Technical Articles -Progress of Blast Furnace Practice in Japan-

Technical Effects of Air Cooled Blast Furnace Slag on Asphalt Mixtures

Air cooled blast furnace slag is a by product made of gradually air cooled molten blast furnace slag and is often stored in stockpiles near the iron mills and usually occupy a wide area around the iron mills. From this perspective the further use of these materials can have its own merits. Air cooled blast furnace slag can be used in asphalt mixtures because of their proper frictional propertie...

Prospects of Iron and Steel Production and Progress of Blast Furnace Route in China

This paper reports the results relating to the following four subjects: i) current status and future prospects of iron and steel production in China; ii) equipped plantsize and operating condition of blast furnaces that sustain Chinese big steel production; iii) trends of demand and supply of iron ore and coal for blast furnaces; and iv) challenges and problems entailed by production increases....

Ground Granulated Blast Furnace Slag

1. Ground Granulated Blast Furnace Slag Ground Granulated Blast Furnace Slag (GGBFS) is a by product of the steel industry. Blast furnace slag is defined as “the non-metallic product consisting essentially of calcium silicates and other bases that is developed in a molten condition simultaneously with iron in a blast furnace.” [1] In the production of iron, blast furnaces are loaded with iron o...

Efficiency, Technical Progress, and Best Practice

Based on a sample of about 600 state enterprises from 1980 to 1994, this paper investigates the productivity performance of SOEs using Data Envelopment Analysis and a Malmquist index. Our empirical results show that the average technical efficiency was low for these firms. Considerable productivity growth was found, but it was accomplished mainly through technical progress rather than through e...

Ann Based Prediction of Blast Furnace Parameters