Providing Water Proofing and Replacing of Head Room Roofing Colouring and Maintenace Work at. Lotakaranja Library in Ward No.22

Dismantling brick masonry in lime or cement mortar and stacking the materials as directed with all leads lifts etc complete As directed by Engineer in charge. SSR OF 2022-23 ITEM NO. 46.09 & PAGE NO.296 BASIC RATE

Removing G.I. or A.C. sheet roofing including purlins, principal rafters etc. including sorting serviceable and unserviceable materials, stacking the same as and where directed in the compound including scaffolding etc. complete. As directed by Engineer in charge. SSR OF 2022-23 ITEM NO. 38.26 & PAGE NO.235 BASIC RATE

Providing second class Burnt Brick masonry with conventional/ I.S. type bricks in cement mortar 1:6 in superstructure including striking joints, raking out joints, watering and scaffolding etc Complete Bd.G.5 Page No. 315 SSR OF 2022-23 ITEM NO. 27.05 & PAGE NO.197 RATE ANALYSIS

Providing structural steel work of rectangular hollow steel section for steel trusses, other similar trussed items like purlin and members with all bracing, gusset plates etc. as per detailed designs and drawings or as directed including cutting, fabricating, hoisting, erecting, fixing in position making riveted/bolted/ welded connections and one coat of anticorrosive paint and over it two coats of oil painting of approved quality and shade complete. As directed by Engineer in Charge. SSR OF 2022-23 ITEM NO. 23.11 & PAGE NO.174 BASIC RATE

Providing and fixing colour coated Zincalume ( R) AZ150 (min 150 gms/sq.mt. total on each side) profiled sheets for roofing. The feed material is manufactured out of nominal 0.45 mm Base Metal Thickness (BMT) (0.5 mm TCT), Hi-strength steel with min. 550 MPa yield strength, metallic hot dip coated with Aluminium-Zinc alloy (55% aluminium 43.4% zinc 1.6% silicon) with COLORBOND (R) steel quality super durable polyester paint coat (with inorganic pigment). The paint shall have a total coating thickness of nominal 35 um, comprising of nominal 25 um exterior coat on top surface and nominal 10 um reverse coat on back surface. Profile sheet shall have nom. 950-1050 mm effective cover width and nominal 25-30 mm deep ribs with subtle square fluting in the five pan at nominal 180-250 mm center-to-center. The end rib shall be designed for anti-capillary groove. and return leg. The feed material should have coil manufacturers product details marked a regular interval. Including fasteners with min. fastened with min. 25 um Zinc-Tin alloy coated, Hex head, self-drilling screw etc. complete. (weight of profile 4.52 kg/sqm) As directed by Engineer in charge. SSR OF 2022-23 ITEM NO. 38.34 & PAGE NO.236 BASIC RATE

Providing and laying Cast in situ/Ready Mix cement concrete M-15 of trap/granite/quartzite/gneiss metal for coping to plinth or parapet, moulded or chamfered as per drawing or as directed including steel centering, plywood/ steel formwork compacting, roughening them if special finish is to be provided, finishing uneven and honeycombed surface and curing etc. complete. The Cement Mortar 1:3 plaster is considered for rendering uneven and honeycombed surface only. Newly laid concrete shall be covered by gunny bag, plastic, tarpaulin etc. (Wooden centering will not be allowed.) With fine aggregate (Crushed sand VSI Grade) Bd.E. 3/Page No. 288/I.S. 456 (2000) SSR OF 2022-23 ITEM NO. 24.16 & PAGE NO.177 RATE ANALYSIS

Providing sand faced plaster externally in cement mortar using approved screened sand, in all positions including base coat of 15 mm thick in cement mortar 1:4 using waterproofing compound at 1 kg per cement bag curing the same for not less than 2 days and keeping the surface of the base coat rough to receive the sand faced treatment 6 to 8 mm thick in cement mortar 1:4 finishing the surface by taking out grains and curing for fourteen days scaffolding etc.complete. Bd.L.7 Page No. 369 SSR OF 2022-23 ITEM NO. 32.11 & PAGE NO.209 RATE ANALYSIS

Providing leak proof treatment by Injection grouting method to old floor without removing tiles of W.C., bath, with cement sand proportion of 1:1.5 and water proofing compound at 2 kg/bag of cement mixed in 35 liters of water including drilling holes in required position grouting with above mixed solution and ceiling etc. As directed by Engineer in charge. SSR OF 2022-23 ITEM NO. 31.03 & PAGE NO.205 RATE ANALYSIS

Providing and laying jointless Polydee-LM, a highly flexible elastometric coating for RCC/cementitious surface for terrace waterproofing on B.B. Coba /R.C.C, after application of TP-42 Primer on perfectly clean surface (free from loose dust and foreign matter) application of 1st coat of Polydee-LM @ 700 gms/sqm and applying 2nd coat of Polydee-LM@ 700 gms/sqm and finishing the same with sprinkling the AG-10 granules on the wet coating. (After finishing covering the treatment with 25mm cement plaster for protection with fibrillated 6mm Plyplast fibre @ 125 gms/sqm to be paid in separate item.) covering 7 years guarantee on Court Fee Stamp Paper of Rs. 100/- etc. complete. As directed by Engineer in charge SSR OF 2022-23 ITEM NO. 31.10 & PAGE NO.206 RATE ANALYSIS

Providing and laying Hyperplas Aluminium or equivalent polymeric multiple monolithic five layer water proofing flexible, pliable and high tensile strength membrane (3 kg/sqm) which is comprise of top with "V" shape embossed 40 micron Aluminium foil to bear thermal expansion and avoiding delamination & consist of centre core of 90 micron thick High Molecular High density Polyethylene film (HMHDPE) which is protected on both the side with polymeric mix. Applying the membrane by thermofusing to roof & parapet after applying thin film of hot blown bitumen 85/25 or 90/15 grade @ 1.2 kg/sqm maximum as per surface condition or Hyperplas primer @ 250 gms/sqm as per site condition on the surface to be treated with 10 cm overlapping including finishing etc. complete and covering guarantee of 7 years on stamp paper of Rs. 100/-and as directed by Engineer-in-charge. (Prior permission of S.E.in writing is necessary before Inclusion of this item in estimate). As directed by Engineer Incharge SSR OF 2022-23 ITEM NO. 51.113 & PAGE NO.382 BASIC RATE