{"id":{"repo_id":"umn","oai_identifier":"oai:conservancy.umn.edu:11299/200978"},"canonical_url":"https://search.dev.ndltd.org/etd/umn/oai:conservancy.umn.edu:11299/200978","repository":{"repo_id":"umn","name":"University of Minnesota","base_url":"https://conservancy.umn.edu/server/oai/request"},"display":{"title":"An Investigation of Geopolymers for Use In High Temperature Applications","abstract":"This research explores the use of various geopolymer concretes at high temperatures. Geopolymer cement concretes (GCCs) do not require hydration to maintain a stable structure. This is beneficial in high temperature conditions, such as a core meltdown at a nuclear power plant or a structural fire, where dehydration of materials occurs. Geopolymer concretes synthesized with fly ash, metakaolin, ground glass, and combinations thereof are investigated. To simulate the thermal loading that exists in a core meltdown, GCCs in this study are exposed to impulses of thermal energy. To simulate the effects of a structural fire, additional specimens are subjected to at a ramped heating rate. Specimens are also subjected to thermal shock loading through quenching with water. A nondestructive surface hardness test is also developed to determine compressive strengths at high temperatures. Specimens are also exposed to molten metal to simulate corium dropping onto the materials during a core meltdown.","abstract_html":"This research explores the use of various geopolymer concretes at high temperatures. Geopolymer cement concretes (GCCs) do not require hydration to maintain a stable structure. This is beneficial in high temperature conditions, such as a core meltdown at a nuclear power plant or a structural fire, where dehydration of materials occurs. Geopolymer concretes synthesized with fly ash, metakaolin, ground glass, and combinations thereof are investigated. To simulate the thermal loading that exists in a core meltdown, GCCs in this study are exposed to impulses of thermal energy. To simulate the effects of a structural fire, additional specimens are subjected to at a ramped heating rate. Specimens are also subjected to thermal shock loading through quenching with water. A nondestructive surface hardness test is also developed to determine compressive strengths at high temperatures. Specimens are also exposed to molten metal to simulate corium dropping onto the materials during a core meltdown.","abstract_has_math":false,"creators":["Sundberg, Casey"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-08","date_published":"2018-08","updated_at":"2026-07-24T05:20:00Z","subjects":["Alternative Energy","Fire Safety","Geopolymers","High Temperatures","Nuclear Power Plant Safety","Thermal Loads"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11299/200978","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Sundberg, Casey"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-11-28T14:11:20Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2018-11-28T14:11:20Z"]},{"key":"dc:date.issued","label":"Date","values":["2018-08"]},{"key":"dc:type","label":"Dc Type","values":["Thesis or Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Alternative Energy","Fire Safety","Geopolymers","High Temperatures","Nuclear Power Plant Safety","Thermal Loads"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11299/200978"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["University of Minnesota M.S. thesis. August 2018. Major: Civil Engineering. Advisors: Mary Christiansen, Andrea Schokker. 1 computer file (PDF); x, 201 pages."]},{"key":"dc:description.abstract","label":"Abstract","values":["This research explores the use of various geopolymer concretes at high temperatures. Geopolymer cement concretes (GCCs) do not require hydration to maintain a stable structure. This is beneficial in high temperature conditions, such as a core meltdown at a nuclear power plant or a structural fire, where dehydration of materials occurs. Geopolymer concretes synthesized with fly ash, metakaolin, ground glass, and combinations thereof are investigated. To simulate the thermal loading that exists in a core meltdown, GCCs in this study are exposed to impulses of thermal energy. To simulate the effects of a structural fire, additional specimens are subjected to at a ramped heating rate. Specimens are also subjected to thermal shock loading through quenching with water. A nondestructive surface hardness test is also developed to determine compressive strengths at high temperatures. Specimens are also exposed to molten metal to simulate corium dropping onto the materials during a core meltdown."]},{"key":"dc:title","label":"Title","values":["An Investigation of Geopolymers for Use In High Temperature Applications"]}]}],"canonical_facts":{"dc:creator":["Sundberg, Casey"],"dc:date.accessioned":["2018-11-28T14:11:20Z"],"dc:date.available":["2018-11-28T14:11:20Z"],"dc:date.issued":["2018-08"],"dc:description":["University of Minnesota M.S. thesis. August 2018. Major: Civil Engineering. Advisors: Mary Christiansen, Andrea Schokker. 1 computer file (PDF); x, 201 pages."],"dc:description.abstract":["This research explores the use of various geopolymer concretes at high temperatures. Geopolymer cement concretes (GCCs) do not require hydration to maintain a stable structure. This is beneficial in high temperature conditions, such as a core meltdown at a nuclear power plant or a structural fire, where dehydration of materials occurs. Geopolymer concretes synthesized with fly ash, metakaolin, ground glass, and combinations thereof are investigated. To simulate the thermal loading that exists in a core meltdown, GCCs in this study are exposed to impulses of thermal energy. To simulate the effects of a structural fire, additional specimens are subjected to at a ramped heating rate. Specimens are also subjected to thermal shock loading through quenching with water. A nondestructive surface hardness test is also developed to determine compressive strengths at high temperatures. Specimens are also exposed to molten metal to simulate corium dropping onto the materials during a core meltdown."],"dc:identifier.uri":["http://hdl.handle.net/11299/200978"],"dc:language.iso":["en"],"dc:subject":["Alternative Energy","Fire Safety","Geopolymers","High Temperatures","Nuclear Power Plant Safety","Thermal Loads"],"dc:title":["An Investigation of Geopolymers for Use In High Temperature Applications"],"dc:type":["Thesis or Dissertation"]},"updated_at":"2026-07-24T05:20:00Z"}