维普中文期刊产品整合服务

A new method to evaluate the hydraulic activity of Al-Si materials

查看全文 作　　者：LI [1,2]HuaJian;SUN [2]HengHu;TIE [3]XuChu;XIAO [3]XueJun 高影响力作者 机构地区：[1]China Academy of Railway Sciences,Beijing 100081,China;[2]Department of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;[3]Department of Resources,China University of Mining&Technology(Beijing),Beijing 100083,China高影响力机构 出　　处：《Science China(Technological Sciences)》索引2008年第51卷第2期,共8页高影响力期刊 基　　金：the National Natural Science Foundation of China (Grant No. 50474002);the Key Project of Ministry of Education of China (Grant No.104231) 摘　　要：Slag,fly ash,gangue and 500℃ calcined gangue are analyzed by using identical coupled plasma optical emission spectroscopy (ICP),X-ray photoelectron spec-troscopy (XPS),infrared spectroscopy (IR) and magnetic angle spinning nuclear magnetic resonance (MAS NMR). Research results show that there is a negative linear relationship between the Si 2p and Al 2p binding energies of Al-Si materials and the compressive strength of aluminosilicate based cementitious materials prepared with these Al-Si materials,i.e. the lower the binding energies,the higher the compressive strength. Indeed,the Si 2p and Al 2p binding energies of Al-Si materials can be used to indicate their hydraulic activity. The binding energies of the four examined materials increase in the order of slag,fly ash,500℃ calcined gangue and untreated gangue. Moreover,the binding energies of Si 2p,Al 2p and O 1s of every Al-Si material have excellent correlation. By using the Al 2p binding energy and 27Al MAS NMR spectra,the coordination number of aluminum in slag is determined to be four,while that in gangue,is six. Based on the aforementioned discoveries,this paper presents a new effective method to evaluate the hydraulic activity of Al-Si materials by using the surface binding energies of silicon and alu-minum of Al-Si materials. 关 键 词：waste management AL-SI MATERIALS ACTIVITY evaluation BINDING energy X-ray PHOTOELECTRON spectroscopy (XPS)
相关文献

参考文献(12)

引证文献(4)

耦合文献(1)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费