurement of gas evolution proves that the inorganic binder system GEOPOL (R) W generates very low volume of gas (water vapour) in comparison with PUR cold box amine and Croning. The amount of gas is several times lower than PUR cold box amine (3.7x) and Croning (4.2x). The experiment results are consistent with the literature sources. The difference between the calculated and the measured gas volume is justified by the reverse moisture absorption from the air after dehydration during storing and preparing the sand samples. Minimal generated volumes of gas/water vapour brings, mainly as was stated no dangerous emissions, also the following advantages: minimal risk of bubble defects creation, the good castings without defects, reduced costs for exhaust air treatment, no condensates on dies, reduced costs for cleaning.cs
dc.language.isoencs
dc.publisherPolska Akademia Nauk, Oddział PAN w Katowicachcs
dc.relation.ispartofseriesArchives of Foundry Engineeringcs
dc.relation.urihttps://doi.org/10.24425/afe.2019.127115cs
dc.subjectgeopolymer bindercs
dc.subjectGEOPOL®cs
dc.subjectgas evolutioncs
dc.subjectcorecs
dc.subjectenvironmentcs
dc.titleGas evolution of GEOPOL (R) W sand mixture and comparison with organic binderscs
dc.typearticlecs
dc.identifier.doi10.24425/afe.2019.127115
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume19cs
dc.description.issue2cs
dc.description.lastpage54cs
dc.description.firstpage49cs
dc.identifier.wos000469410900009


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