Up-gradation procurement of Heritage Assets of Structural Repairing to Coronation Throne and its pathway, damaged boundary wall, installation of PNB, CNB, Chair, dustbins etc at Norbugang for the financial year 2025-26

Item Description

Demolishing stone rubble masonry manually means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge :

Random rubble masonry with hard stone in superstructure above plinth level and up to floor five level, including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) at window sills, ceiling level and the like.(Cement mortar 1:6 (1 cement : 6 coarse sand)

Demolishing lime concrete manually/ by mechanical means and disposal of material within 50 metres lead as per direction of Engineer- in-charge.

(1 Cement : 3 manufactured sand derived from Recycled Concrete Aggregate (RCA) : 6 graded stone aggregate 20 mm nominal size Recycled Concrete Aggregate (RCA)

Finishing with Deluxe Multi surface paint system for interiors and exteriors using Primer as per manufacturers specifications :13.48.3 Painting Steel work with Deluxe Multi Surface Paint to give an even shade. Two or more coat applied @ 0.90 ltr/10 Sq over an under coat of primer applied @ 0.80 ltr/10 Sqm of approved brand and manufacture

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead up to 50 m and lift up to 1.5 m, as directed by Engineer-in-charge. 2.7.1 Ordinary roc

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 and for all lift.

Brick on edge flooring in required pattern with bricks of class designation 7.5 on a bed of 12 mm cement mortar, including filling joints with Jamuna sand, with common burnt clay non modular bricks. [M2]

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement

Provision for fitting fixing of PNB,CNB,DNB