Water Proofing Works over Roof Slab of CDIT Buildings

Amount

Civil work

od254100/2023_2024 Screed concrete on the top of Terrace using cement concrete 1:3:6 using 12mm (normal size) broken stone for uniform gradient <br> towards the down water outlets and ducts added with water proofing admixture IWP liquid 200ml per bag of cement after cleaning and applying a coat of cement grout with SBR latex in propotion of 2.5kg /bag of cement for the grouting area of 50m2/bag and placing the concrete according to the line of gradient as per the direction of Engineer in Charge

13.9.2 Cement plaster 1:3 ( 1 cement : 3 coarse sand) finished with a floating coat of neat cement.20 mm cement plaster

15.7.4 Demolishing brick work manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-Charge.In cement mortar

6.4.1 Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in:Cement mortar 1:4 ( 1 cement : 4 coarse sand)

od254862/2023_2024 Providing and laying water proofing treatment in sunken portion of WCs, bathroom etc., by applying<br>cement slurry mixed with water proofing cement compound consisting of applying : a) The existing<br>surface shall be thoroughly cleaned using wire brush and coir brush, in order to remove all deletrious<br>matters, oil, grease, etc. b) Grooves shall be cut along concrete construction joint, wall - slab joint and<br>filled with cement mortar admixed with CERA LATEX SBR @ 2.5 kg/bag of cement c) G.I Nipples shall<br>be fixed at weak locations and pressure grouting using cement slurry admixed with expanding grouting<br>additive CERA EXPAN 250 @ dosage of 225 gms/ bag of cemnt. d) Acrylic polymer based water proofing<br>sysytem CERALASTIC (two pack system compound A liquid and compound B powder) in the proportion<br>of 1:1:5 (one part water, one part compound A liquid and 5 part compound B powder) shall be applied in<br>two coats

od255273/2023_2024 Dismantling existing Plastering concrete floors and making level Works include using scaffolding at slope of the roof and stacking of serviceable material and disposal of unserviceable material from terrace floor within 50 metres lead.

od255274/2023_2024 Dismantling existing Screed concrete floors and making level including stacking of serviceable material and disposal of unserviceable material within 50 metres lead.

R. Sajikumar

Thalikkunnil Engineering Services (P) Ltd.