Stabilization of Red Sand Stone of Block No. 1 (back and right side) and all sides of Block No. 2 and 3 (except front entry portion) at Regional Office Complex Narwal

Providing and fixing of fastner (Hilti-Make-HRD CR2 10x140 stainless steel A2 grade countersunk anchor with polymide sleeve for fixing stone up to 40 mm th to wall minimum embedment depth in base material (Brick / Conctete) should be 70 mm including the cost of shuttering and scaffolding required and filling the gaps of the drilled holes, if any with filler as specified by the Engineer-in-charge the cost shall also include the re-fixing of the stone with cement mortar 1:2 in case they come out during the process of mechanical drilling.

Stone work (machine cut edges) for wall lining etc. (veneer work) upto 10 metre height, backing filled with a grout of average 12 mm thick cement mortar 1:3 (1 cement : 3 coarse sand) including pointing in white cement mortar 1:2 (1 white cement : 2 stone dust) with an admixture of pigment matching the stone shade : (To be secured to the backing and the sides by means of cramps and pins which shall be paid for separately) :Red sand stone - exposed face fine dressed with rough backing. (Red Stone 20 to 25 mm Thick)