Hindustan Shipyard Limited Tender

Providing Water Proofing Treatment on RCC Slabs of existing Office Buildings in Yard and Residential Quarters in Colony and Town Bungalows. The scope of work involves the following : (a) Removal of existing damaged membrane / chipping & removing the existing damaged surface of concrete up to main slab & cleaning of existing RCC roof slab and dispose the same outside the HSL premises. (b) Repairing of all surface cracks wider than 3mm with polymer modified mortar prepared with Sikatop 77 acrylic polymer or equivalent of Fosroc make. (c) Providing and laying cement plaster in CM 1:4 (where ever required to cover the undulation of slab surface in small portions) duly admixed with sika platocrete super @0.2% by weight of cement, over a bond coat of sika latex cement slurry to make the surface smooth and even. (d)Application of priming coat compatible bituminous primer Sika Wp shield primer W@ 300kg as per sqm over the cleaned and prepared roof surface complete as per satisfaction of the engineer -in-charge and filling of cracks with cebex 100 by providing pressure grouting where ever is required. (e) Providing and laying STP (Shalimar) or Sika atactic polypropylene polymer (APP) modified five layer prefabricated waterproofing membrane with thermal fusible properties on both side and having minimum thickness of 3.0 mm and unit weight not less than 4.0kg/sqm reinforced with non-woven spun bonded troch and sealing all joints properly, leaving no bare edge or end of APP membrane and finished the surface with trowel of other wise to obtain a uniform surface the minimum size side lap and end lap shall be kept at 75 mm and 100mm respectively after necessary surface preparatory work such as cleaning the surface thoroughly, shaping mouths of out lets including cutting groves (50mm x 50mm) in parapet and inserting edge of membrane and mending good damages by sand cement mortar (1:4) and shall be finished in all respect as per direction of engineer- in-charge. (f) Application of aluminium paint in two coats over the surface to protect from direct exposure of SUN Chipping up the damage and cracked portion of the existing surface, removal of all loose partial and through cleaning (with air blower and water) is carried out all over the surface.

Providing Water Proofing Treatment on slopped Roofs of existing work shops in Yard and Residential Quarters in Colony and Town Bungalows. The scope of work involves the following : (a) Removing the old damaged bituminous layer & through cleaning the surface and dispose the waste materials outside the HSL premises and if required rearrangement / replacement to Mangalore tiles and levelling the surface and filling the gaps with CM (1:4). (Required tiles will be issued free by HSL) or fill the gaps in galvalume sheets with waterprrof sealents (b) Application of cold bituminous adhesive @ 0.7Kg/Sq.M of Sika /Shalimar make for fixing waterproofing membrane (c) Providing and laying STP (Shalimar) or Sika Atactic Polypropylene Polymer (APP) modified layer prefabricated waterproofing membrane having minimum thickness 3.0mm. Finishing the surface with trowel or otherwise to obtain a uniform surface. The minimum side lap and end lap shall be kept at 75mm and 100mm respectively (f) Application of aluminium paint in two coats over the surface to protect from direct exposure of SUN.

Providing plain cement concrete 1:2:4 nominal mix using 10mm / 20 mm graded crushed granite aggregate including mixing, depositing in position, tampering, finishing, curing including all materials & labour etc. as levelling course and screed concrete etc., complete all as directed.