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《不同水胶比下钢渣粉与陶瓷抛光砖粉对水泥水化性能的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第42卷第2期硅酸盐学报Vo1.42,No.22014年2月JOURNALOFTHECHINESECERAMICSOCIETYFebruary,2014不同水胶比下钢渣粉与陶瓷抛光砖粉对水泥水化性能的影响王功勋,谭琳,王佳骅,曹聪(湖南科技大学土木32程学院,湖南湘潭411201)摘要:以工业废弃物钢渣、陶瓷抛光砖粉为辅助胶凝材料,通过对单掺钢渣粉及陶瓷抛光砖粉水泥在不同水胶比下的强度、化学结合水、孑L溶液碱度及孔微观结构的测定,研究了在不同水胶比情况下,钢渣粉、陶瓷抛光砖粉在复合胶凝材料中对水泥水化性能的影响。结果表明:在相同
2、龄期下,水胶比的改变对掺钢渣粉水泥的抗压强度影响最为显著,其次是掺抛光砖粉水泥,而对纯水泥的影响程度最小;在相同掺量、相同龄期条件下,单掺钢渣粉、陶瓷抛光砖粉水泥试样的化学结合水含量均随水胶比的减小而减小,试样的孔溶液pH值和抗压强度则随水胶比减小而增大;水化体系微观结构随水胶比的减小变得更为致密。不论水胶比大小,掺钢渣粉水泥水化体系的孔溶液pH值和化学结合水含量较掺陶瓷抛光砖粉水泥的高,但其抗压强度却低于掺陶瓷抛光砖粉水泥试样,这表明抛光砖粉的火山灰活性及微集料填充效应较钢渣粉要强,其微观结构较为致密。关键词:钢渣粉;陶瓷抛光
3、砖粉;水胶比;强度;化学结合水含量;孔溶液碱度中图分类号:TU528文献标志码:A文章编号:0454-5648(2014)O2一O19O—O8网络出版时间:2O14—1—2113:32:00网络出版地址:http.//www.enid.net/kcrns/detail/1t.2310.TQ20140121.1332.006.htmlEffectofSteelSlagPowderandCeramicPolishingPowderonCementHydrationatDifferentWaterBinderRatioWANGGong
4、xun,TANLin,WANGJiahua,CAOCong(SchoolofCivilEngineering,HunanUniversityofScienceandTechnology,Xiangtan411201,Hunan-China)Abstract:CompositecementitiousmaterialswerepreparedbyPortlandcementandsupplimentarycementitiousmaterials—steelslagpowder(SS)andceramicpolishingpowd
5、er(PP).Theeffectsofwater-binderratioandcontentofSSandPPonthecom—pressivestrength。chemicalcombinedwatercontent,poresolutionpHvalueandmicrostructurewereinvestigated.Theresultsshowthatthemostsignificanteffectofwater-binderratiooncompressivestrengthisSS-cement,secondlyit
6、isPP-cementandthelastiSPortlandcementatthesamehydrationage.ChemicalcombinedwatercontentofSS-cementandPp-cementdecreaseswithdecreasingthewater-binderratio.atthesamecontentofSSandPPandthesamehydrationage.Also,theporesolutionpHvalueandthecompressivestrengthincreasewithd
7、ecreasingthewater-binderration.Microstructureofvariouscementhy~drationsystemsbecomemoredensewithdecreasingthewater-binderratio.TheporesolutionpHvalueandchemicalcombinedwatercontentofSS-cementarehigherthanthoseofPP-cement,butthecompressivestrengthislowerthanthatofPP-c
8、ement.Thepozzolanicactivityandthefillingefficientofmicro-aggregateofPPishigherthanthoseofSS.Keywords:steelslagpowder;ceramicpolishi
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