机制砂颗粒形状对砂浆流变性能的影响研究_《混凝土与水泥制品》杂志社

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



机制砂颗粒形状对砂浆流变性能的影响研究

Study of the Effect of Manufactured Sand Particle Shape on Mortar Rheological Property

2020年第5期

机制砂；颗粒形状；流变性能；屈服应力；表观黏度

Manufactured sand; Particle shape; Rheological property; Yield stress; Apparent viscosity

2020年第5期

10.19761/j.1000-4637.2020.05.001.05

国家自然科学基金面上项目（51578268）。

周新文1,2，刘建忠2,3，刘光严3，刘加平1,2

1.东南大学材料科学与工程学院，南京 211189；2.高性能土木工程材料国家重点实验室，南京210008；3.江苏苏博特新材料股份有限公司，南京 211103

周新文1,2，刘建忠2,3，刘光严3，刘加平1,2

周新文,刘建忠,刘光严,等.机制砂颗粒形状对砂浆流变性能的影响研究[J].混凝土与水泥制品,2020(5):1-5.

ZHOU X W,LIU J Z,LIU G Y,et al.Study of the Effect of Manufactured Sand Particle Shape on Mortar Rheological Property[J].China Concrete and Cement Products,2020(5):1-5.

浏览量:

1000

摘要：为研究机制砂颗粒形状对砂浆流变性能的影响，使用数字图像处理技术（DIP）对砂颗粒形状进行了定量表征，设计试验测量了砂浆流变曲线并计算了砂浆屈服应力与表观黏度。结果表明，机制砂的长宽比（E）、宽高比（F）比天然河砂分别大14%、18%，说明机制砂棒状和片状程度高于天然河砂；砂浆流变曲线反映出砂颗粒形状不规则会导致砂浆流动阻力增大，在高体积分数下更为显著；根据Chateau模型拟合40%体积分数机制砂砂浆屈服应力是天然河砂的1.5倍；砂浆表观黏度分析发现，机制砂砂浆表观黏度大于天然河砂，在低剪切速率下尤其明显。Abstract:Tostudytheeffectsofmanufacturedsandshapeonmortarrheologyproperty,thedigitalimageprocessing(DIP)methodwasusedtocharacterizesandparticleshapequantitatively,testsofmortarrheologycurvewereperformedanditsyieldstresswascalculatedbyrheologytest.ResultsshowthatEofmanufacturedsand(MS3)is14%biggerthanthatofriversand(RS),FofMS2is18%biggerthanthatofRS,consequently,soparticleshapeofMSismoreelongateandflatthanthatofRS.Besides,rheologycurveresultsshowthattheirregularshapesandwillincreaseresistancewhenmortarflowing,andtheeffectbecomesmoresignificantwithsandvolumeincreasing.BasedonChateaumodel,it′spredictedthatfor40%sandvolumemortar,yieldstressofMS3is1.5timesasRSduetoitsirregularsandshapeofMS3.

英文名 : Study of the Effect of Manufactured Sand Particle Shape on Mortar Rheological Property

刊期 : 2020年第5期

关键词 : 机制砂；颗粒形状；流变性能；屈服应力；表观黏度

Key words : Manufactured sand; Particle shape; Rheological property; Yield stress; Apparent viscosity

刊期 : 2020年第5期

DOI : 10.19761/j.1000-4637.2020.05.001.05

文章编号 :

基金项目 : 国家自然科学基金面上项目（51578268）。

作者 : 周新文1,2，刘建忠2,3，刘光严3，刘加平1,2

单位 : 1.东南大学材料科学与工程学院，南京 211189；2.高性能土木工程材料国家重点实验室，南京210008；3.江苏苏博特新材料股份有限公司，南京 211103

周新文1,2，刘建忠2,3，刘光严3，刘加平1,2

周新文,刘建忠,刘光严,等.机制砂颗粒形状对砂浆流变性能的影响研究[J].混凝土与水泥制品,2020(5):1-5.

ZHOU X W,LIU J Z,LIU G Y,et al.Study of the Effect of Manufactured Sand Particle Shape on Mortar Rheological Property[J].China Concrete and Cement Products,2020(5):1-5.





摘要

参数

结论

参考文献

引用本文

Abstract: To study the effects of manufactured sand shape on mortar rheology property, the digital image processing(DIP) method was used to characterize sand particle shape quantitatively, tests of mortar rheology curve were performed and its yield stress was calculated by rheology test. Results show that E of manufactured sand(MS3) is 14% bigger than that of river sand(RS), F of MS2 is 18% bigger than that of RS, consequently, so particle shape of MS is more elongate and flat than that of RS. Besides, rheology curve results show that the irregular shape sand will increase resistance when mortar flowing, and the effect becomes more significant with sand volume increasing. Based on Chateau model, it′s predicted that for 40% sand volume mortar, yield stress of MS3 is 1.5 times as RS due to its irregular sand shape of MS3.

关键词:

机制砂；颗粒形状；流变性能；屈服应力；表观黏度

扫二维码用手机看

[1] 黄文聪,黄海斌,胡文刚.机制砂特性及其对预制沉管新拌混凝土性能影响研究[J].混凝土与水泥制品,2018(11):34-38.

[2] 靳丽莲,张国荣,路璐,等.贵州地区桥梁用机制砂混凝土原材料优选研究[J].混凝土与水泥制品,2017(2):45-49.

[3] 柯国炬,王佳茜,田波,等.机制砂混凝土可泵性影响因素研究[J].混凝土与水泥制品,2016(2):11-14.

[4] 李振怀,甘洋宇,管民生,等.机制砂物理特性对高强混凝土工作性能和强度的影响[J].混凝土与水泥制品.2018(8):93-96.

[5] 胡晓曼,董献国.石粉含量对C80混合砂高性能混凝土性能的影响[J].混凝土与水泥制品,2014(3):23-25.

[6] 李果,白文辉.机制砂配制泵送防水混凝土的研究和应用[J].混凝土与水泥制品,2013(1):79-82.

[7] 张礼华,刘来宝,周永生,等.石粉含量对机制砂混凝土力学性能与微观结构的影响[J].混凝土与水泥制品,2011(12):22-26.

[8] 胡晓曼,李亚南.C80高石粉含量机制砂高性能混凝土试验研究[J].混凝土与水泥制品,2017(3):27-30.

[9] 刘晓东.石粉作掺合料对机制砂高性能混凝土性能的影响[J].混凝土与水泥制品,2015(10):24-26.

[10] 鄢佳佳,邓翀,叶仙松.白云岩石粉比表面积对水泥砂浆性能的影响研究[J].混凝土与水泥制品,2018(3):7-10.

[11] SHEN W G.Influence of manufactured sand′s characteristic on its concrete performance[J].Construction and Building Materials,2018(172):574-583.

[12] LIM S K.Effect of different sand grading on strength properties of cement grout[J].Construction and Building Materials,2013(38):348-355.

[13] 芮捷,刘唐志,王兵,等.机制砂级配对高强混凝土性能的影响研究[J].中外公路,2014,34(1):298-300.

[14] 艾长发,彭浩,胡超,等.机制砂级配对混凝土性能的影响规律与作用效应[J].混凝土,2013(1):73-76.

[15] 胡建伟,闻宝联.机制砂级配对水泥砂浆性能的影响规律及作用效应[J].混凝土世界,2015(11):88-91.

[16] 王蒙,曹银,王玲,等.骨料级配及砂浆富余系数对防辐射混凝土性能的影响[J].混凝土与水泥制品,2019(6):1-4.

[17] HUANG Y M.Effect of Particle Shape of Limestone Manufactured Sand and Natural Sand on Concrete[J].procedia engineering,2017,210:87.

[18] SHEN W,YANG Z,CAO L,et al.Characterization of manufactured sand: Particle shape, surface texture and behavior in concrete[J].Construction and Building Materials,2016,114:595-601.

[19] WESTERHOLM M,LAGERBLAD B,SILFWERBRAND J,et al.Influence of fine aggregate characteristics on the rheological properties of mortars[J].Cement and Concrete Composites,2008,30(4):274-282.

[20] GONCALVES J P,TAVARES L M,TOLEDO F R D,et al.Comparison of natural and manufactured fine aggregates in cement mortars[J].Cement and Concrete Research,2007,37(6):924-932.

[21] LI B,KE G,ZHOU M.Influence of manufactured sand characteristics on strength and abrasion resistance of pavement cement concrete[J].Construction and Building Materials,2011,25(10):3849-3853.

[22] ARAGAO F T S,PAZOS A R G,MOTTA L M G D,et al. Effects of morphological characteristics of aggregate particles on the mechanical behavior of bituminous paving mixtures[J].Construction and Building Materials,2016,123:444-453.

[23] 宋少民,郭丹.机制砂片状颗粒含量对水泥胶砂与混凝土性能的影响[J].混凝土,2015,12(12):60-62.

[24] HAFID H,OVARLEZ G,TOUSSAINT F,et al.Assessment of potential concrete and mortar rheometry artifacts using magnetic resonance imaging[J].Cement and Concrete Research,2015,71: 29-35.

[25] HUANG Y M,WANG L H.Effect of Particle Shape of Limestone Manufactured Sand and Natural Sand on Concrete[J].Procedia Engineering,2017,210:87-92.

[26] SHEN W,YANG Z,CAO L,et al.Characterization of manufactured sand: Particle shape, surface texture and behavior in concrete[J]. Construction and Building Materials,2016,114:595-601.

[27] GONCALVES J P,TAVARES L M,TOLEDO F R D,et al. Comparison of natural and manufactured fine aggregates in cement mortars[J].Cement and Concrete Research,2007,37(6):924-932.

[28] SHEN W,LIU Y,WANG Z,et al.Influence of manufactured sand's characteristics on its concrete performance[J].Construction and Building Materials,2018,172:574-583.

[29] TOUTOU Z,ROUSSEL N.Multi Scale Experimental Study of Concrete Rheology: From Water Scale to Gravel Scale[J].Materials and Structures,2007,39(2):189-199.

[30] WILLIAMS D A,SAAK A W,JENNINGS H M.The influence of mixing on the rheology of fresh cement paste[J].Cement and Concrete Research,1999,29(9):1491-1496.

[31] HAFID H,OVARLEZ G,TOUSSAINT F,et al.Effect of particle morphological parameters on sand grains packing properties and rheology of model mortars[J].Cement and Concrete Research.2016,80:44-51.

[32] OVARLEZ G,BERTRAND F,RODTS S.Local determination of the constitutive law of a dense suspension of noncolloidal particles through magnetic resonance imaging[J].Journal of Rheology,2006,50(3):259-292.

[33] KRIEGER I M,DOUGHERTY T J.A Mechanism for Non‐Newtonian Flow in Suspensions of Rigid Spheres[J].Transactions of the Society of Rheology,1959,3(1):137-152.

上一个

JC/T 2554—2019《蒸养混凝土制品用掺合料》标准解读

下一个

3D打印水泥基材料的建造性研究

头部文案

机制砂颗粒形状对砂浆流变性能的影响研究

相关文件