泡沫摻量對(duì)再生細(xì)骨料泡沫混凝土性能影響分析

Analysis of the Effect of Foam Dosage on the Performance of Recycled Fine Aggregate Foamed Concrete

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中圖分類號(hào)：U414 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1005-8249（2025）01-0001-06

DOI：10.19860/j.cnki.issn1005-8249.2025.01.001

CAI Yanxial，23，LUO Shuai'，QIU Wei4，GAO Jiaqi23，XUE Xiaojie4，LI Lihui3 (1.School of Civil Engineering，Hebei University of Engineering，Handan O56038，China； 2. Beijing Zhonglu Gaoke Highway Technology Co.，Ltd.，Beijing 1OOO88，China； 3. Research Institute of Highway Ministry of Transport， Beijing 1OOO88，China； 4.Guangzhou Expressway Technology Co.，Ltd.，Guangzhou 510OOO，China）

Abstract：Inorder to achievethe high-valueutilizationofrecycledfineaggregatefrom wasteconcrete，thestudyinvestigated theinfluenceof diferent foamdosagesandthepresenceof polypropylenefibersontheworkabilityproperties，suchaswet density，flowability，andcompresivestrengthofrecycledfineaggegatefoamedconcrete.Bycombining variousfitig forms， therelationshipbetweenfoamdosageandcompresivestrength wasanalyzed.Theresearch showedthat withanincrease in foam dosage，thewetdensityofrecycledfineaggregatefoamedconcretedecreasedsignificantly，whiletheflowabilityandcopresive strengthdecreased.Theaditionofpolypropylenefibershaddiferentefectsonthewetdensityandflowabilityofrecycled fine aggregatefoamedconcretewithdiferentfoamdosages，butitdidnothaveasignificantimprovementefectoncompressive strength.According tothe presenceorabsenceof polypropylene fibers，theoptimal fiting forms fortherelationship between foamdosageandstrengthofrecycledfineaggregate foamedconcretewereexponentialfitingandpolyomialfiting，respectively.

Key words：recycled fine aggregates；foamed concrete；compressive strength；foam content；polypropylene fiber

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0 引言

隨著國(guó)家經(jīng)濟(jì)的不斷發(fā)展，在改擴(kuò)建中舊建（構(gòu)）筑物被拆除，產(chǎn)生了大量廢舊混凝土。（剩余11490字）