{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/87979"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/87979","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Influence of lightweight aggregate and calcium sulfoaluminate cement on deformation of ordinary Portland cement mortar and concrete","abstract":"Cracking due to shrinkage is a predominant cause of concrete constructions degradation. Several strategies were developed to mitigate shrinkage in concrete. The addition of pre-soaked lightweight aggregate (LWA) and usage of calcium sulfoaluminate (CSA) cement are two common methods applied in shrinkage mitigation. Pre-soaked LWA supplies additional moisture to cement paste during hydration, thereby compensating for the water consumption that occurs during hydration and drying. CSA cement induces expansion of the matrix, which counteracts shrinkage. This thesis presents the results from a wide range of tests that examined the effectiveness of LWA and CSA cement on shrinkage mitigation of mortar and concrete. The results indicate that the addition of pre-soaked LWA could reduce the shrinkage under sealed conditions, and the effectiveness is influenced by the dosage of pre-soaked LWA, w/c ratio and soaking time of LWA. Under unsealed conditions, the addition of pre-soaked LWA is not an effective way on shrinkage mitigation. However, LWA does affect the shrinkage of the matrix by influencing the stiffness of the entire matrix. The combined use of pre-soaked LWA and CSA cement could more effectively mitigate shrinkage, and the effect was more significant with increasing dosage of LWA.","abstract_html":"Cracking due to shrinkage is a predominant cause of concrete constructions degradation. Several strategies were developed to mitigate shrinkage in concrete. The addition of pre-soaked lightweight aggregate (LWA) and usage of calcium sulfoaluminate (CSA) cement are two common methods applied in shrinkage mitigation. Pre-soaked LWA supplies additional moisture to cement paste during hydration, thereby compensating for the water consumption that occurs during hydration and drying. CSA cement induces expansion of the matrix, which counteracts shrinkage. This thesis presents the results from a wide range of tests that examined the effectiveness of LWA and CSA cement on shrinkage mitigation of mortar and concrete. The results indicate that the addition of pre-soaked LWA could reduce the shrinkage under sealed conditions, and the effectiveness is influenced by the dosage of pre-soaked LWA, w/c ratio and soaking time of LWA. Under unsealed conditions, the addition of pre-soaked LWA is not an effective way on shrinkage mitigation. However, LWA does affect the shrinkage of the matrix by influencing the stiffness of the entire matrix. The combined use of pre-soaked LWA and CSA cement could more effectively mitigate shrinkage, and the effect was more significant with increasing dosage of LWA.","abstract_has_math":false,"creators":["Wu, Di"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Civil Engineering","degree_department":null,"school":null,"contributors":["Mondal, Paramita"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-29T20:37:49Z","date_published":"2015-09-29T20:37:49Z","updated_at":"2026-07-22T22:26:31Z","subjects":["Shrinkage mitigation","Lightweight aggregate","Calcium sulfoaluminate cement"],"languages":["en"],"rights":["Copyright 2015 by Di Wu"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/87979","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mondal, Paramita"]},{"key":"dc:creator","label":"Author","values":["Wu, Di"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-29T20:37:49Z","2015-08","2015-06-29","2015-8"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"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":["Shrinkage mitigation","Lightweight aggregate","Calcium sulfoaluminate cement"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2015 by Di Wu"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/87979"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Cracking due to shrinkage is a predominant cause of concrete constructions degradation. Several strategies were developed to mitigate shrinkage in concrete. The addition of pre-soaked lightweight aggregate (LWA) and usage of calcium sulfoaluminate (CSA) cement are two common methods applied in shrinkage mitigation. Pre-soaked LWA supplies additional moisture to cement paste during hydration, thereby compensating for the water consumption that occurs during hydration and drying. CSA cement induces expansion of the matrix, which counteracts shrinkage. This thesis presents the results from a wide range of tests that examined the effectiveness of LWA and CSA cement on shrinkage mitigation of mortar and concrete. The results indicate that the addition of pre-soaked LWA could reduce the shrinkage under sealed conditions, and the effectiveness is influenced by the dosage of pre-soaked LWA, w/c ratio and soaking time of LWA. Under unsealed conditions, the addition of pre-soaked LWA is not an effective way on shrinkage mitigation. However, LWA does affect the shrinkage of the matrix by influencing the stiffness of the entire matrix. The combined use of pre-soaked LWA and CSA cement could more effectively mitigate shrinkage, and the effect was more significant with increasing dosage of LWA.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2015-09-29 without embargo terms","The student, Di Wu, accepted the attached license on 2015-06-27 at 19:14.","The student, Di Wu, submitted this Thesis for approval on 2015-06-27 at 19:15.","This Thesis was approved for publication on 2015-06-29 at 10:06.","DSpace SAF Submission Ingestion Package generated from Vireo submission #8314 on 2015-09-29 at 13:21:40","Made available in DSpace on 2015-09-29T20:37:49Z (GMT). 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Several strategies were developed to mitigate shrinkage in concrete. The addition of pre-soaked lightweight aggregate (LWA) and usage of calcium sulfoaluminate (CSA) cement are two common methods applied in shrinkage mitigation. Pre-soaked LWA supplies additional moisture to cement paste during hydration, thereby compensating for the water consumption that occurs during hydration and drying. CSA cement induces expansion of the matrix, which counteracts shrinkage. This thesis presents the results from a wide range of tests that examined the effectiveness of LWA and CSA cement on shrinkage mitigation of mortar and concrete. The results indicate that the addition of pre-soaked LWA could reduce the shrinkage under sealed conditions, and the effectiveness is influenced by the dosage of pre-soaked LWA, w/c ratio and soaking time of LWA. Under unsealed conditions, the addition of pre-soaked LWA is not an effective way on shrinkage mitigation. However, LWA does affect the shrinkage of the matrix by influencing the stiffness of the entire matrix. The combined use of pre-soaked LWA and CSA cement could more effectively mitigate shrinkage, and the effect was more significant with increasing dosage of LWA.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2015-09-29 without embargo terms","The student, Di Wu, accepted the attached license on 2015-06-27 at 19:14.","The student, Di Wu, submitted this Thesis for approval on 2015-06-27 at 19:15.","This Thesis was approved for publication on 2015-06-29 at 10:06.","DSpace SAF Submission Ingestion Package generated from Vireo submission #8314 on 2015-09-29 at 13:21:40","Made available in DSpace on 2015-09-29T20:37:49Z (GMT). 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Removed extraneous entries."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/87979"],"dc:language":["en"],"dc:rights":["Copyright 2015 by Di Wu"],"dc:subject":["Shrinkage mitigation","Lightweight aggregate","Calcium sulfoaluminate cement"],"dc:title":["Influence of lightweight aggregate and calcium sulfoaluminate cement on deformation of ordinary Portland cement mortar and concrete"],"dc:type":["text"],"thesis:degree_discipline":["Civil Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:31Z"}