Waterproof TE PNR

Amount

Waterproofing of slabs, shade projections etc. using Sika Latex ® SBR latex or SBR latex of other approved brands like FOSROC or Dr Fixit in the following steps. 1. Pretreatment of substrate by wire brushing with water jet to remove loose mortar or other friable particles, oil, grease, dirt rust, scale, paint, cement laitance, old coatings and any other contaminants or deleterious materials which reduces bond or contributes to corrosion, 2. Preparing grout of proportion by volume 1 : 4 : 8 (1 Sika Latex® SBR : 4 Water : 8 Cement) 3. Applying first coat by brush in order to obtain a thin layer. 4. Applying the 2nd coat after 1st coat is dry, approximately 4-6 hrs between two coats. 5. Applying a protective plaster coat of 6 mm cement mortar 1 : 3 (1 cement : 3 fine sand) about 2 hours after application of second coat. 6. Giving 3 to 5 days curing by covering with wet rag/hessian cloth and sprinkling water intermittently.

The following precautions shall be taken. During application, the mixture needs to be continuously stirred to prevent the cement particles from settling. Prepared material must be used with in 20- 30 minutes depending upon temperature humidity etc. Ponding with water shall not be done Note: Steps 2 to 4 are for Sika Latex ® SBR latex. Application instructions given by the specific manufacturer shall be strictly followed. Making chequers of approved pattern of size 30 cm x 30 cm. on plastered surface immediately after mortar is finished. (Note the rate for the item shall be inclusive of all above activities and nothing extra shall be paid on any account)

Filling of micro cracks that may have developed on the surface after execution of item 1, with epoxy based crack sealing compound like sikadur crack seal ® or equivalent, to be applied using pressure gun after cleaning pressure-cleaning the crack. The item shall be executed after allowing a waiting period of at least 7 days after execution of item 1.

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground , all complete as per directions of Engineer-In-Charge.

With cement mortar 1:4 (1 cement : 4 fine sand).

12 mm cement plaster of mix

1:4 (1 cement: 4 fine sand)

Vaigues Padamadan