摘要:
|
以含钡硫铝酸盐水泥的主要矿物C2.75B1.25A3(?)(1.75CaO·1.25BaO·3Al2O3·CaSO4)为基础,用分析纯化学试剂Fe2O3中的Fe离子对C2.75B1.25A3(?)中的Al离子进行取代,合成了一种新的水泥矿物——硫铁铝酸钡钙系列矿物。通过差热-热重分析研究其最佳烧成。利用X射线衍射仪和扫描电镜对熟料矿物组成及结构进行分析。结果表明:硫铁铝酸钡钙矿物的晶粒尺寸在2μm左右。Fe的摩尔组成可在0-1.25之间,最佳取代值为0.25,此时水泥的1,3d强度均提高。28d强度达到90.0MPa。
|
Based on C2.75 B1.25A3 (?)(1. 75CaO·1.25BaO·3Al2O3·CaSO4 ) , which is the main mineral in Ba-bearing sulfoalumi-nate cement, the Ba-hearing calcium sulfo-ferritealuminate series of new cement minerals were synthesized by a different equivalent of Fe3+ replacing the Al3+ in C2.75 B1.25 A3 (?). By means of differential thermal analysis/thermal gravimetric, the optimum burning temperature was investigated. The composition and structure of the clinker minerals were studied by means of X-ray diffraction analysis and scanning electron microscopy. The results show that the size of the new mineral crystal formed after ferric ions replacement is about 2μm in diameter and the molar value of Fe3+ in composition ranges from 0 to 1. 25. The optimum value of replacement is 0. 25. At the optimum composition, the strength increases obviously after 1 to 3 days. The strength after 28 days can reach 90. 0 MPa.
|
基金项目:
|
“973”计划(2001CB610701);;
“863”计划(2003AA332050);;
国家自然科学基金(50272024);;
山东省自然科学基金(Q2002F03)资助项目。
|
作者简介:
|
how to catch a cheater link go
|
参考文献:
|
[1] 常钧,芦令超,刘福田,等.含钡硫铝酸钙水泥矿物的研究 [J].硅酸盐学报,1999,27(6):644-650. CHANG Jun, LU Lingchao, LIU Futian, et al. J Chin Ceram Soc(in Chinese), 1999, 27(6): 644-650.
[2]常钧,刘福田,芦令超,等.利用含钡废渣烧制硫铝酸盐水 泥的研究[J].硅酸盐通报,1999,18(3):43-47. CHANG Jun, LIU Futian, LU Lingchao, et al. Bull Chin Ce-ram Soc(in Chinese), 1999, 18(3): 43-47.
[3] CHENG Xin, CHANG Jun, LU Lingchao, et al. Study of Ba-bearing calcium sulphoaluminate minerals and cement[J] . Cem Concr Res, 2000, 30(1): 77-81.
[4]刘宗怀,张积强.宝鸡地区硫酸渣资源及综合利用[J].宝鸡 文理学院学报(自然科学版),1997,17(4):57-59. LIU Zonghuai, ZHANG Jiqiang. J Baoji Univ Arts Sci (Natural Sci)(in Chinese), 1997 , 17(4): 57-59.
[5]彭志坚,刘 涛,张 敏.硫酸渣的开发利用[J].矿产综合利 用,2004(2):45-48. PENG Zhijian, LIU Tao, ZHANG Min. Multipurpose Utilization Miner Resour(in Chinese), 2004(2): 45-48.
[6]刘全军,周兴龙,李华伟,等.硫酸渣综合利用的研究现状与 进展[J].云南冶金,2003,32(2):27-29. LIU Quanjun, ZHOU Xinglong, LI Huawei, et al. Yunna Metall( in Chinese), 2003, 32(2): 27-29.
|
服务与反馈:
|
【文章下载】【加入收藏】
|
|
|