190IndustrialConstructionVol.53,No.4,2023工业建筑2023年第53卷第4期综述3D打印生土建筑技术研究进展∗史庆轩1,2霍建2武喜凯2陶毅1,2(1.西部绿色建筑国家重点实验室,西安710055;2.西安建筑科技大学土木工程学院,西安710055)摘要:3D打印技术的潜在建造优势对推动建筑工业化具有重要意义,将其应用到生土建筑中是目前国内外关注和研究的重点之一。首先从3D打印生土原材料的组成、生土满足3D打印需要的流变性、生土干燥引起的收缩开裂等方面综述了3D打印生土原材料的制备技术,总结了生土从打印喷嘴的可挤出性、可打印的最大高度,分析了喷嘴形状和尺寸、打印速度和路径等工艺参数对3D打印生土成型的影响,重点综述了3D打印生土硬化后的抗压强度、层间黏结强度的研究现状,最后介绍了3D打印生土建筑技术面临的问题以及对未来的展望,为3D打印生土建筑技术的研究与发展提供参考。关键词:3D打印;生土建筑;打印工艺;可打印性能;力学性能DOI:10.13204/j.gyjzG22042612Advancesin3DPrintingRawSoilConstructionTechnologySHIQingxuan1,2HUOJian2WUXikai2TAOYi1,2(1.StateKeyLaboratoryofGreenBuildinginWesternChina,Xi’an710055,China;2.SchoolofCivilEngineering,Xi′anUniversityofArchitecture&Technology,Xi’an710055,China)Abstract:Thepotentialconstructionadvantagesof3Dprintingtechnologyareofgreatsignificancetopromotethebuildingindustrialization,anditsapplicationtorawsoilconstructionisoneofthefocusesofattentionandresearchathomeandabroad.Firstly,thepreparationtechnologyof3Dprintingrawsoilwasreviewedfromtheaspectsofthecompositionof3Dprintingrawmaterials,therheologyofrawsoiltomeettherequirementsof3Dprinting,andtheshrinkageandcrackingcausedbydryingofrawsoil.Theextrudabilityandmaximumheightofrawsoilfromtheprintingnozzleweresummarized.Theinfluenceofprocessparameterssuchasnozzleshapeandsize,printingspeedandpathonthemoldingof3Dprintingrawsoilwasanalyzed.Thispapermainlysummarizedtheresearchstatusofcompressivestrengthandinterlayerbondstrengthof3Dprintedrawsoilafterhardening,andfinallyintroducedtheproblemsfacedby3Dprintingrawsoilconstructiontechnologyandtheprospectofthefuture,whichcouldprovideareferencefortheresearchanddevelopmentof3Dpri...
