Insight into the microstructural and durability characteristics of 3D printed concrete: Cast versus printed specimens

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dc.contributor.authorSikora, Pawel
dc.contributor.authorTechman, Mateusz
dc.contributor.authorFederowicz, Karol
dc.contributor.authorEl-Khayatt, Ahmed M.
dc.contributor.authorSaudi, H.A.
dc.contributor.authorAbd Elrahman, Mohamed
dc.contributor.authorHoffmann, Marcin
dc.contributor.authorStephan, Dietmar
dc.contributor.authorChung, Sang-Yeop
dc.contributor.organizationFaculty of Civil and Environmental Engineering, West Pomeranian University of Technology in Szczecin, Polanden
dc.contributor.organizationDepartment of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University, (IMSIU), Riyadh, Saudi Arabiaen
dc.contributor.organizationReactor Physics Department, Nuclear Research Centre, Atomic Energy Authority, 13759 Cairo, Egypten
dc.contributor.organizationDepartment of Physics, Faculty of Science, Al-Azhar University, Women Branch, Nasr City, Cairo, Egypten
dc.contributor.organizationStructural Engineering Department, Mansoura University, Mansoura City 35516, Egypten
dc.contributor.organizationFaculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, Polanden
dc.contributor.organizationBuilding Materials and Construction Chemistry, Technische Universität Berlin, Germanyen
dc.contributor.organizationDepartment of Civil and Environmental Engineering, Sejong University, Seoul 05006, Republic of Koreaen
dc.date.accessioned2023-01-09T10:46:22Z
dc.date.available2023-01-09T10:46:22Z
dc.date.issued2022-07-16
dc.descriptionThis is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).en
dc.description.abstractThis study presents the comparison of microstructural and durability characteristics of 3D printed concrete (3DPC) depending on its production method (printing or casting). Printed samples with different numbers of layers, as well as a cast specimen with an identical mix composition, were produced and compared, with their microstructural pore and solid characteristics quantitatively and qualitatively investigated. For this purpose, scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP) and X-ray micro-computed tomography (micro-CT) were utilized to evaluate the microstructures of the 3DPC. In particular, quantitative approaches using micro-CT data were newly proposed for a better understanding of the microstructural characteristics of 3DPC. Moreover, their durability-related characteristics and transport properties, including freeze-thaw and thermal resistance, were examined and compared. Despite noticeable differences between the microstructures of the printed and cast specimens, including their anisotropic and inter-layer porosity and heterogeneity, confirmed by MIP, SEM and micro-CT, no significant differences in the transport (capillary water porosity and water sorptivity) or durability-related properties (frost and thermal attack) were found. This was due to the dense and homogenous microstructure of 3DPC, which is attributable to the high binder content and low w/b of the mixture. Moreover, the newly proposed evaluation provided reasonable quantitative and qualitative characteristics, which can be used to demonstrate and predict the material properties of 3DPC.en
dc.description.sponsorshipThis research was funded in part by the National Science Centre, Poland within Project no. 2020/39/D/ST8/00975 (SONATA-16)en
dc.identifier.citationSikora P., Techman M., Federowicz K., El-Khayatt A. M., Saudi H. A., Elrahman M. A., Hoffmann M., Stephan D., Sang-Yeop Chung (2022). Insight into the microstructural and durability characteristics of 3D printed concrete: Cast versus printed specimens. Case Studies in Construction Materials. 17, 1-19 [nr art.] e01320. https://doi.org/10.1016/j.cscm.2022.e01320en
dc.identifier.doi1016/j.matdes.2022.111183
dc.identifier.issn2214-5095
dc.identifier.project2020/39/D/ST8/00975pl_PL
dc.identifier.urihttps://hdl.handle.net/20.500.12539/1597
dc.language.isoenen
dc.publisherElsevier BVen
dc.rightsUznanie autorstwa 3.0 Polska*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/pl/*
dc.sourceCase Studies in Construction Materialsen
dc.subject3D printingen
dc.subjectAdditive manufacturingen
dc.subjectConcreteen
dc.subjectMicrostructureen
dc.subjectDurabilityen
dc.subjectMicro-CTen
dc.subject.otherbudownictwopl_PL
dc.titleInsight into the microstructural and durability characteristics of 3D printed concrete: Cast versus printed specimensen
dc.typeArticleen

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