{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T10:51:29Z","timestamp":1774349489472,"version":"3.50.1"},"reference-count":219,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T00:00:00Z","timestamp":1774224000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"2026 Zhejiang Provincial Philosophy and Social Sciences Planning Annual Regular Project","award":["26NDJC017YBM"],"award-info":[{"award-number":["26NDJC017YBM"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Buildings"],"abstract":"<jats:p>As a representative digital additive construction material, three-dimensional printed concrete (3DPC) imposes a synergistic rheological requirement on fresh cementitious mixtures, namely \u201cpumpability\u2013extrudability\u2013buildability,\u201d throughout the forming process. Rheological parameters and their temporal evolution not only govern the stability of the material during pumping, nozzle extrusion, and layer-by-layer deposition, but also directly determine interlayer interfacial integrity, geometric fidelity, and the development of macroscopic mechanical performance. This paper provides a systematic review of the regulation strategies and evolutionary characteristics of 3DPC rheology, with particular emphasis on how raw material composition, printing parameters, and multiscale evolution mechanisms influence yield stress, plastic viscosity, and thixotropic behavior. The time-dependent evolution of rheological properties is elucidated across multiple length scales, encompassing microscopic particle interactions and hydration-induced bridging, mesoscopic aggregate force-chain networks and particle migration, and macroscopic shear stimulation coupled with temperature\u2013humidity effects. On this basis, it is further highlighted that existing models and characterization frameworks remain insufficient to capture the time-dependent structural evolution under realistic printing conditions. Therefore, the establishment of unified characterization standards, together with in situ rheological measurements and multiscale simulations, is urgently required to enable the coordinated optimization of material design and printing processes and to facilitate engineering-scale implementation.<\/jats:p>","DOI":"10.3390\/buildings16061264","type":"journal-article","created":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T11:59:36Z","timestamp":1774267176000},"page":"1264","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Review of the Rheological Properties of 3D-Printed Concrete: Raw Materials, Printing Parameters, and Evolution Mechanisms"],"prefix":"10.3390","volume":"16","author":[{"given":"Jianfen","family":"Luo","sequence":"first","affiliation":[{"name":"School of Architecture and Environmental Engineering, Shaoxing Institute of Technology, Shaoxing 312000, China"}]},{"given":"Qidong","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Architecture and Environmental Engineering, Shaoxing Institute of Technology, Shaoxing 312000, China"}]},{"given":"Lijia","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Architecture and Environmental Engineering, Shaoxing Institute of Technology, Shaoxing 312000, China"}]},{"given":"Mingyue","family":"Fang","sequence":"additional","affiliation":[{"name":"Ningbo Tianyi Green Ecological Technology, Ningbo 315000, China"}]}],"member":"1968","published-online":{"date-parts":[[2026,3,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1016\/j.cemconres.2018.06.001","article-title":"Vision of 3D printing with concrete\u2014Technical, economic and environmental potentials","volume":"112","author":"Lesage","year":"2018","journal-title":"Cem. 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