CA NO CWEAFJ-34/2026-27 PROVISION OF MODULAR UG BLDG AT NATHATOP UNDER GE (AF) UDHAMPUR

S&F of Precast reinforced cement concrete (RCC) under ground bunker (water proof) of internal dimension 4.3x 2.4x2.1 mtr constructed using M-50 grade of concrete (wet cast). The structure shall be capable of withstanding an earth filling load of concrete up to 0.60 cm above the top slab. The following work shall be included:- (a) Complete precast RCC construction. (b) Necessary surface finishing including painting and water proofing treatment on the joints as per the manufacturer recommendations. (c) 1 x MS door of size 0.90 x 2.0 m with frame. (d) Provision for 2 x mechanical vents. (e) Provision of all required sleeves, chasses and cutout in walls. Floor and slabs for electrical services. (f) MS staircase for entrance. (g) Adequate arrangements for electrical fittings and installations. (h) Electrical conduits shall be integrated within the precast structure modules at the time of casting, in accordance with the locations, sizes and specifications indicated in the approved construction drawings. These conduits must be coordinated with other services and structural elements to ensure seamless installation and avoid conflicts during assemble on site. (j) The Precast reinforced under ground bunker drawings to be need and vetted by any IIT/NIT/Govt Engg College. Note : All above work to be completed as specified and directed by the Engr-in-Charge.

Surface excavation n.exc 30cm deep and averaging 15cm deep and getting out in any type of soil complete all as specified and directed by Engineer-in-Charge

M & L hardcore using broken stone boulders not exceeding 63mm deposited spread and levelled in layers not exceeding 15 cm thick watered and rammed to a true surfaces complete all as specified and directed by Engineer-in-Charge

M&L for cement concrete 1:2:4 type B-2 (using 40 mm graded crushed stone aggregate)as in flooring including finishing even and smooth without using extra cement complete all as specified and directed by Engineer-in-Charge

M&L for sand filling under floor or in foundation or below interlocking tile of 50 mm thick layer including watering and consolidation etc complete all as specified and directed by Engineer-in-Charge

S&F for 60 mm thick machine pressed precast concrete interlocking paver block With grey cement and No pigment, shape and size confirming to IS 15658-2006 M-35 Grade over completed all as specified and directed by Engineer-in-Charge

Providing, cement concrete 1:2:4 type B-1 (using 20 mm graded crushed stone aggregate) in lintels upto 1.5m clear span, cills, steps seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, hold fasts, kerbs, water troughs and the like including weathering, slightly rounded or chamfered angles and throating complete all as specified and directed by Engineer-in-Charge

Excavating in post holes (or similar holes) in any type of soil each not exceeding 0.5cum, getting out, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25cm, watering and removing surplus soil to a distance not exceeding 50m and making good surface complete all as specified and directed by Engineer-in-Charge.

M&L cement concrete in foundation filling and mass concrete type D2 1:4:8 (using 40mm graded crushed stone aggregate) in post holes complete all as specified and as directed by the Engir- in- Charge.