Zongfu Guan;Xiangxiang Chen;Xiaoying Li;
<正>With chemical reagent and industrial raw materials for ingredients,the effect of content of P_2O_5 and the species of phosphate on the solid solution of MgO in high magnesium clinker was examined by chemical analysis.Besides,the symmetry of C_3S was examined by XRD.The strength of clinker was tested at the same time.The result shows that:when adding suitable amount of CaF_2 in the clinker,composite mixing CaHPO_4H_2O or Ca(H_2PO_4)2.H_2O are conducive to the clinker in the MgO solid solution.But,adding CaHPO_4.2H_2O is more advantageous than Ca(H_2PO_4) 2.H_2O on the solid solution of MgO in the clinker.When the content off-MgO in clinker is low(<2%),the slightly change of content off-MgO is not the main factor which affects the strength of clinker. To obtain high strength magnesia clinker,single doped P_2O_5 require higher levels.In the case of the same content of F-,composite mixing Ca(H_2PO_4) 2.H_2O or CaHPO_4.2H_2O are conducive to high magnesium clinker late strength.But,the content of phosphorus ion exist the best dosage(0.2%～0.4%),too high or too low,effect is not obvious.Within the range of the experimental dosage,the change of symmetry of C_3S is the main reason for the change of the strength of high magnesium clinker.
To explore the background and basis of the node document
Documents that have the similar content to the node document