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CPWD Analysis of Rates · Water Proofing

Providing and applying crystalline mortar by mixing in the ratio of 4.5 : 1 (4.5 parts crystalline mortar : 1 part water) for the treatment of faulty construction joints, cracks, tie rod holes and spalled & honeycombed surface of RCC underground structures like basement, water tanks, bridge deck etc. to ensure water tightness. The crystallie mortar shall conform to the EN 1504-3 having compressive strength Class R4 ≥45 MPa and adhesive bond strength Class R3 ≥1.5 MPa. The work shall be carried out all complete as per specification and the direction of the EngineerIn-Charge. The product performance shall carry guarantee for 10 years against any leakage

For patching of tie rod holes, prepared tie rod hole surface and then primed the area with integral crystalline slurry @0.070kg/sqm and while the surface is tacky repair and then filled the tie rod holes with crystalline mortar@0.040kg per hole. The crystalline mortar should be tightly rodded into tie rod holes or packed tightly (For 25x25x25 mm tie rod hole, use 0.040kg to fill the hole)

CPWD DAR 2023›Water Proofing
Item number
22.25.2
Analysis basis
Details of cost for 1 no. hole
Priced inputs
4
Derived rate
₹23.05 / no

Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 22.25.2 — Providing and applying crystalline mortar by mixing in the ratio of 4.5 : 1 (4.5 parts crystalline mortar : 1 part water) for the treatment of faulty construction joints, cracks, tie rod holes and spalled & honeycombed surface of RCC underground structures like basement, water tanks, bridge deck etc. to ensure water tightness. The crystallie mortar shall conform to the EN 1504-3 having compressive strength Class R4 ≥45 MPa and adhesive bond strength Class R3 ≥1.5 MPa. The work shall be carried out all complete as per specification and the direction of the EngineerIn-Charge. The product performance shall carry guarantee for 10 years against any leakage For patching of tie rod holes, prepared tie rod hole surface and then primed the area with integral crystalline slurry @0.070kg/sqm and while the surface is tacky repair and then filled the tie rod holes with crystalline mortar@0.040kg per hole. The crystalline mortar should be tightly rodded into tie rod holes or packed tightly (For 25x25x25 mm tie rod hole, use 0.040kg to fill the hole) — is derived from 4 priced inputs for 1 no and works out to ₹23.05 per no after water charges, GST, CPOH and cess. The full build-up is below.

  • MATERIAL :
CodeInputUnitQuantityRate (INR)Amount (INR)
0353Crystalline mortar@0.040 kg per holeCrystalline mortarMaterialkilogram0.04209.008.36
9999For making crystalline mortar and repair work etc..MaterialL.S.2.92.276.58
9999SundriesMaterialL.S.0.32.270.68
9999Carriage of material and tools cost etc..MaterialL.S.0.252.270.57
TOTAL
16.19
Add 1 % Water charges on “W”
0.16
TOTAL
16.35
Add GST on “X” (multiplying factor 0.2127)
3.48
TOTAL
19.83
Add 15% CPOH on “Y”
2.97
TOTAL
22.80
Add Cess @ 1% on “Z”
0.23
Cost for each hole
23.03
Say
23.05

From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1863. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.

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