NFN/CIVIL/683/2025/18 DATED 24/02/2026 Repair to Roofs of Residential Quarters and Public Buildings in Township and

Carriage of Materials by Mechanical Transport including loading,unloading and stacking upto 2 KM- Lime, moorum, building rubbish.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering at all height and depth.

i) 1:2:4 (1 Cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size).

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. - Nominal concrete 1:3:6 or richer mix (i/c equivalent design.

Demolishing brick work including stacking of serviceable material and disposal of unservice ablematerial within 200 metres lead in cement.

i) In Cement Mortar.

Brick work with bricks of class designation 75 at all heights and depth in : cement mortar 1:6 (1 cement: 6 fine sand ).

Brick work with old available bricks of class designation 75 at all height and depth in : cement mortar 1:6 (1 cement: 6 fine sand ) by cleaning of mortor from old bricks .(Labour rate only)

12 mm cement plaster of mix : 1:6 (1 cement: 6 fine sand).at all height and depth including dismantling of old plaster whereever required at site.

Painting top of roofs with bitumen of approved quality @ 17kg per 10 sqm impregnated with a coat of coarse sand at 60 cudm per 10 sqm, including cleaning the slab surface with brushes and finally with a piece of cloth lightly soaked in kerosene oil complete : With residual type petroleum bitumen of grade VG -10.

Providing gola 75 X 75 mm in cement concrete 1 : 2 : 4 (1 Cement : 2 Coarse sand : 4 graded stone aggregate 10 mm and down grade) including finishing with cement mortar 1:3 (1 Cement : 3 fine sand) In 75 X 75 mm deep chase.

Flush pointing with cement mortar 1:3 (1 cement, 3 fine sand) for flat brick tiles on top of mud phaska at roof by racking out joints in cement mortor & surface preparation for repointing of roof including dispose of rubbish to dumping yard. Contractor may Note that this item include uplifting depresed portion of roof with removal of mud phaska and re-laying the tiles of depresed not more than 3.00 sq.m by raising up the depresed portion with filling & compaction of good earth etc as per required slope for proper draining of rain water to spout at site, all as per instructins of Engineer-in-charge.Nothing shall be paid extra for Re-setting of depresed portion/local depression by executing relevent activities and make the area water proof.

Uprooting peepal tree/ wild growth on top of roof / wall/ plinth protection by taking out brick tiles and weeding out the roots of plants from roof & brick parapet wall completely by dismantling of brick work and making the area water proof by resetting and raising up the depressed/ damaged tiles including Re-brick work with dismantled bricks by cleaning the same in 1:6 including plasteing and repointing the area attended with cement mortar 1:3 (1-Cement: 3-fine sand) wherever required including filling earth below brick tiles wherever required at site including carriage of rubbish to dumping yard etc complete all as per instructions of the Engineer-in-charge. Contractor may Note that Nothing shall be paid extra for allied activties involved for removal of tree and re-storing of roof and parapet wall in original position.

Supplying and stacking of second class bricks tiles designated 75 (for misc. jobs carried out by labour engaged as stated above), as per instructions of the Engineer-in-charge.

Regrading terracing of mud phaska covered with tiles or brick, in cement mortar by dismantling tiles or bricks, removing mud plaster, preparing the surface of mud phaska to proper slope, relaying mud plaster gobri leaping and tiles or bricks, grouted in cement mortar 1:3 (1 cement : 3 fine sand), including replacing unserviceable tiles or bricks with new ones and disposal of unserviceable material to the dumping ground (the cost of the new tiles or brick excluded), all complete as per direction of Engineer-in-Charge.

Grading roof for water proofing treatment with cement concrete 1:2:4 (1-Cement:2-coarse sand: 4-Graded stone aggregate 20 mm nominal size) on top of roof.