掺合料在再生砂浆中的试验研究大学本科毕业论文.doc

掺合料在再生砂浆中的试验研究

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掺合料在再生砂浆中的试验研究

摘要

随着人类社会的发展和人们环保意识的增强，建筑垃圾的回收利用成为工程界和科研界的热点问题之一。建筑废弃物再生细骨料回收利用研究在我国具有重要的实际意义。本次实验以某建筑物废弃砂浆块作为再生骨料，全面系统的研究天然骨料、再生骨料的各项物理性能。研究不同掺量的掺合料单掺、三掺对天然砂浆和再生砂浆的工作性能、力学性能的影响。得出结论：①单掺天然骨料：粉煤灰在20%；硅粉在30%；聚丙烯在1.2Kg/m3；抗折、抗压强度最高；②再生砂浆：粉煤灰在10%；硅粉在30%；聚丙烯在1.2Kg/m3；三掺（硅粉10%、变量粉煤灰10%、聚丙烯1.2Kg/m3)；三掺（变量硅粉20%、粉煤灰10%、聚丙烯1.2Kg/m

关键词:再生砂浆；硅粉；粉煤灰；聚丙烯；抗压、抗折强度；

ExPerimentalStudyAdmixtureintheregenerationofMortar

ABSTRACT

Alongwiththedevelopmentofhumansocietyandthepeopleenvironmentalprotectionconsciousnessenhancement,therecyclingofconstructionwastebecomeoneofthehotproblemintheengineeringandresearchcommunity.Constructionwasterecycledfineaggregaterecyclingresearchhasimportantpracticalsignificanceinourcountry.Theexperimenttoanabandonedbuildingmortarblocksasrecycledaggregates,acomprehensivesystemofresearchofnaturalaggregate,variousphysicalpropertiesofrecycledaggregates.Studyofdifferentdosageofadmixturesingledoped,threemixingofnaturalmortarandregenerationperformanceofmortar,theinfluenceofmechanicalproperties.Conclusions:(1)onlymixednaturalaggregate:in20%offlyash;Siliconpowderin30%;Polypropylenein1.2Kg/m3;Flexural,compressivestrength,thehighest;(2)regenerationmortar:in10%offlyash;Siliconpowderin30%;Polypropylenein1.2Kg/m3;Threemixed(siliconpowder10%,variable10%offlyash,polypropylene1.2Kg/m3);Threemixed(variablesiliconpowder20%,10%offlyash,polypropylene1.2Kg/m3)compressivestrength,flexuralstrengthisthehighest.Threemixedvariablesforthesiliconpowder10%~40%undertheconditionof28ddaysmaintenanceof7.5M,canbeappliedtoengineering,inordertoachievethepurposeofsavingenergyandreducingconsumption.

Keywords:regenerationofmortar;SiliconPowder;Flyash;PolyProPylene;ThecomPressiveandflexuralstrength;

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