| 1 | 1 | Providing and placing of new filter media as (i) Sand shall be hard and resistant quartz or quartzite and free of clay, fine particles, fine particles, soft grains and dirt of any description. (ii) Effective size shall be 0.20 to 0.30 mm (iii) Uniformly coefficient not be more than 3.0 (iV) Ignition loss should not exceed 0.70% by weight. (v)Soluble fraction in HCL acid shall not exceed 7.0 % by weight (vi) silica content should not be less than 95 % (vii) Specific gravity shall be in the range between 2.55 to 2.65 (viii) Wearing loss shall not exceed 3.0% and as per specification given in IS : 8419 (part -I) (iX) The sand should not contain more than 2% of calcium and manganese calculated as carbonate. Filter media (fine sand and coarse sand ) should be processed through. Disindicator and dust seperator in automatic plant including screening of sand to desired. Specification and washing and cleaning of sand with water by auqa wah technology at quarry site. The sand shall not contain more than 5% acid soluble matter as determined by solubility test in Appendix B of IS : 8419 (Part-I) (Fine sand 0.2 to 0.3 mm and coarse sand 1.0 to 1.7 mm) | BI01010001010000000000000515BI0100001111 | 86 | cum |
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| 2 | 2 | Labour charges for screening of old gravel (received from filter beds) through the standard different sizes sieves for required sizes of gravel, washing the gravel with HCL acid of required concertration as directed by the Engineer in charge, so as to remove all the mud and other deposits from gravel grains and then clean with water till the gravel is as neat and clean that it impart no colour to clean while washing. It also includes placing this washed gravel in filter beds in layer as instructed by the Engineer in charge. (RGF, SSF) | BI01010001010000000000000515BI0100001112 | 110 | cum |
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| 3 | 3 | fixing of pipes for under drainage system including plugging the pipes with CM 1:4 on one end & fixing the other end in collecting in channel with all material, T& P etc. (Excluding cost of pipes) | BI01010001010000000000000515BI0100001113 | 2 | job |
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| 4 | 4 | Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) : 100 mm diameter Class II\n | BI01010001010000000000000515BI0100001114 | 3 | each |
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| 5 | 5 | Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work 80 mm dia nominal bore\n\n | BI01010001010000000000000515BI0100001115 | 6.5 | Mtr |
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| 6 | 6 | Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq.meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge. With cement mortar 1:4 (1cement: 4 coarse sand) \n | BI01010001010000000000000515BI0100001116 | 60 | sqm |
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| 7 | 7 | Finishing walls with Acrylic Smooth exterior paint of required shade : Old work (Two or more coat applied @ 1.67 ltr/ 10 sqm) on existing cement paint surface \n | BI01010001010000000000000515BI0100001117 | 145 | sqm |
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| 8 | 8 | Distempering with 1st quality acrylic distember (Ready mix) having VOC content less than 50 grams/ litre of approved brand and manufacture to give an even shade : Old work (one or more coats) | BI01010001010000000000000515BI0100001118 | 150 | sqm |
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