{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,9]],"date-time":"2025-11-09T07:52:25Z","timestamp":1762674745602,"version":"build-2065373602"},"reference-count":46,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2024,8,4]],"date-time":"2024-08-04T00:00:00Z","timestamp":1722729600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012246","name":"Priority Academic Program Development of Jiangsu Higher Education Institutions","doi-asserted-by":"publisher","award":["PAPD"],"award-info":[{"award-number":["PAPD"]}],"id":[{"id":"10.13039\/501100012246","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Social Development of Science and Technology Department of Jiangsu Province-Major Science and Technology Demonstration Project","award":["BE2022608"],"award-info":[{"award-number":["BE2022608"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>Traditional lightweight foam concrete typically introduces a large number of voids into the concrete using surfactants to reduce density. However, in 3D printing, the instability of lightweight foam concrete can affect the workability of the slurry. Additionally, the lower strength of foam with more pores also reduces its mechanical performance. This study found that by replacing sand with expanded perlite in 3D-printed foam concrete, the stability of the foam is improved, enhancing the workability of the mixture and increasing the constructability of printed concrete. Furthermore, analyses of mechanical properties, porosity, and pore size distribution showed that at the same dry density, foam concrete with a higher expanded perlite replacement ratio exhibited higher compressive strength, with a maximum strength increase of up to 39%. Moreover, the introduction of expanded perlite optimized the pore distribution of the foam concrete, resulting in a more uniform material structure. The 3D-printed expanded perlite\u2013foam concrete (3DPFC) prepared in this study provides new insights for the preparation of lightweight 3D-printed concrete, which is of significant importance for the sustainable development of the construction industry.<\/jats:p>","DOI":"10.3390\/app14156796","type":"journal-article","created":{"date-parts":[[2024,8,5]],"date-time":"2024-08-05T15:45:22Z","timestamp":1722872722000},"page":"6796","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Preparation and Performance Characterization of Low-Density 3D-Printed Expanded Perlite\u2013Foam Concrete"],"prefix":"10.3390","volume":"14","author":[{"given":"Shangjin","family":"Jiang","sequence":"first","affiliation":[{"name":"College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China"}]},{"given":"Yuntao","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0704-2655","authenticated-orcid":false,"given":"Sudong","family":"Hua","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China"}]},{"given":"Hongfei","family":"Yue","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China"}]},{"given":"Yanan","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"119028","DOI":"10.1016\/j.conbuildmat.2020.119028","article-title":"The effect of nanomaterials on properties of geopolymers derived from industrial by-products: A state-of-the-art review","volume":"252","author":"Jindal","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1016\/j.acme.2017.02.008","article-title":"Fresh and hardened properties of 3D printable cementitious materials for building and construction","volume":"18","author":"Paul","year":"2018","journal-title":"Arch. Civ. Mech. Eng."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"104087","DOI":"10.1016\/j.autcon.2021.104087","article-title":"3D concrete printing for sustainable and economical construction: A comparative study","volume":"134","author":"Batikha","year":"2022","journal-title":"Autom. Constr."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"105533","DOI":"10.1016\/j.compositesa.2019.105533","article-title":"A review of the current progress and application of 3D printed concrete","volume":"125","author":"Zhang","year":"2019","journal-title":"Compos. Part A Appl. Sci. Manuf."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"131614","DOI":"10.1016\/j.conbuildmat.2023.131614","article-title":"3D Printed Concrete: A comprehensive review of raw material\u2019s properties, synthesis, performance, and potential field applications","volume":"387","author":"Jindal","year":"2023","journal-title":"Constr. Build. Mater."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Wrobel, R., and Mecrow, B. (2019, January 22\u201323). Additive manufacturing in construction of electrical machines\u2013a review. Proceedings of the 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Athens, Greece.","DOI":"10.1109\/WEMDCD.2019.8887765"},{"key":"ref_7","first-page":"101823","article-title":"Biomimicry for 3D concrete printing: A review and perspective","volume":"38","author":"Babafemi","year":"2021","journal-title":"Addit. Manuf."},{"key":"ref_8","first-page":"58","article-title":"3D printing for construction based on a complex wall of polymer-foam and concrete","volume":"28","author":"Furet","year":"2019","journal-title":"Addit. Manuf."},{"key":"ref_9","first-page":"101712","article-title":"Finite element analysis on the anisotropic behavior of 3D printed concrete under compression and flexure","volume":"39","author":"Xiao","year":"2021","journal-title":"Addit. Manuf."},{"key":"ref_10","first-page":"101740","article-title":"An investigation into the porosity of extrusion-based 3D printed concrete","volume":"37","author":"Kruger","year":"2021","journal-title":"Addit. Manuf."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"106077","DOI":"10.1016\/j.cemconres.2020.106077","article-title":"Particle bed 3D printing by selective cement activation\u2013Applications, material and process technology","volume":"134","author":"Lowke","year":"2020","journal-title":"Cem. Concr. Res."},{"key":"ref_12","first-page":"101190","article-title":"Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing","volume":"34","author":"Liu","year":"2020","journal-title":"Addit. Manuf."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"106651","DOI":"10.1016\/j.cemconres.2021.106651","article-title":"Rheology and microstructure development of hydrating tricalcium silicate-implications for additive manufacturing in construction","volume":"152","author":"Jones","year":"2022","journal-title":"Cem. Concr. Res."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"321","DOI":"10.1016\/S0958-9465(00)00016-0","article-title":"Structure and properties of aerated concrete: A review","volume":"22","author":"Narayanan","year":"2000","journal-title":"Cem. Concr. Compos."},{"key":"ref_15","unstructured":"Concrete, A. (1987). Guide for Structural Lightweight, ACI."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2821","DOI":"10.1016\/j.conbuildmat.2009.02.038","article-title":"Influence of volume fraction and characteristics of lightweight aggregates on the mechanical properties of concrete","volume":"23","author":"Ke","year":"2009","journal-title":"Constr. Build. Mater."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"632","DOI":"10.1007\/BF02485971","article-title":"Experimental investigation on the use of fly ash for lightweight precast structural elements","volume":"29","author":"Dinelli","year":"1996","journal-title":"Mater. Struct."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"432","DOI":"10.1016\/j.enbuild.2016.12.049","article-title":"Ultra-lightweight concrete: Energy and comfort performance evaluation in relation to buildings with low and high thermal mass","volume":"138","author":"Roberz","year":"2017","journal-title":"Energy Build."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"460","DOI":"10.1016\/j.conbuildmat.2016.06.018","article-title":"Contribution of structural lightweight aggregate concrete to the reduction of thermal bridging effect in buildings","volume":"121","author":"Real","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1398","DOI":"10.1016\/j.fuel.2004.09.030","article-title":"Utilising unprocessed low-lime coal fly ash in foamed concrete","volume":"84","author":"Jones","year":"2005","journal-title":"Fuel"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"102047","DOI":"10.1016\/j.jobe.2020.102047","article-title":"Synthesis of sustainable lightweight foamed concrete using palm oil fuel ash as a cement replacement material","volume":"35","author":"Alnahhal","year":"2021","journal-title":"J. Build. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"103377","DOI":"10.1016\/j.cemconcomp.2019.103377","article-title":"Synthesis and characterization of 3D-printable geopolymeric foams for thermally efficient building envelope materials","volume":"104","author":"Alghamdi","year":"2019","journal-title":"Cem. Concr. Compos."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"104151","DOI":"10.1016\/j.cemconcomp.2021.104151","article-title":"Collapse of fresh foam concrete: Mechanisms and influencing parameters","volume":"122","author":"Dhasindrakrishna","year":"2021","journal-title":"Cem. Concr. Compos."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"119271","DOI":"10.1016\/j.conbuildmat.2020.119271","article-title":"3D-printable lightweight foamed concrete and comparison with classical foamed concrete in terms of fresh state properties and mechanical strength","volume":"254","author":"Falliano","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Markin, V., Nerella, V.N., Schr\u00f6fl, C., Guseynova, G., and Mechtcherine, V. (2019). Material design and performance evaluation of foam concrete for digital fabrication. Materials, 12.","DOI":"10.20944\/preprints201906.0289.v1"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"104687","DOI":"10.1016\/j.cemconcomp.2022.104687","article-title":"Enhancing the properties of foam concrete 3D printing using porous aggregates","volume":"133","author":"Pasupathy","year":"2022","journal-title":"Cem. Concr. Compos."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"108800","DOI":"10.1016\/j.compositesb.2021.108800","article-title":"Rheology and application of buoyant foam concrete for digital fabrication","volume":"215","author":"Cho","year":"2021","journal-title":"Compos. Part B Eng."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"104158","DOI":"10.1016\/j.cemconcomp.2021.104158","article-title":"Influence of hydroxypropyl methylcellulose and silica fume on stability, rheological properties, and printability of 3D printing foam concrete","volume":"122","author":"Liu","year":"2021","journal-title":"Cem. Concr. Compos."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"610","DOI":"10.1016\/j.conbuildmat.2017.05.021","article-title":"Immobilizing bacteria in expanded perlite for the crack self-healing in concrete","volume":"148","author":"Zhang","year":"2017","journal-title":"Constr. Build. Mater."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s43452-020-00017-1","article-title":"Mechanical behaviors of 3D printed lightweight concrete structure with hollow section","volume":"20","author":"Wang","year":"2020","journal-title":"Arch. Civ. Mech. Eng."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"126187","DOI":"10.1016\/j.conbuildmat.2021.126187","article-title":"Lightweight foam concrete containing expanded perlite and glass sand: Physico-mechanical, durability, and insulation properties","volume":"320","author":"Gencel","year":"2022","journal-title":"Constr. Build. Mater."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"128652","DOI":"10.1016\/j.conbuildmat.2022.128652","article-title":"Mechanical properties and frost resistance of self-healing concrete based on expended perlite immobilized bacteria","volume":"348","author":"Jiang","year":"2022","journal-title":"Constr. Build. Mater."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"772","DOI":"10.1002\/best.201700046","article-title":"Infraleichtbeton: Reif f\u00fcr die Praxis","volume":"112","author":"Schlaich","year":"2017","journal-title":"Beton-Und Stahlbetonbau"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"103884","DOI":"10.1016\/j.jobe.2021.103884","article-title":"Foam stability of 3D printable foamed concrete","volume":"47","author":"Cho","year":"2022","journal-title":"J. Build. Eng."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"T\u00fcrkmen, \u0130., and Kantarci, A. (2006). Effects of Expanded Perlite Aggregate and Different Curing Conditions on the Drying Shrinkage of Self-Compacting Concrete, CSIR.","DOI":"10.1016\/j.buildenv.2006.06.002"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"2378","DOI":"10.1016\/j.buildenv.2006.06.002","article-title":"Effects of expanded perlite aggregate and different curing conditions on the physical and mechanical properties of self-compacting concrete","volume":"42","year":"2007","journal-title":"Build. Environ."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1252","DOI":"10.1061\/(ASCE)MT.1943-5533.0000134","article-title":"HSC with expanded perlite aggregate at wet and dry curing conditions","volume":"22","author":"Demirboga","year":"2010","journal-title":"J. Mater. Civ. Eng."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1016\/j.conbuildmat.2015.08.015","article-title":"Mechanical and thermophysical properties of lightweight aggregate concretes","volume":"96","author":"Oktay","year":"2015","journal-title":"Constr. Build. Mater."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1016\/j.conbuildmat.2016.05.019","article-title":"Effect of perlite waste addition on the properties of autoclaved aerated concrete","volume":"120","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"338","DOI":"10.1016\/j.conbuildmat.2016.06.001","article-title":"A synopsis about perlite as building material\u2013A best practice guide for Civil Engineer","volume":"121","author":"Rashad","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"120167","DOI":"10.1016\/j.conbuildmat.2020.120167","article-title":"Lightweight aggregate concrete with an open structure and a porous matrix with an improved ratio of compressive strength to dry density","volume":"264","author":"Schumacher","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Othman, R., Jaya, R.P., Muthusamy, K., Sulaiman, M., Duraisamy, Y., Abdullah, M.M.A.B., Przyby\u0142, A., Sochacki, W., Skrzypczak, T., and Vizureanu, P. (2021). Relation between density and compressive strength of foamed concrete. Materials, 14.","DOI":"10.3390\/ma14112967"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"9967","DOI":"10.1016\/j.ceramint.2022.11.174","article-title":"Synthesis of calcined kaolin-based geopolymer foam: Assessment of mechanical properties, thermal insulation, and elevated temperature stability","volume":"49","author":"Matalkah","year":"2023","journal-title":"Ceram. Int."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Peng, X., Shuai, Q., Li, H., Ding, Q., Gu, Y., Cheng, C., and Xu, Z. (2020). Fabrication and fireproofing performance of the coal fly ash-metakaolin-based geopolymer foams. Materials, 13.","DOI":"10.3390\/ma13071750"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"183","DOI":"10.1016\/j.cemconres.2017.05.014","article-title":"On the measurement of evolution of structural build-up of cement paste with time by static yield stress test vs. small amplitude oscillatory shear test","volume":"99","author":"Yuan","year":"2017","journal-title":"Cem. Concr. Res."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"288","DOI":"10.1016\/j.cemconcomp.2017.11.019","article-title":"Distinguishing dynamic and static yield stress of fresh cement mortars through thixotropy","volume":"86","author":"Qian","year":"2018","journal-title":"Cem. Concr. Compos."}],"container-title":["Applied Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2076-3417\/14\/15\/6796\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:29:49Z","timestamp":1760110189000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2076-3417\/14\/15\/6796"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,8,4]]},"references-count":46,"journal-issue":{"issue":"15","published-online":{"date-parts":[[2024,8]]}},"alternative-id":["app14156796"],"URL":"https:\/\/doi.org\/10.3390\/app14156796","relation":{},"ISSN":["2076-3417"],"issn-type":[{"type":"electronic","value":"2076-3417"}],"subject":[],"published":{"date-parts":[[2024,8,4]]}}}