Page - 937 - in Book of Full Papers - Symposium Hydro Engineering

Table 5. Chemical characteristic of fillers % Coal Coke Iron ore powder Iron ore Concentrate 47.93 68.78 - - CFixed 32.65 9.26 - - Volatile substances 0.39 1.90 - - Moisture 19.04 20.06 - - Ash 80.19 80.39 4.24 0.0 L.O.I 0.91 0.85 0.47 01 K2O 10.21 7.69 36.10 5.69 SiO2 1.68 4.80 35.5 90.27 Fe2O3 0.20 0.30 0.27 - Cl 4.78 3.77 5.02 0.69 Al2O3 0.17 0.1 0.38 0.13 TiO2 0.36 0.51 0.67 0.02 SO3 0.30 0.29 11.3 1.46 MgO 1> 1> 1> 1> La&Lu 0.92 0.79 4.9 1.10 CaO 0.02 0.02 0.17 0.008 P2O5 0.26 0.49 0.82 0.36 Na2O Waste Coal is one of the products of Zarand Coal Factory that obtained during the process of coal processing for the production of coke and consumption in iron melting furnaces. 3. IDENTIFICATION AND FORMULATION OF THE RCC MIXTURES 3.1. DETERMINE THE OPTIMUM WATER-CEMENT RATIO A modify Vebe apparatus, which described in CRD-C 53 [10], used for determining the consistency of RCC. Since RCC mixture with Vebe time between 15 and 20 s has a sufficient workability [11]. The results showed on table 6. 937