ANNUAL RATE CONTRACT FOR CLEANING OF OHSR, ESR, CWR, GLR, GSR,CWT AND UNDER GROUND CWR OF VARIOUS CAPACITIES IN SUB DIV SANGARH UNDER CITY DIV JAISALMER

PHED JAISALMER O&M BSR 2020

Clening of Ground water reservoir (GLR's) of below mentioned capacity including removal of all silt from reservoir, scrapping of wall, disirifection of reservoir after cleaning and disposal of silt up to 1.00 Km lead and painting the date of cleaning on the reserovir

up to 10 Kl

Cleaning of Clear water reservoir (CWR's) of below mentioned capacity including removal of all silt from reservoir, scrapping of walls, disinfection of reservoir after cleaning and disposal of silt up to 1.00 Km lead and painting the date of cleaning on the resorvoir.

up to 10 Kl

Cleaning of Over Head Service Reservoir (OHSR) of below mentioned capacity including removal of all silt from reservoir, scrapping of walls, disifection of reservoir after cleaning and disposal of silt up to 1.00 Km lead and painting the date of cleaning on the reservior.

Replacement of existing wire mesh on ventilators of GLRs, OHSRs, CWRs etc. with 16 mm dia MS vertical bars placed at 10 cms wherever required, having 16-gauge wire mesh with a inner base of expanded jali welded around with vertical bars

Replacement of existing copper float dia 300 mm and iron counter weight for water level indicator

Cleaning of PHED Campus (Includes Removal of garbage, Cleaning of light jungle and maintaining the area and disposal of all garbage outside Approved disposal place of Concern local bodies.

Providing, fabrication and fixing mainhole cover 600X600 size made of angles 50X50X6 mm frame,40X40X5 mm frame of cover, 6 mm thick MS sheet with holdfast and fittings complete as per design and drawing including cutting welding and fabrication with priming coat of red oxide With lock (minimum weight 50 Kg)

P & F Bib Cock (IS:8931 Mark) Superior quality of approved make :

Brass 400 gm. 15 mm nominal bore.

P & F G.I. Pipes (External work) with G.I. fittings (IS:1239 Mark) including trenching & refilling earth etc.

15 mm dia nominal bore.

40 mm dia. nominal bore

50 mm dia. nominal bore

65 mm dia. nominal bore

80 mm dia. nominal bore

4.6 Taking out with care the M.S. iron ladder fixed at OHSR , repairing, welding etc and fixing back at reservoirs including all labour and material.

B.95/9.19: Providing and fixing steel gate grating and grills made of angles, tees, square bars or other flats black pipe with holdfast and fittings complete as per design and drawing including cutting welding and fabrication with priming coat of red oxide

B.99/9.31: Supplying and fixing fixed wire gauge of 14 mesh

B.96/9.22.3: Providing and fixing 1 mm thick M.S. sheet

P & F Bib Cock (IS:8931 Mark) Superior quality of approved Brass 400 gm. 15 mm nominal bore.

P & F G.I. Pipes (External work) with G.I. fittings (IS:1239 :---- 80mm dia nominal bore.

65mm dia nominal bore.

Guniting damaged R.C.C. slab, beams and columns for strengthebning with cement sand mortar 1:2 (1- Cement:2-sand) including preparing the surface, making 'V' shaped joints, cleaning the reinforcement bars with jet of potable water and drying with compressed air, including cost of centering and shuttering and finishing to match the existing surface etc. complete, including provided M.S. welded mesh to gauge 25 mm x 25 mm framing with average thickness of 25 mm.

Chopping loose and cracked concrete to required depth, cleaning the exposed surface of steel and concrete with wire brush and sand blasting, clening with a jet of water / air as necessary and getting it dried with compressed air including all scaffolding: Depth upto 25 mm.

Repair to damaged RCC slabs, beams and columns etc for strengtheing with cement mortar 1 : 3 in following steps i) Choping losse and cracked concrete to required depth, cleaning the exposed surface of steel and concrete with wire brush and sand papering , cleaning of concrete surface with water as necessary and getting dried. ii) Applying Epoxy primer on the exposed steel bars. iii) Applying Epoxy hardener and resin mix (as per manufectured's specification) on concrete and steel bars with brush. iv)Speading dry cement mortar 1 : 2 mix over epoxy treated wet surface and allow it to dry for one day. v) Plastering the surface with cement sand mortar 1 : 3 upto depth of 30mm complete. vi) Cure the plastered surface for 15 days

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