摘要
研究了复掺氟、磷离子和金属离子(水泥)熟料的抗折强度、抗压强度和岩相结构,分析了熟料主要矿物阿利特在XRD图谱指纹区的衍射特征.结果表明:当氟、磷离子掺量(以CaF2和P2O5计,质量分数)分别保持为0.7%,0.5%时,氟、磷离子和低掺量金属离子的复掺可以提高熟料的28d抗压强度,其中以氟、磷离子和低掺量锌离子的复掺效果最佳.当氟、磷离子掺量分别保持为0.7%,0.5%时,铜离子、锌离子、铅离子和钛离子的最佳掺量(以CuO,ZnO,PbO和TiO2计,质量分数)分别为0.1%,0.5%,0.5%,0.1%.氟、磷离子和金属离子在低掺量水平的复合掺杂,使熟料岩相结构缺陷增多,熟料主要矿物阿利特在指纹区的XRD图谱呈现高对称性衍射特征,这正是实现熟料高强度的重要原因.
The flexural strength,compressive strength and petrographic structure of（cement）clinkers added with fluoride,phosphate ions and metallic ion were tested,and the X-ray diffraction characteristics of alites extracted from clinkers in dactylogram region were investigated.The results show that when the use levels（by mass）of fluoride,phosphate ions（based on CaF2 and P2O5）are kept at 0.7%and 0.5%,the28 dcompressive strength of clinker could be enhanced by adding fluoride,phosphate ions and a little bit of metallic ion in clinker,addition of fluoride,phosphate ions and a little bit of zinc ion in clinker appears to have the best effect.The optimal use levels（by mass）of cuprum ion,zinc ion,plumbum ion and titanium ion（based on CuO,ZnO,PbO and TiO2）are 0.1%,0.5%,0.5%,0.1%respectively when the use levels of fluoride,phosphate ions are kept at 0.7% and 0.5%.At the low use level of fluoride,phosphate ions and metallic ion,the petrographic structures of clinkers present more defect,the X-ray diffraction characteristics of alites extracted from clinkers in dactylogram region show the characteristics of higher symmetry.It is the important reason why the clinker presents higher strength.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2015年第3期357-362,共6页
Journal of Building Materials
基金
国家自然科学基金资助项目(51102078)
绿色建筑材料国家重点实验室开放基金资助项目(YA-475)
关键词
水泥熟料
多离子复合掺杂
抗压强度
岩相结构
X射线衍射
cement clinker
combined addition of multi-ions
compressive strength
petrographic structure
X-ray diffraction
