Tender for Supply of Castable Refractory for Unit-4 Bottom ash hoppers Overhaul works in Ash handling plant of CAM Division/Stage-II/BTPS

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Supply Of Castable Refractory For Unit-4 Bottom Ash Hoppers Overhaul Works In Ash Handling Plant Of CAM Division/Stage-II/BTPS , FIRE CRETE,SUPER FIRECRETE SUPER,:MAX GRAIN SIZE:5MM SERVICE TEMPARATURE1450C,AL2O3:68-72,CAO:5.2-6.0,FE2O3:4.8-5.5 FIRECRETE SUPER TYPE : 70% ALUMINA CASTABLE (HIGH STRENGTH) NATURE OF BOND- HYDRAULIC, INSTALLATION- VIBRATION CASTING GENERAL PROPERTIES: -MAX. SERVICE TEMP :1450 Degree C, MAX. GRAIN SIZE : 5 Mm, WATER REQUIRED FOR CASTING: 10-11% CHEMICAL ANALYSIS,% TEST PROCEDURE: Al2o3 68-72(Range) 70.2(Typical Value) BIS 12107 Part3 Cao 5.2-6.0 8.35 ASTM C 573 Fe2o3 3.7-4.5 4.0 BIS 12107 Part6 PHYSICAL PROPERTIES: TEST PROCEDURE 1)Dry Density, G/Cc After Drying At 110 Degree C/24 Hrs. 2.50-2.65(Range) 2.55(Typical Value) BIS 10570/2017 2).CCS, Kg/Cm2 After Drying At 110 Degree C/24 Hrs.: 350-450(Range) 380(Typical Value) BIS 10570 After Heating At 1100 Degree C/3Hrs: 180-280(Range)250(Typical Value) BIS10570 After Heating At 1350 Degree C/3Hrs.: 350-470(Range) 430(Typical Value) BIS 10570 3).% Retained On Maximum Size: 0-5(Range) 0.8(Typical Value) BIS 1528 Part14 THERMAL PROPERTIES: ------------------RANGE TYPICAL VALUE TEST PROCEDURE 1)Refractoriness, Orton/Degree C: 31/1683(Typical Value)BIS 1528 Part1 2).PLC, % After Heating At 1100 Degree C/3Hrs:(-0.30)To(+0.30) -0.12(Typical Value) BIS 10570 3)PLC After Heating At 1400 Degree C/3Hrs. (-1.60)To(+1.70) -0.70(Typical Value) BIS 10570 Packing: 25Kg Bags, Storage Life Must Be 9 Months