NIT NO. 03/4

Replacement of pipelines through Static Pipe Bursting process including making of bursting tool entry pits, all related civil work for site preparation, like excavation, shoring/strutting, maintaining the pits, traffic management etc. Flow stoppage by the appropriate stanking methods, bypass pumping, installing the replacement pipe, restoring the manholes after replacement pipe installation etc. completion and service reconnection as per the instruction of the Engr- In-Charge-as per IndSTT 301:2018 Code of Practice for Pipe Busting Technique Suiting Indian Condition. For 450-500 mm dia

Constructing brick masonry circular manhole 5’0”or 1.52m dia. At bottom and 1’10”or 0.56m dia. at top depth up to IL 7’6”or 2.28m built in brick work with extruded burnt sewer bricks conforming to IS-4885-1988 in curved in cement mortar 1:4 (I cement : 4 coarse sand) excluding excavation and soling but including 12” or 0.30m thick foundation cement concrete 1:2:4 (I cement : 2 coarse sand ;4 graded stone aggregate 20mm nominal size) including centering and shuttering and fixing SFRC manhole cover and frame (Heavy Duty) 560mm internal dia. Fixed in cement concrete 1:2:4 (I cement : 2 coarse sand ;4 graded stone aggregate 20mm nominal size) and 12mmthick cement plaster both inside and outside with cement mortar 1:4 (I cement : 4 coarse sand ) and inside plaster to be finished with a floating coat of neat cement. Making necessary channels in cement concrete 1:2:4 ((I cement : 2 coarse sand ;4 graded stone aggregate 20mm nominal size) and all complete as per departmental drawing and as directed by Engineer –in-Charge. Note : 1. Cement required :13.71 Qtl./Each 2. Cost of manhole frame and cover shall be paid separately. 3. Cost of providing and fixing plastic encapsulated foot rest shall be paid separately.

Extra per meter depth of 5’0” or 1.52 meter circular manhole built in brick work with extruded burnt sewer bricks conforming to IS-4885-1988 curved in cement mortar 1:4 ( 1 cement : 4 coarse sand) 12mm thick cement plaster both inside and outside with cement mortar 1:4 ( 1 cement : 4 coarse sand) and inside plaster to be finished with a floating coat of neat cement and all complete as per departmental drawings and as directed by Engineer-in-Charge ( Cost of providing and fixing of plastic encapsulated footrest shall be paid separately) Beyond 7’6” or 2.28m and up to IL 13’8” or 4.16m (Cement required 3.50 Qtl/meter depth) Beyond 2.28m and upto 4.16m

NITIN ENTERPRISES AND BUILDERS