{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/101675"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/101675","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Effect of vibration on yield stress of concrete for 3D printing applications","abstract":"Concrete 3D printing is one of the latest developments in the field of construction. It promises several benefits but needs further development before it can be used as a practical construction technique. One primary challenge is the requirement for 3D printable concrete to behave like a fluid during pumping and extrusion, and like a solid after extrusion. This paradox could potentially be solved by using vibration to control the yield stress of concrete. Research has shown that concrete behaves like a Newtonian fluid during vibration at low shear rates. The primary objective of this research is to qualitatively understand the effects of vibration on the fresh properties of concrete and its implications for 3D printing with a vibrating nozzle. An existing concrete rheometer was modified to be able to reliably measure yield stress of concrete during vibration. This thesis details the modifications made to the rheometer and discusses the reliability of the measurements made with the modified rheometer. The relationship between yield stress and time was evaluated and the effect of the destructive yield stress measurement technique on its result was discussed. A test protocol was developed to mimic concrete 3D printing using vibration. The parabolic relationship between yield stress and sand content was verified at different hydration ages using the developed test protocol. The effect of vibration on the yield stress of concrete during the dormant stage was studied. The reduction in yield stress during vibration was found to be instantaneous and reversible throughout the dormant period. It was also found out that vibration causes the yield stress of concrete to grow at a slower pace. It was also observed that the effect of vibration on concrete is dependent on the amplitude of vibration.","abstract_html":"Concrete 3D printing is one of the latest developments in the field of construction. It promises several benefits but needs further development before it can be used as a practical construction technique. One primary challenge is the requirement for 3D printable concrete to behave like a fluid during pumping and extrusion, and like a solid after extrusion. This paradox could potentially be solved by using vibration to control the yield stress of concrete. Research has shown that concrete behaves like a Newtonian fluid during vibration at low shear rates. The primary objective of this research is to qualitatively understand the effects of vibration on the fresh properties of concrete and its implications for 3D printing with a vibrating nozzle. An existing concrete rheometer was modified to be able to reliably measure yield stress of concrete during vibration. This thesis details the modifications made to the rheometer and discusses the reliability of the measurements made with the modified rheometer. The relationship between yield stress and time was evaluated and the effect of the destructive yield stress measurement technique on its result was discussed. A test protocol was developed to mimic concrete 3D printing using vibration. The parabolic relationship between yield stress and sand content was verified at different hydration ages using the developed test protocol. The effect of vibration on the yield stress of concrete during the dormant stage was studied. The reduction in yield stress during vibration was found to be instantaneous and reversible throughout the dormant period. It was also found out that vibration causes the yield stress of concrete to grow at a slower pace. It was also observed that the effect of vibration on concrete is dependent on the amplitude of vibration.","abstract_has_math":false,"creators":["Pattaje Sooryanarayana, Karthik"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Civil Engineering","degree_department":null,"school":null,"contributors":["Lange, David A."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-09-27T16:30:18Z","date_published":"2018-09-27T16:30:18Z","updated_at":"2026-07-22T22:24:40Z","subjects":["Concrete, 3D Printing, Vibration, Yield stress, ICAR rheometer"],"languages":["en"],"rights":["Copyright 2018 Karthik Pattaje Sooryanarayana"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/101675","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Lange, David A."]},{"key":"dc:creator","label":"Author","values":["Pattaje Sooryanarayana, Karthik"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-09-27T16:30:18Z","2020-09-28T09:15:27Z","2018-07-19","2018-08"]},{"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":["Concrete, 3D Printing, Vibration, Yield stress, ICAR rheometer"]}]},{"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 Karthik Pattaje Sooryanarayana"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/101675"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Concrete 3D printing is one of the latest developments in the field of construction. It promises several benefits but needs further development before it can be used as a practical construction technique. One primary challenge is the requirement for 3D printable concrete to behave like a fluid during pumping and extrusion, and like a solid after extrusion. This paradox could potentially be solved by using vibration to control the yield stress of concrete. Research has shown that concrete behaves like a Newtonian fluid during vibration at low shear rates. The primary objective of this research is to qualitatively understand the effects of vibration on the fresh properties of concrete and its implications for 3D printing with a vibrating nozzle. An existing concrete rheometer was modified to be able to reliably measure yield stress of concrete during vibration. This thesis details the modifications made to the rheometer and discusses the reliability of the measurements made with the modified rheometer. The relationship between yield stress and time was evaluated and the effect of the destructive yield stress measurement technique on its result was discussed. A test protocol was developed to mimic concrete 3D printing using vibration. The parabolic relationship between yield stress and sand content was verified at different hydration ages using the developed test protocol. The effect of vibration on the yield stress of concrete during the dormant stage was studied. The reduction in yield stress during vibration was found to be instantaneous and reversible throughout the dormant period. It was also found out that vibration causes the yield stress of concrete to grow at a slower pace. It was also observed that the effect of vibration on concrete is dependent on the amplitude of vibration.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-08-01","The student, Karthik Pattaje Sooryanarayana, accepted the attached license on 2018-07-19 at 09:55.","The student, Karthik Pattaje Sooryanarayana, submitted this Thesis for approval on 2018-07-19 at 10:05.","This Thesis was approved for publication on 2018-07-19 at 11:10.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12731 on 2018-09-27 at 11:16:31","Made available in DSpace on 2018-09-27T16:30:18Z (GMT). No. of bitstreams: 3 PATTAJESOORYANARAYANA-THESIS-2018.pdf: 944141 bytes, checksum: 76127842229f9593483d5ea13d698cc4 (MD5) Pattaje Sooryanarayana, Karthik - M.S. Thesis.docx: 2189163 bytes, checksum: 84a972470353dc67340f7840a0ca0b56 (MD5) LICENSE.txt: 4227 bytes, checksum: 676a0df9408d10afe7fdcdef00f9e5e1 (MD5) Previous issue date: 2018-07-19","Embargo set by: Seth Robbins for item 107773 Lift date: 2020-09-27T16:30:34Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107773 Lift date: 2020-09-27T16:31:43Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107773 Lift date: 2020-09-27T16:34:29Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only Restriction Lifted for Item 107773 on 2020-09-28T09:15:27Z."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Effect of vibration on yield stress of concrete for 3D printing applications"]}]}],"canonical_facts":{"dc:contributor":["Lange, David A."],"dc:creator":["Pattaje Sooryanarayana, Karthik"],"dc:date":["2018-09-27T16:30:18Z","2020-09-28T09:15:27Z","2018-07-19","2018-08"],"dc:description":["Concrete 3D printing is one of the latest developments in the field of construction. It promises several benefits but needs further development before it can be used as a practical construction technique. One primary challenge is the requirement for 3D printable concrete to behave like a fluid during pumping and extrusion, and like a solid after extrusion. This paradox could potentially be solved by using vibration to control the yield stress of concrete. Research has shown that concrete behaves like a Newtonian fluid during vibration at low shear rates. The primary objective of this research is to qualitatively understand the effects of vibration on the fresh properties of concrete and its implications for 3D printing with a vibrating nozzle. An existing concrete rheometer was modified to be able to reliably measure yield stress of concrete during vibration. This thesis details the modifications made to the rheometer and discusses the reliability of the measurements made with the modified rheometer. The relationship between yield stress and time was evaluated and the effect of the destructive yield stress measurement technique on its result was discussed. A test protocol was developed to mimic concrete 3D printing using vibration. The parabolic relationship between yield stress and sand content was verified at different hydration ages using the developed test protocol. The effect of vibration on the yield stress of concrete during the dormant stage was studied. The reduction in yield stress during vibration was found to be instantaneous and reversible throughout the dormant period. It was also found out that vibration causes the yield stress of concrete to grow at a slower pace. It was also observed that the effect of vibration on concrete is dependent on the amplitude of vibration.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-08-01","The student, Karthik Pattaje Sooryanarayana, accepted the attached license on 2018-07-19 at 09:55.","The student, Karthik Pattaje Sooryanarayana, submitted this Thesis for approval on 2018-07-19 at 10:05.","This Thesis was approved for publication on 2018-07-19 at 11:10.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12731 on 2018-09-27 at 11:16:31","Made available in DSpace on 2018-09-27T16:30:18Z (GMT). No. of bitstreams: 3 PATTAJESOORYANARAYANA-THESIS-2018.pdf: 944141 bytes, checksum: 76127842229f9593483d5ea13d698cc4 (MD5) Pattaje Sooryanarayana, Karthik - M.S. Thesis.docx: 2189163 bytes, checksum: 84a972470353dc67340f7840a0ca0b56 (MD5) LICENSE.txt: 4227 bytes, checksum: 676a0df9408d10afe7fdcdef00f9e5e1 (MD5) Previous issue date: 2018-07-19","Embargo set by: Seth Robbins for item 107773 Lift date: 2020-09-27T16:30:34Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107773 Lift date: 2020-09-27T16:31:43Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107773 Lift date: 2020-09-27T16:34:29Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only Restriction Lifted for Item 107773 on 2020-09-28T09:15:27Z."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/101675"],"dc:language":["en"],"dc:rights":["Copyright 2018 Karthik Pattaje Sooryanarayana"],"dc:subject":["Concrete, 3D Printing, Vibration, Yield stress, ICAR rheometer"],"dc:title":["Effect of vibration on yield stress of concrete for 3D printing applications"],"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":"2026-07-22T22:24:40Z"}