Multi-ions Effect in High Strength Cement Clinker Sintering

• 作 者: ZongfuGuan;KangLi;XiaoyingLi;XubinZhu;ChangjuYang;
• 机 构: School of Material Science and Engineering, Zhengzhou University, Zhengzhou, China 450001
• 出 处: The 14th International Congress on the Chemistry of Cement (
• 发表日期: 2015年期

　　With the chemical structure parameters such as price, electronegativity and ionic radius of the common used impurity ions, the superficial distortions of the doping alite was calculated, and the multi-ions effect expression was proposed.According to the calculation results of multi-ion effect, the clinker samples were prepared with doping F-, p5+, S6+, Zn2+, Cu2+, Mg2+, Al3+, Fe3+ etc with chemical agents.The possible symmetry of the alites extracted from the clinker was estimated referring to the calculation results and analyzed with the XRD.And the strengths of the clinkers with 5% gypsum were tested.The outcome showed: Multi-ion effect factor could be expressed as A =-(k + 0.0113CaF2 + 0.0564S03 + 0.0371 P205 + 0.0478Zn0 + 0.0529Cu0 + …) , The calculating results of multi-ions effect expression existed some correlation with the diffraction characteristics of polymorphic transformation of the alites, there also existed a certain correlation between the strength of clinker with the polymorph transformation alite in the clinker, which could be used as a reference to dosage proportion of raw meal when doping of some impurity ions using wastes to manufacture high strength clinker.