Reconstruction of Well Shyphon

Amount

Dismantling without damaging the near by structures if any, clearing away and carefully stacking materials useful for reuse for any thickness of wall in Brick or stone masonry in cement mortar walls under 3 m high etc., complete complying with standard specification and as directed by the departmental officers

Dismantling without damaging the near by structures if any, clearing away and carefully stacking materials useful for reuse for any thickness of plain cement concrete complete complying with standard specification and as directed by the depatmental officers.

Earth work excavating and depositing on bank with initial lead of 10m and initial lift of 2m in hard stiff clay, stiff black cotton, hard red earth shales murrams, gravel, stoney earth and earth mixed with small size boulders etc., complete complying with standard specification and as directed by the departmental officers.

Earthwork excavation for foundation in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size of boulders hard gravelly soil inclusive of shoring to full depth strutting and bailing out water wherever necessary and refilling the sides of foundation with excavated soil other than sand in layers of not more than 15 cm thick, well rammed, consolidated and depositing the surplus earth in places as shown by the departmental officers with an initial lead of 10 (Ten) metres and initial lift of 2 (Two) metres and clearing, levelling the site etc., complete complying with standard specification and as directed by the departmental officers.

Collection and Supply of M.Sand gravel mix 1:1 (one sand and one gravel) ratio for basement / filter zone including stacking, mixing and spreading the sand gravel mix in layers of not exceeding in 150 mm thickness over properly prepared surface, watering and consolidating the same with approved type of compaction equipment etc complete complying with the standard specification and as directed by the Engineer in charge of the work.

Providing and placing in position of Plain Cement concrete of M-15 using broken hard granite coarse aggregate of nominal maximum size of 40mm to IS specified grading and using crushed stone sand (m-sand) ( to achieve the specified characteristic strength of 15 N/mm² in 28 days ) and mixing the incredients in approved mixer including dewatering of the placement site by bailing/pumping and diverting wherever necessary placing in layers and watering, curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strength as specified in the approved drawings and specification etc., complete complying with standard specifications and as directed by the Engineer incharge of work. (Without vibration)

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.0 m height for Plane surfaces as detailed below in all floors with all cross bracings using mild steel sheets of size 90 x 60 cm and 10 BG stiffened with welded mild steel angle, of size 25 mm x 25 mm x 3 mm for boarding laid over silver oak joist of size 10cm x 6.5 cm spaced at about 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc., complete complying with standard specification and as directed by the departmental officers (payment for centering shall be given after the concrete has been laid).

Circular Centering

Centering with strutting

providing and placing in position of plain Cement concrete M15 grade design Mix with and the nominal maximum size of coarse aggregate of 20 mm weigh batching the ingredients and mixing in approved mixers/ batching plant (to produce concrete of the specified characteristic strength of 15N/mm2 at 28days) including dewatering the placement site by bailing/ pumping and by diverting wherever necessary laying the concrete in layers and in bays with all leads and lifts compacting and finishing the surface, water curing so as to attain the profile and strength specified in the approved drawing and specification complete complying with standard specification and as directed by the Engineer in charge of the work.

Providing and placing in position of Reinforced Cement Concrete of M20 grade using hard broken granite coarse aggregate with the nominal maximum size of 20 mm to IS specified grading mixing by mixture mechine including dewatering the placement site, laying the concrete in layers and in bays vibrating, compacting and finishing the surface with all leads and lifts watering curing to attain the profile and strength as specified in the drawing for various depth and height below and above ground level etc., complete complying with standard Specification and as directed by the Engineer in charge of the work.

Supplying, fabricating and placing in position of mild steel or ribbed tor steel grills for reinforcement of RCC works including cost of steel and binding wire, labour charges for de-coiling, cutting, bending and tying the grills complete complying with standard Specification and as directed by the Engineer in charge of the work.

Providing and placing in position of Plain Cement Concrete of M20 grade using hard broken granite coarse aggregate with the nominal maximum size of 20 mm weigh batchng the ingredients and mixing to approved mixers (to produce concrete of the specified characteristic strength of 20 N/mm2 at 28 days) including dewatering the placement site by bailing / pumping wherever necessary, laying the concrete in layers and in bays, compacting, watering, curing, finishing the surface with all leads and lifts so as to attain the profile and strength as specified in the approved drawing and specification for various depth and height below and above ground level etc., complete complying with standard specification and as directed by the departmental officers.

Refilling with excavated earth (other than sand) with all leads and lifts for filling the open cut wherever necessary in layers including breaking clods watering and compaction using Power Roller to atleast 95% of Proctor Density at OMC in each layer and sectioning etc., as directed by the Engineer in charge of work.

Providing construction contraction and lift joints in concrete including placing Mastic/Tar pad of 20mm thick (1.04 kg of asphalt and 3.29 m2 mastic pad required for 1Rm) at vertical joints inside of wall in required size as specified in the drawings and specificasion etc., complete complying with standard specification and as directed by the departmental officers. (for wing wall)

GST 18 % in figures