粗骨料对自密实混凝土流变性能影响的研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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粗骨料对自密实混凝土流变性能影响的研究

Study of Effects of Coarse Aggregate on Rheological Properties for Self-compacting Concrete

２０17年第3期

自密实混凝土；粗骨料间距系数；坍落扩展度；V型漏斗流出时间

Self-compacting concrete; Coarse aggregate-space coefficient; Slump flow; V-funnel flow time

２０17年第3期

1000-4637（2017）03-05-04

北京市自然科学基金重大项目（8100001）

蒋玉川，王阳，许金娥

中国建材检验认证集团股份有限公司，中国建筑材料科学研究总院，北京 100024

蒋玉川，王阳，许金娥

蒋玉川,王阳,许金娥.粗骨料对自密实混凝土流变性能影响的研究[J].混凝土与水泥制品,2017(3):5-8.

JIANG Y C, WANG Y, XU J E.Study of Effects of Coarse Aggregate on Rheological Properties for Self-compacting Concrete[J].China Concrete and Cement Products,2017(3):5-8.

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摘要：研究了粗骨料间距系数对自密实混凝土流变性能的影响。试验结果表明，在粗骨料最大粒径为16mm、砂子与砂浆体积比为0.43、水胶比为0.38情况下，粗骨料间距系数对自密实混凝土拌合物坍落扩展度和V型漏斗流出时间有显著影响。粗骨料间距系数越大，坍落扩展度越大，V型漏斗流出时间越小。本文试验条件下，自密实混凝土粗骨料间距系数取值范围为1.31～1.58较为合适，既可以保证拌合物具有优良的流变性能，又可以保证混凝土的稳定性。本文试验中，粗骨料间距系数对抗压强度影响不大。Abstract:Theinfluenceofcoarseaggregate-spacecoefficientontherheologicalperformanceofself-compactingconcrete(SCC)isstudied.Theresultsindicatethatcoarseaggregate-spacecoefficienthassignificantinfluenceonslumpflowandV-funnelflowtimeofSCC,whenthemaximumaggregateparticlesizeis16mmandthevolumeratioofsandandmotoris0.43,meanwhilewaterbinderratiois0.38.Thehighercoarseaggregate-spacecoefficient,thelagerslumpflowandtheshorterV-funnelflowtime.Therangeofcoarseaggregate-spacecoefficientofSCCissuitablefor1.31～1.58undertheconditionofthepaper.ThesuitablerangecanguaranteeexcellentrheologicalperformanceandstabilityofSCCmixture.Thereislittleeffectofcoarseaggregate-spacecoefficientoncompressivestrengthinthispapertests.

英文名 : Study of Effects of Coarse Aggregate on Rheological Properties for Self-compacting Concrete

刊期 : ２０17年第3期

关键词 : 自密实混凝土；粗骨料间距系数；坍落扩展度；V型漏斗流出时间

Key words : Self-compacting concrete; Coarse aggregate-space coefficient; Slump flow; V-funnel flow time

刊期 : ２０17年第3期

DOI :

文章编号 : 1000-4637（2017）03-05-04

基金项目 : 北京市自然科学基金重大项目（8100001）

作者 : 蒋玉川，王阳，许金娥

单位 : 中国建材检验认证集团股份有限公司，中国建筑材料科学研究总院，北京 100024

蒋玉川，王阳，许金娥

蒋玉川,王阳,许金娥.粗骨料对自密实混凝土流变性能影响的研究[J].混凝土与水泥制品,2017(3):5-8.

JIANG Y C, WANG Y, XU J E.Study of Effects of Coarse Aggregate on Rheological Properties for Self-compacting Concrete[J].China Concrete and Cement Products,2017(3):5-8.

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摘要

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结论

参考文献

引用本文

Abstract: The influence of coarse aggregate-space coefficient on the rheological performance of self-compacting concrete (SCC) is studied. The results indicate that coarse aggregate-space coefficient has significant influence on slump flow and V-funnel flow time of SCC, when the maximum aggregate particle size is 16mm and the volume ratio of sand and motor is 0.43, meanwhile water binder ratio is 0.38. The higher coarse aggregate-space coefficient, the lager slump flow and the shorter V-funnel flow time. The range of coarse aggregate-space coefficient of SCC is suitable for 1.31～1.58 under the condition of the paper. The suitable range can guarantee excellent rheological performance and stability of SCC mixture. There is little effect of coarse aggregate-space coefficient on compressive strength in this paper tests.

关键词:

自密实混凝土；粗骨料间距系数；坍落扩展度；V型漏斗流出时间

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粗骨料对自密实混凝土流变性能影响的研究

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