Influence of the granulation conditions and ­performance potential of granulated blastfurnace slag – Part 2: Chemistry and physical properties

Laboratory granulation is highly suitable as a means of demonstrating both the influence of different chemical compositions of granulated blastfurnace slag on its reactivity and the influence of different granulation conditions on the physical properties of granulated blastfurnace slag. The second part of this article deals with the chemistry.

3.2 Physical properties and reactivity
It is theoretically possible that changed grain morphology could be associated with a changed glass structure, and therefore also with changed reactivity of the granulated blastfurnace slag, even if the glass content and chemical composition are constant. However, using the examples of granulated blastfurnace slags HS D, HS D.0 and HS D.9 Fig. 13 shows that the mortar strengths (DIN EN 196-1) of blastfurnace cements (slag/­clinker = 75/25) containing granulated blastfurnace slags with widely differing grain morphology (­Table 2) but virtually constant...

Related articles:

Issue 2013-01

Influence of the granulation conditions and performance potential of granulated blast-furnace slag – Part 1: Granulation conditions

1 Introduction As a rule the liquid blastfurnace slag, which is usually at temperatures of 1440–1540?°C, is cooled rapidly in a steel works by quenching with a large excess of water (about 10:1)....

Issue 2009-04 Materials Science

Characterization of the microstructure and mineral phases of German iron and steel slags

1 Introduction The recycling of iron and steel slag is currently an urgent and important problem for all scientists throughout the world, but particularly for Chinese scientists. In Germany there is...

Issue 2017-7-8 WO2017085565 (A2)

Portland cement free activation of ground granulated blast furnace slag

(22) 16.11.2016 (43) 26.05.2017 (57) A Portland cement-free cementitious binder composition, said composition comprising: ground granulated blast furnace slag and/or pulverized fly ash; an alkali...

Issue 2014-09 CHINA

Loesche hands over world’s largest slag mill

In September 2011, Loesche was commissioned for a vertical mill of the type LM 63.3+3 by the Taigang Group International Trade Co., Ltd. (China) for its customers. This was to be the largest slag...

Issue 2009-11

Slags from iron and steel plants and their use in the building materials industry

The authors of the paper “Characterization of the microstructure and mineral phases of slags from German iron and steel plants” [1] investigated the mineral composition of metallurgical slags and...