{"id":{"repo_id":"greece","oai_identifier":"oai:10442/1517"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/1517","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΜΗΧΑΝΙΣΜΟΣ ΘΕΙΩΣΗΣ ΜΑΡΜΑΡΟΥ ΣΕ ΧΑΜΗΛΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ ΚΑΙ ΧΑΜΗΛΕΣ ΣΥΓΚΕΝΤΡΩΣΕΙΣ ΣΕ ΔΙΟΞΕΙΔΙΟ ΤΟΥ ΘΕΙΟΥ ΚΑΙ ΠΡΟΣΤΑΣΙΑ ΑΠΟ ΤΗ ΘΕΙΩΣΗ ΚΑΙ ΤΗΝ ...","abstract":"THE OBJECT OF THE PRESENT WORK HAS BEEN THE INVESTIGATION OF THE SULFATION MECHANISM AT LOW SO2 CONCENTRATION AND LOW TEMPERATURES AND THE TESTING OF NEW PROTECTIVE MATERIALS. WE HAVE MEASURED CONTINIOUSLY (QUARTZ, SPIRAL MICROBALANCE) THE SULFATION RATE ON POWDERED CACO3 P.A AT 475 C WITH VARIATION OF THE SO2 CONCENTRATION BETWEEN 15 VOL% AT CONSTANT CONCENTRATION OF O2 (31 .2 VOL%) BY PROPER CONTROLLING OF THE N2 CONCENTRATION. FURTHER WE HAVE ESTIMATED THE ACTIVATIONENERGIES BY VARYING THE TEMPERATURE BETWEEN 15-60% C IN A FIXED ENVIRONMENT OF50% SO2, 50% AIR, SATURATED WITH WATER VAPOUR AND BY MEASURING THE SULFATION RATE ON POWDERED CACO3 P.A CONTINIOUSLY (QUARTZ SPIRAL MICROBALANCE) AND ON MARBLE POWDER PELLETS DISCONTINOUSLY (REPEATED WEIGHINGS). FINALLY WE HAVE TESTED NEW PROTECTIVE SYSTEMS TO RETARD THE DIFFUSION OF CA2+ TO THE CORROSIVE MEDIUM. FOR THIS PURPOSE WE HAVE USED THE POLYMERS: CHLORINATED RUBBER, PERFLUOROPOLYETHER, ACRYLIC AND EPOXY RESIN, WITHOUT AND WITH PIGMENTS, SUCH AS AL2(SO4)3.18H20, CRYSTALVIOLET AND RHODAMIN-B.","abstract_html":"THE OBJECT OF THE PRESENT WORK HAS BEEN THE INVESTIGATION OF THE SULFATION MECHANISM AT LOW SO2 CONCENTRATION AND LOW TEMPERATURES AND THE TESTING OF NEW PROTECTIVE MATERIALS. WE HAVE MEASURED CONTINIOUSLY (QUARTZ, SPIRAL MICROBALANCE) THE SULFATION RATE ON POWDERED CACO3 P.A AT 475 C WITH VARIATION OF THE SO2 CONCENTRATION BETWEEN 15 VOL% AT CONSTANT CONCENTRATION OF O2 (31 .2 VOL%) BY PROPER CONTROLLING OF THE N2 CONCENTRATION. FURTHER WE HAVE ESTIMATED THE ACTIVATIONENERGIES BY VARYING THE TEMPERATURE BETWEEN 15-60% C IN A FIXED ENVIRONMENT OF50% SO2, 50% AIR, SATURATED WITH WATER VAPOUR AND BY MEASURING THE SULFATION RATE ON POWDERED CACO3 P.A CONTINIOUSLY (QUARTZ SPIRAL MICROBALANCE) AND ON MARBLE POWDER PELLETS DISCONTINOUSLY (REPEATED WEIGHINGS). FINALLY WE HAVE TESTED NEW PROTECTIVE SYSTEMS TO RETARD THE DIFFUSION OF CA2+ TO THE CORROSIVE MEDIUM. FOR THIS PURPOSE WE HAVE USED THE POLYMERS: CHLORINATED RUBBER, PERFLUOROPOLYETHER, ACRYLIC AND EPOXY RESIN, WITHOUT AND WITH PIGMENTS, SUCH AS AL2(SO4)3.18H20, CRYSTALVIOLET AND RHODAMIN-B.","abstract_has_math":false,"creators":["Καλιφατίδου, Ελευθερία"],"institution":"Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1990,"date_issued":"1990","date_published":"1990","updated_at":"2026-07-24T02:24:59Z","subjects":["ANTICORROSIVE POLYMER COATINGS","Atmospheric pollution","CORROSION OF BUILDING MATERIALS","Marble","Monuments","Pigments","Semiconductors","STONE CONSERVATION","SULFATION","SULFUR DIOXIDE","ΑΝΤΙΔΙΑΒΡΩΤΙΚΑ ΠΟΛΥΜΕΡΗ ΕΠΙΚΑΛΥΠΤΙΚΑ","Ρύπανση, Ατμοσφαιρική","ΔΙΑΒΡΩΣΗ ΔΟΜΙΚΩΝ ΥΛΙΚΩΝ","Διοξείδιο του θείου","Ημιαγωγοί","Θείωση","Μάρμαρο","Μνημεία","ΠΙΓΜΕΝΤΑ","ΣΥΝΤΗΡΗΣΗ ΠΕΤΡΑΣ","Engineering and Technology","Chemical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Χημικού Μηχανικού"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1517"],"render_values":[{"text":"10.12681/eadd/1517","href":"https://doi.org/10.12681/eadd/1517","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/1517","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Καλιφατίδου, Ελευθερία"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1990"]},{"key":"dc:publisher","label":"Institution","values":["Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)","National Technical University of Athens (NTUA)"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["ANTICORROSIVE POLYMER COATINGS","Atmospheric pollution","CORROSION OF BUILDING MATERIALS","Marble","Monuments","Pigments","Semiconductors","STONE CONSERVATION","SULFATION","SULFUR DIOXIDE","ΑΝΤΙΔΙΑΒΡΩΤΙΚΑ ΠΟΛΥΜΕΡΗ ΕΠΙΚΑΛΥΠΤΙΚΑ","Ρύπανση, Ατμοσφαιρική","ΔΙΑΒΡΩΣΗ ΔΟΜΙΚΩΝ ΥΛΙΚΩΝ","Διοξείδιο του θείου","Ημιαγωγοί","Θείωση","Μάρμαρο","Μνημεία","ΠΙΓΜΕΝΤΑ","ΣΥΝΤΗΡΗΣΗ ΠΕΤΡΑΣ","Engineering and Technology","Chemical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Χημικού Μηχανικού"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1517","http://hdl.handle.net/10442/hedi/1517"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE OBJECT OF THE PRESENT WORK HAS BEEN THE INVESTIGATION OF THE SULFATION MECHANISM AT LOW SO2 CONCENTRATION AND LOW TEMPERATURES AND THE TESTING OF NEW PROTECTIVE MATERIALS. WE HAVE MEASURED CONTINIOUSLY (QUARTZ, SPIRAL MICROBALANCE) THE SULFATION RATE ON POWDERED CACO3 P.A AT 475 C WITH VARIATION OF THE SO2 CONCENTRATION BETWEEN 15 VOL% AT CONSTANT CONCENTRATION OF O2 (31 .2 VOL%) BY PROPER CONTROLLING OF THE N2 CONCENTRATION. FURTHER WE HAVE ESTIMATED THE ACTIVATIONENERGIES BY VARYING THE TEMPERATURE BETWEEN 15-60% C IN A FIXED ENVIRONMENT OF50% SO2, 50% AIR, SATURATED WITH WATER VAPOUR AND BY MEASURING THE SULFATION RATE ON POWDERED CACO3 P.A CONTINIOUSLY (QUARTZ SPIRAL MICROBALANCE) AND ON MARBLE POWDER PELLETS DISCONTINOUSLY (REPEATED WEIGHINGS). FINALLY WE HAVE TESTED NEW PROTECTIVE SYSTEMS TO RETARD THE DIFFUSION OF CA2+ TO THE CORROSIVE MEDIUM. FOR THIS PURPOSE WE HAVE USED THE POLYMERS: CHLORINATED RUBBER, PERFLUOROPOLYETHER, ACRYLIC AND EPOXY RESIN, WITHOUT AND WITH PIGMENTS, SUCH AS AL2(SO4)3.18H20, CRYSTALVIOLET AND RHODAMIN-B.","ΑΝΤΙΚΕΙΜΕΝΟ ΑΥΤΗΣ ΤΗΣ ΕΡΓΑΣΙΑΣ ΥΠΗΡΞΕ Η ΜΕΛΕΤΗ ΤΟΥ ΜΗΧΑΝΙΣΜΟΥ ΤΗΣ ΓΥΨΟΠΟΙΗΣΗΣ ΣΕ ΧΑΜΗΛΕΣ ΣΥΓΚΕΝΤΡΩΣΕΙΣ SO2 ΚΑΙ ΧΑΜΗΛΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ, ΚΑΘΩΣ ΚΑΙ Η ΔΟΚΙΜΗ ΝΕΩΝ ΥΛΙΚΩΝ ΣΕ ΣΧΕΣΗ ΜΕ ΤΗΝ ΠΡΟΣΤΑΣΙΑ ΤΟΥ ΜΑΡΜΑΡΟΥ. ΕΓΙΝΑΝ ΜΕΤΡΗΣΕΙΣ ΜΕ ΣΚΟΝΗ CACO3 P.A. ΚΑΙ ΣΥΝΕΧΗ ΠΑΡΑΚΟΛΟΥΘΗΣΗ ΤΗΣ ΧΡΟΝΙΚΗΣ ΕΞΕΛΙΞΗΣ ΤΗΣ ΑΝΤΙΔΡΑΣΗΣ ΜΕ ΣΠΕΙΡΑ ΧΑΛΑΖΙΑ ΣΤΟΥΣ 475 C, ΜΕ ΠΑΡΑΛΛΑΓΗ ΤΗΣ ΣΥΓΚΕΝΤΡΩΣΗΣ SO2 ΑΠΟ 15%-1% Κ.Ο ΚΑΙ ΣΤΑΘΕΡΗ ΣΥΓΚΕΝΤΡΩΣΗ Ο2(31.2% Κ.Ο) ΚΑΙ ΚΑΤΑΛΛΗΛΗ ΡΥΘΜΙΣΗ ΤΗΣ ΣΥΓΚΕΝΤΡΩΣΗΣ Ν2. ΕΠΙΣΗΣ ΒΡΕΘΗΚΑΝ ΟΙ ΕΝΕΡΓΕΙΕΣ ΕΝΕΡΓΟΠΟΙΗΣΗΣ ΤΗΣ ΑΝΤΙΔΡΑΣΗΣ ΣΕ ΣΚΟΝΗ CACO3 P.A ΚΑΙ ΣΕ ΠΑΣΤΙΛΙΕΣ ΜΑΡΜΑΡΟΣΚΟΝΗΣ ΣΕ ΑΤΜΟΣΦΑΙΡΑ ΚΟΡΕΣΜΕΝΗ ΜΕ ΥΓΡΑΣΙΑ ΚΑΙ ΜΕ 50% SO2, ΣΤΗ ΘΕΡΜΟΚΡΑΣΙΑΚΗ ΠΕΡΙΟΧΗ ΤΩΝ 15-60% C. ΤΕΛΟΣ ΕΓΙΝΑΝ ΔΟΚΙΜΕΣ ΠΡΟΣΤΑΤΕΥΤΙΚΩΝ ΣΥΣΤΗΜΑΤΩΝ ΜΕ ΣΤΟΧΟ ΤΗΝ ΠΑΡΕΜΠΟΔΙΣΗ ΤΗΣ ΔΙΑΧΥΣΗΣ ΤΩΝ CA2+ ΠΡΟΣ ΤΟ ΔΙΑΒΡΩΤΙΚΟ ΠΕΡΙΒΑΛΛΟΝ. ΣΥΓΚΕΚΡΙΜΕΝΑ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΑΝ ΤΑ ΠΟΛΥΜΕΡΗ: ΧΛΩΡΙΩΜΕΝΟ ΚΑΟΥΤΣΟΥΚ, ΥΠΕΡΦΘΟΡΙΩΜΕΝΟΣ ΠΟΛΥΑΙΘΕΡΑΣ, ΑΚΡΥΛΙΚΗ ΚΑΙ ΕΠΟΞΥΔΙΚΗ ΡΗΤΙΝΗ, ΜΟΝΑ ΤΟΥΣ ΚΑΙ ΜΕ ΠΡΟΣΘΗΚΗ ΠΙΓΜΕΝΤΩΝΟΠΩΣ ΤΟ AL2(SO4)3.18H2O, ΤΟ ΚΡΥΣΤΑΛΛΟΙΩΔΕΣ ΚΑΙ ΡΟΔΑΜΙΝΗ-Β."]},{"key":"dc:title","label":"Title","values":["ΜΗΧΑΝΙΣΜΟΣ ΘΕΙΩΣΗΣ ΜΑΡΜΑΡΟΥ ΣΕ ΧΑΜΗΛΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ ΚΑΙ ΧΑΜΗΛΕΣ ΣΥΓΚΕΝΤΡΩΣΕΙΣ ΣΕ ΔΙΟΞΕΙΔΙΟ ΤΟΥ ΘΕΙΟΥ ΚΑΙ ΠΡΟΣΤΑΣΙΑ ΑΠΟ ΤΗ ΘΕΙΩΣΗ ΚΑΙ ΤΗΝ ...","SULFATION MECHANISM OF MARBLE AT LOW CONCENTRATIONS OF SULFUR DIOXIDE AND LOW TEMPERATURES AND PROTECTION OF MARBLE AGAINST SULFATION AND ACID RAIN"]}]}],"canonical_facts":{"dc:creator":["Καλιφατίδου, Ελευθερία"],"dc:date":["1990"],"dc:description":["THE OBJECT OF THE PRESENT WORK HAS BEEN THE INVESTIGATION OF THE SULFATION MECHANISM AT LOW SO2 CONCENTRATION AND LOW TEMPERATURES AND THE TESTING OF NEW PROTECTIVE MATERIALS. WE HAVE MEASURED CONTINIOUSLY (QUARTZ, SPIRAL MICROBALANCE) THE SULFATION RATE ON POWDERED CACO3 P.A AT 475 C WITH VARIATION OF THE SO2 CONCENTRATION BETWEEN 15 VOL% AT CONSTANT CONCENTRATION OF O2 (31 .2 VOL%) BY PROPER CONTROLLING OF THE N2 CONCENTRATION. FURTHER WE HAVE ESTIMATED THE ACTIVATIONENERGIES BY VARYING THE TEMPERATURE BETWEEN 15-60% C IN A FIXED ENVIRONMENT OF50% SO2, 50% AIR, SATURATED WITH WATER VAPOUR AND BY MEASURING THE SULFATION RATE ON POWDERED CACO3 P.A CONTINIOUSLY (QUARTZ SPIRAL MICROBALANCE) AND ON MARBLE POWDER PELLETS DISCONTINOUSLY (REPEATED WEIGHINGS). FINALLY WE HAVE TESTED NEW PROTECTIVE SYSTEMS TO RETARD THE DIFFUSION OF CA2+ TO THE CORROSIVE MEDIUM. FOR THIS PURPOSE WE HAVE USED THE POLYMERS: CHLORINATED RUBBER, PERFLUOROPOLYETHER, ACRYLIC AND EPOXY RESIN, WITHOUT AND WITH PIGMENTS, SUCH AS AL2(SO4)3.18H20, CRYSTALVIOLET AND RHODAMIN-B.","ΑΝΤΙΚΕΙΜΕΝΟ ΑΥΤΗΣ ΤΗΣ ΕΡΓΑΣΙΑΣ ΥΠΗΡΞΕ Η ΜΕΛΕΤΗ ΤΟΥ ΜΗΧΑΝΙΣΜΟΥ ΤΗΣ ΓΥΨΟΠΟΙΗΣΗΣ ΣΕ ΧΑΜΗΛΕΣ ΣΥΓΚΕΝΤΡΩΣΕΙΣ SO2 ΚΑΙ ΧΑΜΗΛΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ, ΚΑΘΩΣ ΚΑΙ Η ΔΟΚΙΜΗ ΝΕΩΝ ΥΛΙΚΩΝ ΣΕ ΣΧΕΣΗ ΜΕ ΤΗΝ ΠΡΟΣΤΑΣΙΑ ΤΟΥ ΜΑΡΜΑΡΟΥ. ΕΓΙΝΑΝ ΜΕΤΡΗΣΕΙΣ ΜΕ ΣΚΟΝΗ CACO3 P.A. ΚΑΙ ΣΥΝΕΧΗ ΠΑΡΑΚΟΛΟΥΘΗΣΗ ΤΗΣ ΧΡΟΝΙΚΗΣ ΕΞΕΛΙΞΗΣ ΤΗΣ ΑΝΤΙΔΡΑΣΗΣ ΜΕ ΣΠΕΙΡΑ ΧΑΛΑΖΙΑ ΣΤΟΥΣ 475 C, ΜΕ ΠΑΡΑΛΛΑΓΗ ΤΗΣ ΣΥΓΚΕΝΤΡΩΣΗΣ SO2 ΑΠΟ 15%-1% Κ.Ο ΚΑΙ ΣΤΑΘΕΡΗ ΣΥΓΚΕΝΤΡΩΣΗ Ο2(31.2% Κ.Ο) ΚΑΙ ΚΑΤΑΛΛΗΛΗ ΡΥΘΜΙΣΗ ΤΗΣ ΣΥΓΚΕΝΤΡΩΣΗΣ Ν2. ΕΠΙΣΗΣ ΒΡΕΘΗΚΑΝ ΟΙ ΕΝΕΡΓΕΙΕΣ ΕΝΕΡΓΟΠΟΙΗΣΗΣ ΤΗΣ ΑΝΤΙΔΡΑΣΗΣ ΣΕ ΣΚΟΝΗ CACO3 P.A ΚΑΙ ΣΕ ΠΑΣΤΙΛΙΕΣ ΜΑΡΜΑΡΟΣΚΟΝΗΣ ΣΕ ΑΤΜΟΣΦΑΙΡΑ ΚΟΡΕΣΜΕΝΗ ΜΕ ΥΓΡΑΣΙΑ ΚΑΙ ΜΕ 50% SO2, ΣΤΗ ΘΕΡΜΟΚΡΑΣΙΑΚΗ ΠΕΡΙΟΧΗ ΤΩΝ 15-60% C. ΤΕΛΟΣ ΕΓΙΝΑΝ ΔΟΚΙΜΕΣ ΠΡΟΣΤΑΤΕΥΤΙΚΩΝ ΣΥΣΤΗΜΑΤΩΝ ΜΕ ΣΤΟΧΟ ΤΗΝ ΠΑΡΕΜΠΟΔΙΣΗ ΤΗΣ ΔΙΑΧΥΣΗΣ ΤΩΝ CA2+ ΠΡΟΣ ΤΟ ΔΙΑΒΡΩΤΙΚΟ ΠΕΡΙΒΑΛΛΟΝ. ΣΥΓΚΕΚΡΙΜΕΝΑ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΑΝ ΤΑ ΠΟΛΥΜΕΡΗ: ΧΛΩΡΙΩΜΕΝΟ ΚΑΟΥΤΣΟΥΚ, ΥΠΕΡΦΘΟΡΙΩΜΕΝΟΣ ΠΟΛΥΑΙΘΕΡΑΣ, ΑΚΡΥΛΙΚΗ ΚΑΙ ΕΠΟΞΥΔΙΚΗ ΡΗΤΙΝΗ, ΜΟΝΑ ΤΟΥΣ ΚΑΙ ΜΕ ΠΡΟΣΘΗΚΗ ΠΙΓΜΕΝΤΩΝΟΠΩΣ ΤΟ AL2(SO4)3.18H2O, ΤΟ ΚΡΥΣΤΑΛΛΟΙΩΔΕΣ ΚΑΙ ΡΟΔΑΜΙΝΗ-Β."],"dc:identifier":["10.12681/eadd/1517","http://hdl.handle.net/10442/hedi/1517"],"dc:language":["gre"],"dc:publisher":["Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)","National Technical University of Athens (NTUA)"],"dc:subject":["ANTICORROSIVE POLYMER COATINGS","Atmospheric pollution","CORROSION OF BUILDING MATERIALS","Marble","Monuments","Pigments","Semiconductors","STONE CONSERVATION","SULFATION","SULFUR DIOXIDE","ΑΝΤΙΔΙΑΒΡΩΤΙΚΑ ΠΟΛΥΜΕΡΗ ΕΠΙΚΑΛΥΠΤΙΚΑ","Ρύπανση, Ατμοσφαιρική","ΔΙΑΒΡΩΣΗ ΔΟΜΙΚΩΝ ΥΛΙΚΩΝ","Διοξείδιο του θείου","Ημιαγωγοί","Θείωση","Μάρμαρο","Μνημεία","ΠΙΓΜΕΝΤΑ","ΣΥΝΤΗΡΗΣΗ ΠΕΤΡΑΣ","Engineering and Technology","Chemical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Χημικού Μηχανικού"],"dc:title":["ΜΗΧΑΝΙΣΜΟΣ ΘΕΙΩΣΗΣ ΜΑΡΜΑΡΟΥ ΣΕ ΧΑΜΗΛΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ ΚΑΙ ΧΑΜΗΛΕΣ ΣΥΓΚΕΝΤΡΩΣΕΙΣ ΣΕ ΔΙΟΞΕΙΔΙΟ ΤΟΥ ΘΕΙΟΥ ΚΑΙ ΠΡΟΣΤΑΣΙΑ ΑΠΟ ΤΗ ΘΕΙΩΣΗ ΚΑΙ ΤΗΝ ...","SULFATION MECHANISM OF MARBLE AT LOW CONCENTRATIONS OF SULFUR DIOXIDE AND LOW TEMPERATURES AND PROTECTION OF MARBLE AGAINST SULFATION AND ACID RAIN"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:24:59Z"}