国外硅灰对于硅酸盐水泥水化影响分析研究 材料学专业VIP专享VIP免费

摘要本文采用了硅酸盐水泥来制作标准的硅酸盐水泥试件，研究了养护条件以及硅灰掺量对于硅酸盐水泥水化性能以及微观产物的影响。在此基础上，研究了低温情况下硅灰对于硅酸盐水泥性能的影响。以及硅灰对于硅酸盐水泥水化产物和力学性能的影响。研究结果表明：硅灰掺量的提高可以明显提高普通硅酸盐水泥早期抗压、抗折强度，改善普通硅酸盐水泥耐久性及耐水性能。当硅灰掺量为8%时，普通硅酸盐水泥抗压强度可以达到最大值。水化结果表明，养护机制可以明显的影响普通硅酸盐水泥水化产物含量，低温养护状态下的普通硅酸盐水泥水化产物变化较大，进而影响普通硅酸盐水泥的抗压、抗折强度。关键词：硅酸盐水泥；水化性能；低温；硅灰AbstractInthispaper,ordinaryportlandcementwasusedtomakestandardportlandcementspecimens.Theeffectsofcuringconditionsandsilicafumecontentonhydrationpropertiesandmicroscopicproductsofportlandcementwerestudied.Onthebasisofthis,theeffectofsilicafumeonthepropertiesofportlandcementatlowtemperaturewasstudied.Andtheeffectofsilicafumeonhydrationproductsandmechanicalpropertiesofportlandcement.Resultsshowthat,Theincreaseofsilicafumecontentcanobviouslypromotetheearlycompressiveandflexuralstrengthofordinaryportlandcementandimprovethedurabilityandwaterresistanceofordinaryportlandcement.Whenthecontentofsilicafumeis8%,thecompressivestrengthofordinaryportlandcementcanreachthemaximum.Thehydrationresultsshowthatthecuringmechanismcanobviouslyaffectthecontentofhydrationproductsofordinaryportlandcement.thehydrationproductsofordinaryportlandcementchangegreatlyunderlowtemperaturecuring,thusaffectingthecompressivestrengthandflexuralstrengthofordinaryportlandcement.Keywords:portlandcement;Hydrationperformance;Lowtemperature;Silicafume目录摘要................................................................IAbstract.............................................................II目录..............................................................III1绪论...............................................................11.1研究的目的和意义...............................................................................................11.2国内外研究现状...................................................................................................21.2.1国外硅灰对于硅酸盐水泥水化影响的研究现状....................................21.2.2国内硅灰对于硅酸盐水泥水化影响的研究现状....................................31.4目前存在的问题...................................................................................................41.5研究内容...............................................................................................................51.6技术路线...............................................................................................................52试验材料及测试方法..................................................72.1主要试剂...............................................................................................................72.1.1普通硅酸盐水泥........................................................................................72.1.2硅灰............................................................................................................72.1.3砂子............................................................................................................82.1.4水................................................................................................................82.1.5减水剂.................