{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/102770"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/102770","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Utilization of fine recycled concrete aggregate and alternative testing for controlled low-strength materials","abstract":"U of I Only Restriction Lifted for Item 109794 on 2021-02-08T10:15:32Z.","abstract_html":"U of I Only Restriction Lifted for Item 109794 on 2021-02-08T10:15:32Z.","abstract_has_math":false,"creators":["Henschen, Jacob Daniel"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Civil and Environmental Engineering","degree_department":null,"school":null,"contributors":["Lange, David A.","Popovics, John S.","Roesler, Jeffery R.","Mondal, Paramita","Anderson, Ross"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-02-07T20:35:50Z","date_published":"2019-02-07T20:35:50Z","updated_at":"2026-07-22T22:24:42Z","subjects":["Recycled concrete aggregate","Fine recycled concrete aggregate","Controlled Low-Strength Materials","Dynamic cone penetrometer testing","Accelerated curing"],"languages":["en"],"rights":["Copyright 2018 Jacob Henschen"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/102770","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Lange, David A.","Popovics, John S.","Roesler, Jeffery R.","Mondal, Paramita","Anderson, Ross"]},{"key":"dc:creator","label":"Author","values":["Henschen, Jacob Daniel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-02-07T20:35:50Z","2021-02-08T10:15:32Z","2018-08-14","2018-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil and Environmental Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Recycled concrete aggregate","Fine recycled concrete aggregate","Controlled Low-Strength Materials","Dynamic cone penetrometer testing","Accelerated curing"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2018 Jacob Henschen"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/102770"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["U of I Only Restriction Lifted for Item 109794 on 2021-02-08T10:15:32Z.","With ever-increasing emphasis on sustainability, recycling concrete as aggregate has continued to be an important topic. While the use of the coarse fraction of recycled concrete has become commonplace, the fine fraction is largely regarded as a waste material with few outlets for its use. In this thesis, the use of recycled fine concrete aggregate is investigated for use as a source of internal curing in new concrete and as the aggregate in controlled low-strength materials. Characterization of the recycled fine concrete aggregate did not indicate the presence of appreciable quantities of reactive materials, but the recycled aggregates do possess high absorption capacities, which indicates a potential for internal curing. The ability to provide internal curing is tested using autogenous shrinkage measurements. The mixture design method previously develop for controlled low-strength materials is further validated using alternative material combinations. In addition, dynamic cone penetrometer testing and accelerated curing methods are applied to the controlled low-strength material in order to better characterize the strength of the material. The internal curing tests indicated a potential for recycled aggregates to be used for internal curing. The results from the mixture design validation support the previous conclusions that slump flow is highly reliant on the paste volume. The subsidence and strength are both tied to the cement content and the water to cementitious ratio. The findings of the dynamic cone penetrometer tests suggest that it is a viable in situ test for controlled low-strength material. The in situ testing are then correlated with the unconfined compressive strength. Using elevated temperatures to cure controlled low-strength materials did result in significant strength increases over room temperature curing. The higher early strengths from the accelerated curing provides valuable information on the maximum strength that can be achieved from a mixture. The strength gain as a function of time and temperature is modeled for controlled low-strength materials using virgin fine aggregates.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-12-01","The student, Jacob Henschen, accepted the attached license on 2018-08-13 at 11:10.","The student, Jacob Henschen, submitted this Dissertation for approval on 2018-08-13 at 11:18.","This Dissertation was approved for publication on 2018-08-14 at 09:35.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12971 on 2019-02-07 at 14:15:59","Made available in DSpace on 2019-02-07T20:35:50Z (GMT). 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While the use of the coarse fraction of recycled concrete has become commonplace, the fine fraction is largely regarded as a waste material with few outlets for its use. In this thesis, the use of recycled fine concrete aggregate is investigated for use as a source of internal curing in new concrete and as the aggregate in controlled low-strength materials. Characterization of the recycled fine concrete aggregate did not indicate the presence of appreciable quantities of reactive materials, but the recycled aggregates do possess high absorption capacities, which indicates a potential for internal curing. The ability to provide internal curing is tested using autogenous shrinkage measurements. The mixture design method previously develop for controlled low-strength materials is further validated using alternative material combinations. In addition, dynamic cone penetrometer testing and accelerated curing methods are applied to the controlled low-strength material in order to better characterize the strength of the material. The internal curing tests indicated a potential for recycled aggregates to be used for internal curing. The results from the mixture design validation support the previous conclusions that slump flow is highly reliant on the paste volume. The subsidence and strength are both tied to the cement content and the water to cementitious ratio. The findings of the dynamic cone penetrometer tests suggest that it is a viable in situ test for controlled low-strength material. The in situ testing are then correlated with the unconfined compressive strength. Using elevated temperatures to cure controlled low-strength materials did result in significant strength increases over room temperature curing. The higher early strengths from the accelerated curing provides valuable information on the maximum strength that can be achieved from a mixture. The strength gain as a function of time and temperature is modeled for controlled low-strength materials using virgin fine aggregates.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-12-01","The student, Jacob Henschen, accepted the attached license on 2018-08-13 at 11:10.","The student, Jacob Henschen, submitted this Dissertation for approval on 2018-08-13 at 11:18.","This Dissertation was approved for publication on 2018-08-14 at 09:35.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12971 on 2019-02-07 at 14:15:59","Made available in DSpace on 2019-02-07T20:35:50Z (GMT). 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