Package No.APART/NOCP/WF/01

Amount

Demolishing RCC work including stacking of steel bars and disposal of unserviceable material as directed for all levels

Preparing the RCC surface in roof slab, chajjas, terraces, sunken slabs, septic tank, OH tank, raft slab, walls etc. by thoroughly cleaning with wire brush etc. followed by power washing for making the surface absolutely free from any foreign particles like dust, oil, grease etc. and allowing surface to dry complete as directed at all levels.

Grading roof for water proofing treatment with Cement Mortar 1:3 (1 cement : 3 coarse sand)

Grading roof for water proofing treatment with (a) Cement concrete 1:2:4 (cement: 2 coarse sand: 4 graded stone agg. 20 mm nominal size)

Repairing of spalled concrete in slabs/ chajjas etc. by the following processes as specified and directed by the department complete at all levels: Concreting the slab/ chajja etc. with concrete 1:1.5:3 (1cement : 1.5coarse sand : 3aggregate) or M-20 grade admixed with Conplast P211 of fosroc chemicals @ 150ml per bag of cement followed by proper curing (Formwork & concrete to be measured and paid separately).

Supplying, mixing, laying and applying the following waterproofing systems over Raft slabs, Roof slabs, Terraces etc. including curing complete as specified and directed by the Department at all levels.: (i) 1mm thick single coat of Master Crete M-81 of Choksey Chemicals /Dr. Sealkit Sealcrete (Asian Chemicals)/RHEOMIX 131of BASF mixed with cement in the ratio 1:2 as a prime coat. (ii) 3mm thick Polymer modified mortar - Cement sand mortar (in prop 1:3) mixed with Master Crete M-81/Dr. Sealkit Sealcrete (Asian Chemicals)/RHEOMIX 131of BASF @ 15% by weight of cement. (iii) 1mm thick coat of Master Crete M-81 /Dr. Sealkit Sealcrete (Asian Chemicals)/RHEOMIX 131of BASF mixed with cement in the ratio 1:2 as final coat. Using RHEOMIX 131 OF BASF

Providing Grouting in R.C.C. walls by drilling holes @ 1M c/c upto half of the wall depth in zigzag manner or as per drawings using a drill machine and fixing a nozzle of 18 to 20mm dia. for injecting a grout slurry of cement, water and expanding grout admixture Master grout CPG1 of Choksey Chemicals /Dr. Sealkit NSPG (Asian Chemicals)/ FLOWCABLE 50 OF BASF @ 0.5% by weight of cement till the refusal of injected grout material from adjacent nozzle (grouting operation pressure shall be in between 2 to 4kg per sq.cm.). Followed by cutting the exposed nozzle so as to make the wall free from the grouting pipes and to seal the gap with polymer modified mortar as specified and directed by the Department complete at all levels.

Providing, supplying, mixing and champhering the edges along joint of wall/ parapet wall and raft/ roof slab having champhered dimension of 150mm x 150mm with cement sand mortar (prop.1:4) mixed with Master Proof IWP-1 of Choksey Chemicals /Dr. Sealkit No. 1 of (Asian Chemicals)/ RHEOMAC 707 of BASF@ 0.2% by weight of cement over a primer coat on the area to be champhered with a combination of 100% acrylic Polymer Master Crete M-81/Dr. Sealkit Sealcrete (Asian Chemicals)/ RHEOMAC 115 of BASF of Choksey Chemicals and cement in the ratio 1:2 to be applied by brush as specified & directed by the Department complete.

Supplying, fitting and fixing suction pipes plain/bevel ended, conforming to relevant IS codes of practice including supplying and fitting of accessories, lowering of assembly pipes concentrically in the casing pipes complete as directed. PVC PIPE 110mm diameter