Issue 50

M. Papachristoforou et alii, Frattura ed Integrità Strutturale, 50 (2019) 526-536; DOI: 10.3221/IGF-ESIS.50.44 528 mixtures. Superplasticizer addition rate ranged from 2-3.4 % of binder and water to cement ratio 0.47-0.57 and 0.34-0.37 for the mixtures with 500 and 830 kg/m³ binder respectively. 0 25 50 75 100 0.01 0.1 1 Passing (%) Sieve (mm) Limestone filler River Sand Composition Figure 1 : Granulometry of aggregates used. Materials (kg/m³) CL1 FL1 F1 LL1 L1 Cement II52,5N 450 350 350 350 350 Silica fume 50 50 50 50 50 Fly Ash - 100 100 - - Ladle Furnace slag - - - 100 100 Limestone filler 667 667 - 667 - Siliceous sand 667 667 1333 667 1333 Water 289 280 242 280 237 Superplasticizer 17 16 14 16 14 By- products used Binder - Fly Ash Fly Ash LFS LFS Aggregate Limestone filler Limestone filler - Limestone filler - Table 1 : Mixture proportions for 500 kg/m³ binder. Materials (kg/m³) CL2 FL2 F2 LL2 L2 Cement II52,5N 747 582 582 582 582 Silica fume 83 83 83 83 83 Fly Ash - 165 165 - - Ladle Furnace slag - - - 165 165 Limestone filler 550 550 - 550 - Siliceous sand 550 550 1100 550 1100 Water 308 308 281 308 281 Superplasticizer 17 20 17 19 16 By- products used Binder - Fly Ash Fly Ash LFS LFS Aggregate Limestone filler Limestone filler - Limestone filler - Table 2 : Mixture proportions for 830 kg/m³ binder.