首页期刊信息编委及顾问期刊发行联系方式使用帮助常见问题ENGLISH
位置:首页 >> 正文
碳硫硅钙石形成机制的定量分析
作者:高礼雄1 杜雪刚2 孔丽娟1 
单位:1. 石家庄铁道大学材料科学与工程学院 石家庄 050043 2. 中国建筑材料科学研究总院 国家绿色建材重点实验室 北京 100024 
关键词:水泥基材料 碳硫硅钙石 Rietveld方法 定量分析 
分类号:TU528
出版年,卷(期):页码:2012,40(5):711-714
DOI:
摘要:

  要:设计了两种人工合成碳硫硅钙石的实验方法以研究水泥基材料中碳硫硅钙石的侵蚀机理。用X射线衍射、Raman光谱对水泥基材料不同龄期的反应产物进行定性分析,并采用Rietveld方法进行定量表征。结果表明:碳硫硅钙石在不能生成钙矾石的环境下仍可形成,说明其可以直接反应生成;在有钙矾石生成的环境下,碳硫硅钙石也可生成,表明碳硫硅钙石形成机理存在Woodfordite转变机理。钙钒石的存在提高了碳硫硅钙石的产率。相比较而言,Woodfordite转变机理比直接生成机理更容易发生,且两种机理可以同时并存

how to catch a cheater online go
read why people cheat in relationships signs of infidelity
why do wife cheat on husband why men cheat how to cheat wife
my wife cheated on me now what website husband cheat

Abstract: Two synthesis methods of thaumasite generation were used to investigate the mechanism of thaumasite attack to cement based material. The reaction products were analyzed qualitatively by X-ray diffraction, laser Raman spectroscopy and the Rietveld method, respectively. Thaumasite could be directly generated without any ettringite. However, thaumasite generated with ettringite was due to the Woodfordite transformation mechanism. The presence of ettringite could improve the formation rate of thaumasite. The generation of thaumasite with ettrigite due to the Woodfordite transformation could be easier than the direct generation of thaumasite without ettringite. The generation mechanism of thaumasite with and without ettringite coexisted

women want men infidelity signs how do i know if my wife cheated
redirect go why women cheat on men they love
abortion las vegas abortion clinics in the bronx abortion pictures
基金项目:
中国建筑材料科学研究总院绿色建筑材料国家重点实验室开放基金“水泥基材料中碳硫硅钙石的定量表征”(533001)资助项目
作者简介:
高礼雄(1969—),男,博士,副教授
online click open
my husband cheated on me redirect women who cheat on husband
参考文献:

[1]  CRAMMOND N. The occurrence of thaumasite in modern construction - a review [J]. Cem Concr Compos, 2002, 24(4): 393402.

[2]  邓德华, 肖佳, 元强, . 水泥基材料的碳硫硅钙石型硫酸盐侵蚀(TSA)[J]. 建筑材料学报, 2005, 8(5): 532541.

DENG Dehua, XIAO Jia, YUAN Qiang, et al. J Build Mater (in Chinese), 2005, 8(5): 532541.

[3]  SANTHANAM M, Cohen M D, Olek J. Effects of gypsum formation on the performance of cement mortars during external sulfate attack [J]. Cem Concr Res, 2003, 33(3): 325332.

[4]  胡明玉, 唐明述. 碳硫硅钙石型硫酸盐腐蚀研究综述[J]. 混凝土, 2004(6): 1719.

HU Mingyu, TANG Mingshu. Concrete (in Chinese), 2004(6): 1719.

[5]  FREYBURG E, BERNINGER A M. Field experiences in concrete deterioration by thaumasite formation: possibilities and problems in thaumasite analysis [J]. Cem Concr Compos, 2003, 25(8): 11051110.

[6]  AGUILER J, BLANCO-VARELA M T, ZQUEZ T. Procedure of synthesis of thaumasite [J]. Cem Concr Res, 2001, 31(8): 11631168.

[7]  BARNETT S J, MACPHEE D E, LACHOWSHI E E, et al. XRD, EDX and IR analysis of solid solutions between thaumasite and ettringite [J]. Cem Concr Compos, 2002, 32(5): 719730.

[8]  SADANANDA S, DAVID L E, MATTHEW P N. Identification of thaumasite in concrete by Raman chemical imaging [J]. Cem Concr Compos, 2002, 24(3/4): 347350.

[9]  YANG R, BUENFELD N R. Microstructural identification of thaumasite in concrete by backscattered electron imaging at low vacuum [J]. Cem Concr Compos, 2000, 30(5): 775779.

[10]  李长成, 姚燕, 王玲. 氯离子对碳硫硅钙石形成的影响[J]. 硅酸盐学报, 2011, 39(1): 2529.

LI Changcheng, YAO Yan, WANG Ling. J Chin Ceram Soc, 2011, 39(1): 2529.

women want men infidelity signs how do i know if my wife cheated
online women that cheat with married men married woman looking to cheat
online read here open
printable coupons for cialis drug discount coupons coupon for free cialis
服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com