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OALib Journal期刊
ISSN: 2333-9721
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热处理对mgo掺杂阿利特晶型与水化性能的影响
DOI: doi:10.3969/j.issn.1671-7627.2012.06.017, PP. 83-87
Keywords: 阿利特,热处理,晶体结构,水化性能
Abstract:
实验研究热处理过程对mgo掺杂阿利特的晶型与水化性能的影响,采用x线衍射仪(xrd)和透射电子显微镜(tem)表征样品晶体结构变化,并测试其水化活性。结果表明:当mgo掺量为0.5%、1.0%和2.0%时,室温下样品稳定的晶型分别为t2、t3和m3型。mgo掺量为0.5%与1.0%的阿利特,热处理对样品晶型几乎没有影响,仍为t2和t3型,而热处理使样品水化活性降低,48h累积水化放热量下降。mgo掺量为2.0%时,当样品在1100℃下热处理3h或1200℃下热处理1、3h后,晶型均发生明显转变,由单斜型转变为三斜型。由于晶型转变,阿利特产生大量的缺陷和应力,水化活性显著提高。另外,阿利特晶型的转变是一个动力学过程,与温度和时间紧密相关。
| [1] | taylorhfw.cementchemistry[m].london:academicpress,1997.
|
| [2] | bigarém,guiniera,mazièresc,etal.polymorphismoftricalciumsilicateanditssolidsolutions[j].jamceramsoc,1967,50(11):609-619.
|
| [3] | staněkt,sulovskyp.theinfluenceofthealitepolymorphismonthestrengthoftheportlandcement[j].cemconcrres,2002,32(7):1169-1175.
|
| [4] | thompsonra,killohdc,forresterja.crystalchemistryandreactivityofthemagnesiumoxide-stabilizedalites[j].jamceramsoc,1975,58(1/2):54-57.
|
| [5] | juillandp,galluccie,flattr,etal.dissolutiontheoryappliedtotheinductionperiodinalitehydration[j].cemconcrres,2010,40(6):831-844.
|
| [6] | delatorreág,deverarn,cuberosajm,etal.crystalstructureoflowmagnesium-contentalite:applicationtorietveldquantitativephaseanalysis[j].cemconcrres,2008,38(11):1261-1269.
|
| [7] | stephand,wistubas.crystalstructurerefinementandhydrationbehaviourof3cao·sio2solidsolutionswithmgo,al2o3andfe2o3[j].jeurceramsoc,2006,26(1/2):141-148.
|
| [8] | sinclairw,grovesgw.transmissionelectronmicroscopyandx-raydiffractionofdopedtricalciumsilicate[j].jamceramsoc,1984,67(5):325-330.
|
| [9] | urabek,nakanoh,moritah.structuralmodulationsinmonoclinictricalciumsilicatesolidsolutionsdopedwithzincoxide,m(ⅰ),m(ⅱ),andm(ⅲ)[j].jamceramsoc,2002,85(2):423-429.
|
| [10] | odleri,abdul-maulas.polymorphismandhydrationoftricalciumsilicatedopedwithzno[j].jamceramsoc,1983,66(1):1-4.
|
| [11] | urabek,shirakamit,iwashimam.superstructureinatriclinicphaseoftricalciumsilicate[j].jamceramsoc,2000,83(5):1253-1258.
|
| [12] | moritah,nakanoh,shirakamit,etal.superstructureoftricalciumsilicatedopedwithzno[j].keyengmater,2002,206-213:747-750.
|
| [13] | woermanne,hahnt,eyselw.chemicalandstructuralinvestigationsofsolidsolutionsoftricalciumsilicate[j].zemkalkgips,1963,12(9):371-375.
|
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