Public Works Department-PWD has published Tender For Erection Of Repair To Nehru Boys Hostel And Kamla Nehru Girls Hostel Sanskar Ashram, Dilshad Garden Delhi Dg. 2023 24. Sh Cleaning And Repair Of Outside Wall Cladding Waterproofing On Sloped Roof And Misc. Civil Works.. Submission Date for this Tender is 17-08-2023. Building Work Tenders in dilshad Delhi. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Wall lining butch work upto 10m height with Dholpur stone 40 mm thick rough facing on the exposed surface with stone strips of minimum length 300 mm and required width, including embedding every tenth layer and bottom most layer in masonry or concrete after making necessary chases of size 75x75 mm and by providing layer of 75 mm thick strips i/c 12 mm thick bed of cement mortar 1:3 (1 Cement : 3 coarse sand) i/c ruled pointing in cement mortar 1:2 (1 white cement : 2 stone dust) with an admixture of pigment to match the shade of stone complete as per direction of Engineer-in-charge. |
| 2 | Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ litre and viscocity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc, and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 650/ 450N/5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane : (Ten percent of the cost of water proofing work shall be retained as additional security deposit and the amount so withheld would be released after five years from the date of completion of the entire work under the agreement). |
| 3 | 3 mm thick |
| 4 | Demolishing brick tile covering in terracing including stacking of serviceable material and disposal of unserviceable material upto 5.00 km lead. |
| 5 | Dismantling precast concrete or stone slabs in walls, partition wall etc. including stacking serviceable material within 50 metres lead and dosposal of unserviceable material upto 5.00 km lead: |
| 6 | Thickness up to 40 mm |
| 7 | Grading roof for water proofing treatment with |
| 8 | Cement mortar 1:3 (1 cement : 3 coarse sand) |
| 9 | Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, upto 25 metre height, above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia M.S. tube, placed 1.5 metre centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. Tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc., complete as per directions and approval of Engineer-in-charge. Note:- (1) The elevational area of the scaffolding shall be measured for payment purpose.(2) The payment will be made once only for execution of all items for such works. |
| 10 | Cleaning the sand stone surface and removing dirt, dust, bird dropping, grease, oil, algae, fungus, monkey beats, vegetable growth etc., including providing, applying and washing the surface with liquid Ammonia Chemical of 5% solution and other chemical cleaning agent as approved by Archaeological Survey of India/ Engineer-incharge, of approved brand and manufacturer, with the help of required scrubbers and also cleaning with machine operated water jet mixed with desired quantity of fine silica where ever required, without causing any scratching/ damage to the stone surface and finally washing the surface with clean water with the help of pressure jet machine, complete in all respect, including taking all precautions to safeguard ventilators, windows, doors etc. by suitable covering so as to avoid any damage to the building/ structure, all as per direction of Engineer-in-charge (The rate is inclusive of all materials & labours involved except scaffolding). |
| 11 | Ruled / Flush pointing on Red sand stone masonry surface with lime, surkhi and marble dust mortar in the ratio of 1:1.5:1/2 {One lime: 1.5 surkhi (50% red and 50% light yellow surkhi ) : 1/2 marble dust}. (The rate is inclusive of all materials & labours involved except scaffolding). |
| 12 | Applying breathable, non-reactive, antifungal, and water repellant Silane/ Siloxane chemical as approved by Archaeological Survey of India/ Engineer-in-charge, of approved brand and manufacture, diluted with solvent mineral Turpentine oil in the ratio of 1:12 (One part of approved chemical :12 Part of Turpentine oil), on the existing sand stone masonry surface with two or more coats to give uniform application of chemical on the surface, all complete as per direction of Engineer-In-charge (The rate is inclusive of all materials & labours involved except scaffolding). |
| 13 | Providing & laying broken glazed tiles, weight not less than 9kg/sqm on top of hot bitumen @ 1.70 kg/sqm (1.40 kg of 85/25 grade bitumen and 0.30 kg/sqm of 80/100 grade bitumen) and joints filled with cement mortar 1:2 (1 Cement: 2 Marble dust) mixed with water proofing compound etc. all complete as per direction of Engineer-in-charge. |
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