不同掺合料对3D打印复合浆体流变性能的影响

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中图分类号：TU52 文献标志码：A 文章编号：1005-8249（2025）03-0068-05

DOI：10.19860/j.cnki.issn1005-8249.2025.03.013

Abstract：Theefectsofsingleaditionofsilicafume，flyash，mineralpowderandtheirmutualblendingontherheological propertiesandconstructabilityof3Dprintingcompositeslurywere investigated.Theresultsshowthatthe staticyieldstresof theslurywithsingleadditionofflyash，mineralpowderandsilicafumegraduallyincreaseswiththeincreaseoftheadition amount.Withtheincreaseof theadditionamountofflyashandmineralpowder，thecylindercollpsedegreeandfluidityofthe slurry showanincreasing trend，whiletheadionofsilicafumeshowstheopposite trend.Whenthethreeare addedmutually， the possible rules may be different from those of single addition. When 4% silica fume is added singly，the yield stress and fluidity are good；when 5% mineral powder is added singly，the effect is the best；when 30% fly ash isadded singly，the rheological propertiesofthesluryarethebest.Whenthethreeareaddedmutually，therheologyandconstructabilityof the3D printing composite slurry are the best when the addition amount of silica fume is 4% ，the addition amount of mineral powder is 5% ，and the addition amount of fly ash is 10% ：

Key words： silica fume； fly ash；mineral powder； compound addition； rheological property

0 引言

3D打印混凝土可打印性能的表征和优化为当下的研究热点之一。（剩余6476字）