3D打印沙漠砂混凝土的可行性研究.pdfVIP

全国中文核心期刊幷症jl贰柑軸中国科技核心期刊

3D打印沙漠砂混凝土的可行性研究

孙晓燕，叶柏兴,王海龙，陈龙

(浙江大学建筑工程学院,浙江杭州310058)

摘要：D打印材料的研发与应用逐渐成为土木建筑等领域的研究热点,利用沙漠砂作为3D打印材料的新型骨料,既能解决建

筑用砂匮乏的问题,又能缓解土地荒漠化造成的污染。为了推进建筑结构的绿色低碳和智能化发展,从适用性、安全性、经济性和环

保性4个方面论证了将沙漠砂混凝土应用于3D打印的可行性。结果表明：沙漠砂与3D打印混凝土细骨料的工程性质相近,可填充

打印材料内部的微小空隙，用沙漠砂替代部分骨料，对混凝土强度的影响可控制在5%以内，不显著降低其耐久性能,可降低工程造

价;沙漠砂的开采还能起到合理利用自然资源和防沙治沙的作用。

关键词:3D打印；沙漠砂；新型骨料；沙漠砂混凝土

中图分类号:TU528.01文献标识码:A文章编号：1001-702X(2021)05-0038-04

Feasibilityanalysisof3Dprintedconcretecontainingdesertsand

SUNXiaoyan,YEBoxing,WANGHailong,CHENLong

(CollegeofCivilEngineeringandArchitecture,ZhejiangUniversity,Hangzhou310058,China)

Abstract:Thedevelopmentandapplicationof3Dprintingmaterialshasgraduallybecomeahottopicinthefieldsofcivil

engineeringandconstruction.Usingdesertsandasanewtypeofaggregatefor3Dprintingmaterialscannotonlysolvetheprob­

lemoflackofsandforconstruction,butalsoalleviatethepollutioncausedbydesertification.Inordertopromotethegreenand

low-carbonandintelligentdevelopmentofbuildingstructures,thefeasibilityofapplyingconcretecontainingdesertsandto3D

printingwasdiscussedintermsofapplicability,safety,economyandenvironmentalprotection.Theresultsshowthattheengineering

propertiesofdesertsandand3Dprintedconcretefineaggregatesaresimilar.Theycanfillthetinyvoidsinsidetheprintedmate­

rialsandreplacepartoftheaggregatewithdesertsand.Theimpactonconcretestrengthcanbecontrolledwithin5%withoutsig­

nificantlyreducingitsdurability,andtheprojectcostcanbereduced.Theminingofdesertsandc