Influence of CG With High Content of Metallic Particles as a Cement Admixture on Cement Strength

作     者：万惠文 

作者机构：Wuhan University of Technology 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2003年第18卷第2期

页      面：65-67页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：metallic particles industrial waste copper gangue cement admixture distribution of element 

摘      要：Copper gangue (CG), containing a large amount of water with grain sizes of 0.037 to 0.10mm,is an inactive industrial waste generated from copper refineries. When it is dried and used as a cement admixture, the influence of the presence of finely dispersed metallic particles in CG on the microstructure and compressive strength of cement paste has been *** results show that the higher the replacement of CG is,the lower the compressive strength of cement mortar ***,the long-term strength of the specimens with 10% CG,especially after being cured for 3 months,approached to that of the plain *** mechanism was studied by an electron probe X-ray microanalyzer (EPXMA).The results indicate that a small quantity of Fe(OH) 3·nH 2O slowly formed from Fe 2O 3 in the presence of Ca(OH) 2, free CaO and MgO of the clinker also slowly hydrated and formed Ca(OH) 2 and Mg(OH) 2 respectively,so the hardened cement paste became more compact.