corrigendum - supply of op wks store -2 natural sand conforming to is 383-1970 ( specifications for coarse and fine aggregates ) . free from adherent coating, hard, durable, clean and shall not contain clay and impurities such as iron pyrites, alkalies, salt, coal, mica, shale or similar laminates or other materials exceeding the specified limits in is code aggregates for concrete. all other details as per part-ii of rfp. delivery location old air field. 3 natural sand conforming to is 383-1970 ( specifications for coarse and fine aggregates ) . free from adherent coating, hard, durable, clean and shall not contain clay and impurities such as iron pyrites, alkalies, salt, coal, mica, shale or similar laminates or other materials exceeding the specified limits in is code aggregates for concrete. all other details as per part-ii of rfp. delivery location anantnag high grnd. 4 aggregate 20 mm. stone aggregate to be crushed rock or gravel 20mm graded conforming to is 383-1970 ( second revision ) and shall consist of angular fragments and shall be clean, hard, tough, durable and of uniform quality through out. all other details as per part-ii of rfp. delivery location old air field. 5 aggregate 20 mm. stone aggregate to be crushed rock or gravel 20mm graded conforming to is 383-1970 ( second revision ) and shall consist of angular fragments and shall be clean, hard, tough, durable and of uniform quality through out. all other details as per part-ii of rfp. delivery location anantnag high grnd. 6 aggregate 40mm. stone aggregate to be crushed rock or gravel 40 mm graded conforming to is 383 – 1970 ( second revision ) and shall consist of angular fragments and shall be clean, hard, tough, durable and of uniform quality through out. all other details as per part-ii of rfp. delivery location old air field. 7 aggregate 63mm. stone aggregate to be crushed rock or gravel 40 mm graded conforming to is 383 – 1970 ( second revision ) and shall consist of angular fragments and shall be clean, hard, tough, durable and of uniform quality through out. all other details as per part-ii of rfp. delivery location old air field. 8 bricks common burnt clay building bricks sub class ‘b’ modular size designation 75kgf / cm2 , best locally available with sharp corners, free from organic materials, hard and well burnt with uniform size, free from flow & cracks conforming to is-1077-1986. all other details as per part-ii of rfp. delivery location old air field. 9 prefabricated foundation reinforcement type f-2 made of 12mm x 10mm for steel as main bars and 8mm dia deformed bars as in stirrups as per drg including cutting bending & binding with mild steel binding wire annealed not less than 0.90mm dia complete. all other details as per part-ii of rfp. delivery location old air field. 10 form work – type-2 :- timber form work material for columns of size 0.3 x 0.3x0.9mm and columns footing of size 0.9 x 0.9 x 0.3m ( type f-2 ) made out of 30mm thick hard wood planks / boarding’s ( wrought in one side ) incl making 12mm dia holes. all other details as per part-ii of rfp. delivery location old air field. 11 ms clamp made of ms flat 40x40mm, 200mm long bent in ‘l’ shape with two holes of 12mm dia on each end .04 x nuts & bolt of size 10x50mm with washer. all other details as per part-ii of rfp. delivery location old air field. 12 glass dividing strips 40x4mm. all other details as per part-ii of rfp. delivery location old air field. 13 16-18 mm thick polished granite stone. all other details as per part-ii of rfp. delivery location old air field. 14 pre cast cement concrete solid bocks 400 mm x 200 mm x 200mm type 1:3:6 ( using 16 mm graded aggregate as per is 383 ) . blocks shall be sound, free from cracks, broken edges, honey combing and other defects that would interfere with the proper placing of blocks or impair the strength or performance of construction.. delivery location gulmarg.