| Clinker Activation of High Manganese High
Alumina Glassy Slags |
C. A. TANEJA, MANJEET SINGH AND S. P. TEHRI
Pages : 126-131
DOI : 10.1080/0371750X.1977.10840651 |
| Abstract |
| The slag from the blast furnaces of Rourkela
Steel plant which employs LD process for steel
making and makes addition of pyrolusite to the
furnace burden is different from other Indian
slags in having comparatively high manganese
oxide content. Earlier investigations1 showed
that a glassy slag containing MnO as high as
2.3 per cent was suitable for clinker activation
under optimum conditions. Based on these investigations,
a safe limit of 2.0 per cent of MnO
in the slag was introduced in the revised IS:
455-1967 specification for Portland Blast Furnace
Slag (PBFS) cement. However, with the
change in the blast furnace technology in the
recent past, MnO content in Rourkela slag has
gone up to more than six per cent. In view of this,
laboratory investigations were considered necessary
to study the activation of these slags by clinker
and their suitability for cement manufacture. |
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