SPECIAL REPAIR TO OFFRS MD ACCN BLDG NO P-12 AT GWALIOR ROAD UNDER GE (EAST) AGRA

Taking down of all loose and de-bonded concrete/ screed, loose particles, dirt etc & Debris should be removed from Bldg. Roof substrate must be pressure-washed with water with, a minimum working pressure of 1,400 psi is to be used to and/or remove all dirt, dust, chalking and waste products. Remove algae, mold by using bleach solution or biowash etc complete all as specified & directed.

M&L apply one coat of cipoxy 16D primer in the ratio 1:1 spreading at the rate of 0.200 kg-0.250 kg /sqm in complete dry condition where moisture contain below 7% (should be checked with moisture meter)Allow the primer coat to dry for 6 to 8 hours. Apply 1st coat of Roofseal Classic without dilution spreading at the rate of 0.70/litre/Sq.mt/Coat until all surface is covered. Lay a 45 GSM Fibre glass mesh as a reinforcing material which is incorporated in the coating when the first coat is still in wet condition. Allow the first coat to dry for approximately 4 to 6 hours. Apply the second of chemical with the same application coverage, but in a direction perpendicular to that of the first and second coats. Allow each coat to air cure for a minimum of 4-6 hours after application. Check to see no void surface is left untreated / uncoated.Allow the system to air cure for 7 days minimum etc complete all as specified & directed.

M&L for repair of all visible hairline cracks on concrete roof / screed more than 0.50 mm and not giving hollow sound, should be cut and widen in V shape with mechanical cutter in the size (10mm W x 6mm D). Fill cracks with PU sealant / Hybrid Sealant with suitable gun and smoothed with a putty knife or trowel. Allow sealant to cure a minimum (72 Hrs.) 3 days etc complete all as specified & directed.

M&L for Remove loose and damaged concrete roof screed in pockets with mechanical cutter. Clean the concrete screed with high pressure water jet to remove dirt and loose particles. Brush apply a bond coat of Pidicrete URP mix in the ratio of 1:1 (URP 1: Cement 1) by volume to make it lump free slurry when applied on in the pre wet surface. Laid to fall roof screed in correct slope and gradient. Mix Dr. Fixit Pidicrete URP 10% by weight of cement in average thickness 25 mm concrete in ratio of 1:1.5:3 i.e., one bag of 50kg cements: 1.5 times volume of sand: 3 times volume of aggregates: 25L water. Level the repair mortar and finish with trowel. Moist cure should be done for 7days. Air cure screed for 7days, before application of roof top coat coating system etc complete all as specified & directed.

M&L 25 mm thick PCC 1:2:4 type B-1 (12.5mm graded aggregate) with water proofing compound @ 0.2 ltr per 50 kg bag as per manufacture instructions neat cement slurry with 3.0kg of cement per Sqm complete all as specified and as directed. Note : water proofing compound shall be measured and paid separately.

Demolition of cement concrete(unreinforced) of any description and in any position not otherwise specifically provided complete all as specified and directed.

M&L Cement concrete in shunk portion filling in mass concrete Type E2 1:5:10 (using 40mm graded stone aggregate) Including demolition of cement concret complete all as specified and directed .

M&L for Rendering 10mm thick in CM 1:3 using water proofing compound as per manufacture instruction finished even and smooth without using extra cement and curved adqutely and after drying apply two coats of Brushbond Aquaprotect of Fosroc or equivalent both on floor and walls of sunken poriton and tested complete

Demolition of cement concrete (reinforced) in roofs, floors (other than ground floors), beams, staircases, landing, chajjas and similar suspended work complete all as specified and directed.

Disposal of removed/demolished soil/materials exc 1.50 km but n. exc 5 km and depositing where directed complete all as specified and directed