VENU-II IRRIGATION SCHEME. Rehabilitation and treatment of Non Overflow Section over water as suggested by DSRP-1 for Venu-II Irrigation Scheme

NAME OF WORK :-

Rehabilitation and treatment of Non Overflow Section over water as suggested by DSRP-1 for Venu-II Irrigation Scheme.

BILL OF QUANTITIES (SCHEDULE - B)

(A) Percentage Rate Tender (Upto Rs. 50 Crore)

Item Description of Item Quantity Unit Estimated Rate Amount

No. (with brief specification and reference to book of specifications) In Figure In words

1 Providing and carrying out repointing of masonry joints for spillway or other hydraulic 367.00 Sqm. 2624.91 Rupees: Two

structures using high-performance cementitious mortar conforming to EN 1504-3 Class R4, Thousand Six

crystalline technology based or polymer-modified, high strength, non-shrink, impermeable Hundred Twenty

and chemically resistant, having compressive strength not less than 45 MPa and bond Four & Ps. Ninty

strength not less than 2 MPa, including inspection of exposed surface by hammer One Only.

sounding/tapping to identify unsound and deteriorated joints; raking out/removal of existing

mortar from joints to a minimum depth of 20–25 mm or till sound substrate (whichever is

more) by approved manual/mechanical means without damaging adjacent masonry;

removal of loose debris and thorough cleaning of joints and surrounding surface by high-

pressure water jetting to remove dust, laitance, algae and other deleterious materials; pre-

wetting of joints to saturated surface dry (SSD) condition prior to application; application of

suitable bonding coat of water-miscible epoxy (if recommended by manufacturer) to

enhance adhesion; and repointing the joints with high-performance cementitious mortar

conforming to EN 1504-3 Class R4 grade in raised/flush finish, tightly packed in layers to

avoid voids, properly compacted and finished true to line and profile as per specifications;

including curing for minimum 7 days or as per manufacturer’s recommendations; complete

with all materials, labour, tools and plants, scaffolding, equipment, transportation with all

leads and lifts, and all incidental charges as directed by the Engineer-in-Charge.

Item Description of Item Quantity Unit Estimated Rate Amount

No. (with brief specification and reference to book of specifications) In Figure In words

2 Providing and laying high-performance cementitious mortar (Based on EN 1504-3 Class 367.00 Sqm. 10640.56 Rupees: Ten

R4) for structural repair of concrete spillway or other hydraulic structures. The mortar shall Thousand Six

be crystalline technology based or polymer modified, high strength, non-shrink, Hundred Forty &

impermeable, highly abrasion resistant and chemically resistant, having compressive Ps. Fifty Six

strength ≥ 45 MPa and adhesive bond strength ≥ 2 MPa. The work shall include removal Only.

of damaged, loose, cracked, delaminated and unsound concrete/masonry/mortar by

chiseling, cutting or other approved manual/mechanical methods to the required depth as

directed by the Engineer-in-Charge. Cleaning of lift joints, honeycombed areas and

potholes shall be carried out by breaking and trimming the edges. The prepared surface

shall be thoroughly cleaned using high-pressure water jetting at suitable pressure to

remove loose particles, laitance, organic matter, algae, fungi, marine growth and other

impurities to obtain a sound substrate suitable for repair. After surface preparation, a

bonding coat of special water-miscible epoxy primer suitable for bonding old

surface/concrete with new mortar shall be applied uniformly to achieve the required bond

strength. Subsequently, cementitious repair mortar (Based on EN 1504-3 Class R4) of

thickness 12 mm shall be applied, compacted and finished properly including filling of

potholes, honeycombed areas and irregularities as per manufacturer’s specifications and

directions of the Engineer-in-Charge. After completion of curing of the repair mortar, a

compatible crystalline/polymer protective coating of the same approved system shall be

applied over the repaired surface to provide additional waterproofing, durability and

protection against abrasion and chemical attack. The item shall include all materials,

labour, machinery, scaffolding, tools and plants, hire charges of equipments/cranes,

transportation with all leads and lifts, insurance and all incidental charges necessary to

complete the work.

Rupees: Forty Eight Lac Sixty Eight Thousand Four Hundred Twenty Seven & Ps. Forty Nine Only.

I/We are willing to carry out the work at …………………………………………………………...% above/below percent (should be written in figure and words) of the

estimated rates mentioned above. The amount of my/our tender works out as under;

*Estimated amount put to tender Rs. ……………… *Estimated amount put to tender Rs. ………………

Deduct : ……… % below Rs. ………………. Add : ……… % above Rs. ……………….

Net : Rs. ……………… Total : Rs. ………………

In words : Rupees ………………………………………………………………………… In words : Rupees………………………………………………………

1 The Contractor shall exhibit a board with detailed specification and details of work as directed by the Engineer-In-Charge for which no extra payment shall be made.

2 The labour cess will be deducted as per prevailing rules i.e.1% of the work done.

3 GST and Income tax TDS will be deducted at a source while making payments of bills

4 In all R.C.C. Items in Rate Analysis Standard Cement Consumption has been taken as per Govt.G.R.:PRC-10/2017 Cement Consumption/16/C Date:11/05/2017 as

stated in S.O.R.thereforeinR.C.C.items where there is a change as per actual mix design the cost of difference of cement consumption have been deducted from the

rate of original item at the rate of input rate mentioned in all the tender.

Executive Engineer

Signature of contractor. Rajkot Irrigation Division

Item Description of Item Quantity Unit Estimated Rate Amount

No. (with brief specification and reference to book of specifications) In Figure In words