SPECIAL REPAIR OF CERTAIN TECHNICAL BUILDING (BUILDING NO. P-5, P-8, P-87 AND P-88) AT DRDE GWALIOR UNDER GE I RND DELHI

Amount

Demolition of cement concrete of any description and in any position not otherwise specifically provided for complete all as specified and directed

Disconnecting existing water tanks exc 500 & n.exc 1000 litres, setting aside (or lowering if required) for repairs only and hoisting if required reconnecting and refixing in position complete all as specified and directed

Demolition of brick work built in cement mortar of any description complete all as specified and directed

M&L for brick work with sub class ‘B” brick of old size straight or curved on plan exc 6 mtr mean radius built in CM 1:6 complete all as specified and directed

M&L for 15mm thick rendering in cement mortar 1: 4 on fair faces of brick wall or concrete surfaces, finished even & smooth (without using extra cement) complete all as specified and directed.

M&L for cutting out cracks to V-Section in existing roof or terracing cleaning out, and filling solidly with a hot mixture of bitumen and clean dry sand 1:1 (by weight) complete all as specified and directed

M&L for PCC 1:2:4 type B-0 (using 12.50 mm graded crushed stone aggregate) as in roof padding, bed plates or mass concrete for maintaining roof level complete all as specified and directed

M&L for complete removal of existing roof treatment and applying water proofing treatment to RCC roof slab including parapet comprising with the following course of treatment/specifications from bottom to top:- (a) Applying bituminous primer @ 100 gm per Sqm over and including screed bed in CM 1:4, 10mm thick with levelled water proofing compound @0.20litre per bag of cement or as per manufacturer’s instructions over brushing neat cement slurry @3kg/Sqm of roof including parapet surfaces. (b) One layer of APP based polymeric membrane of approved manufacturer, 3mm thick, weight not less than 3.0 Kgs per Sqm, reinforced with non woven polyester fabric or weight not less than 150 gms per Sqm. Note:- (i) laying of APP polymeric membrane shall be done over a coat of hot blown bitumen 85/25 Grade @ 1.20 Kg/Sqm after priming surfaces using bitumous emulsion (tack coat) @ 0.30 litre/Sqm. (ii) A minimum overlap of 100mm and 75mm should be made in the end and sides of the polymeric membrane respectively and sealed all overlaps and joints as manufacturers instructions. (c) Applying two coats of bituminous aluminium paint on top of APP membrane complete all as specified and directed. (d) WPC shall be measured and paid separately.

Supply only liquid water proofing compound complete all as specified and directed.

M&L for preparation of crumple/expansion joints to the desired size and locations by saw cutting etc, cleaning/removal of all loose particles, laitance, traces of bitumen etc., vacuum cleaning of the joints and making it dust free complete. The excessive depth of the joint to be sealed by inserting compressible polystyrene foam backer rod of a reputed manufacturer which is lightly larger in diameter of the joint width and fit into the groove, taking care the depth to width ratio of the joint and fixing masking tapes on either side of the groove etc. complete. Further applying Shaliprime PS and prime the two side of the substrate using a brush and applying shaliseal PS (PG) mixing the base and hardener paster thoroughly using a slow speed drill machine with a suitable paddle until homogeneous and filling the joints with a suitable means starting from one end taking care at no point air is entrapped. After the completion of the filling, using suitable tool ensuring the seal is finished with proper adhesion on the two side surfaces complete all as specified and directed.

M&L for taking down carefully AC appliances fitted on roof of bldg. and fixing temporary during water proofing treatment and after completion of water proofing work fixed the AC appliances to its original place including necessary arrangement and material required etc complete all as specified and directed.

GUPTA ENGINEERING WORKS

M/S YOGANSH CONSTRUCTION CO.

U S CONSTRUCTION

M/s Mahesh Engineering Works

anand enterprises

M/s Anjali Construction

M/s Pal Construction

Lall Electronics