IMPROVED PERFORMANCE OF BLAST FURNACE SLAG CEMENT MADE WITH HIGH ALKALI CLINKER

  • Mus B
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Abstract

A series of laboratory tests are described with ISDEMiR blast furnace slag (BFS) and four different cement plant clinkers. Materials are ground up to 4.500- 4.000 cm2/gr (Blaine, specific surface) for OPC and BFS respectively. Mixture samples prepared with 40, 50, and 60 % BFS contents were tested for compressive strengths both in the Denizli & Iskenderun cement plant and the Turkish Cement Manufacturers' Association Laboratories. It is concluded that: ! In the light of 2, 7, 28 and 80 days compressive strength figures, under normal and sulfated water conditions, clinkers containing around 1.1 % total alkali are best suited for BFS cement production. ! % total alkali content is sufficient to activate BFS activity index grade 80. ! Clinker C increases BSF content up to 60.28% additive ratio in BFS cement production (the approach is done with the aid of 2-day compressive strengths, an exponential approach)

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  • B Mus

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