This paper briefly introduces the application of Brazilian CVRD ore fines in Laigang,analyzes and studies sintering properties of all kinds of ore fines and their influence on sinter quality,holding that Brazilian CVRD ore fines,with better sintering properties,can optimize chemical compositions of sinter and improve output and quality,when used as the leading ore.

Sintering experiments with different portion of imported fine ores,including Brazilian CVRD fines and high-iron Indian fines,were carried out in the laboratory.

The CVRD ore produced by Brazil has the features of high ferrous grade, few harmful impurities and good sintering properties.

The green ball cage charging test and industrial peliet production on mixture of CVRD fine concentrate with the magnetite concentrate of Washan magnetite mine, demonstrate that, with the existing material condition in Magang, it is feasible to produce pellets in shaf t with 15% of CVRD concentrate added in mixed materials .

The Influenle of the Brazil CVRD and Indian Ores on the Quality of Sinters;

Studies on hydration mechanism of slag powder cement;

With the development of cementitious material,slag powder is more used as high-performance admixture in cement and concrete.

The relationship between the slag powder content and the mortar strength of slagcement system (expression in activity index) was studied.