tender for sub: procurement of caldeyrs make plastic refractory for boiler for unit no. 1 & 2 at 2x600mw at sstpp, mppgcl, dongalia (as per tender schedule) , m/s calderys india refractories ltd. make plastic refratory (90.0% alumina) with liquid binder :- [ service temperature - 1650 ⁰c max., refractoriness- 1785 ⁰c, bulk density (sample dried at 110 ⁰c for 24 hrs.), cold crushing strength [at 110 ⁰c/24 hrs. - 650.0 kg/cm2, at 1300 ⁰c/5 hrs.-875.0 kg/cm2], permanent linear change [ at 1300 ⁰c/5 hrs.-0.60 % max.], chemical analysis [al2o3 (nominal)- 90.0%, fe2o3(max)- 0.3%], abrasion loss pre-fired [ at 110 ⁰c/24 hrs.- 5.0 cc, at 1300 ⁰c/5 hrs.- 3.5 cc], binder requirement - 9.5 to 10.0% of wt, thermal conductivity [ at 1000 ⁰c - 2.0 to 2.2 kcal/m/hr/⁰c], method of application- ramming/hand