Sundarban Affairs Department Tender

Providing and laying nominal mix Cement concrete (with mix proportion 1:1.5:3) / M-20 grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm of Pakur or other approved variety including Screening and cleaning of aggregates, if necessary, both of approved quality and cement, as necessary, compacting by vibrator or other suitable means, cost of curing with water, cost for quality control, sampling, testing etc. and including placing a Separation membrane of impermeable PVC sheet 125 micron thick transparent or white in colour laid flat with minimum creases. Before placing the separation membrane, the sub-base shall be swept clean of all the extraneous materials. Wherever overlap of plastic sheets is necessary, the same shall be at least 300 mm and any damaged sheathing shall be replaced at the Contractor's cost. Including carriage of all materials to site but excluding the cost of staging, shuttering and and reinforcement if any.

Providing and filling joints sealing compound as per drawings and techinical specifications with coarse sand and 6% bitumin by weight.

Supplying, dressing and stacking at site bamboo pins above 5 cm. diameter and upto 7.5 cm. diameter. (Dia. to be measured at mid length).

Driving bamboo pins in standing or flowing water including scaffolding and driving appliances. (a) Where boats are not necessary.

Supplying, fitting and fixing with iron nails half split bamboo wailing pieces (av. dia. of bamboo not less than 5.0 cm.)

Supplying empty cement bags in good condition.

Filling empty Cement bag with dry earth or sanfd, stiching the bag (cost of thered including) and carring and placing them in position and all incidental charges complete but excluding cost of filling materials, (Earth or sand) and gunny bags.

Earth work from borrow pits for making embankment or for repairs to embankment within an initial lead of 30 metre and lift of 1.50 metre including breaking clods and depositing the same in layers not exceeding 25 cms. Layers and rough dressing etc. complete as per profile.

Earth work for making embankment or for repairs to embankment, closing breaches etc. including supply and carriage of earth by trucks or carts or by other conveyance over land including loading, transporting & unloading all lifts bothways and head load where necessary complete within a total lead of ; (a) Beyond 510 metre to 1 km.

Supplying, laying, fitting and fixing R.C.C. spun pipes and collars with cement mortar (1 : 3) including fixing the pipes and collars with jute, pitch etc. including the cost and carriage of spun pipes at site excluding the cost of collars. a) Spun Pipe - 600 dia, NP2 Grade.

Supplying RCC spun pipe collars including loading , carriage , unloading at site. (a)Collar-600 dia, NP2 Grade

Providing & fixing Concrete Sign board as pr IRC Specification of size 900 x 750 x 37 mm. Thick made with by RCC 1:/2:3 with pakur variety stone chips reinforced with double layer IRC frbric (75 x 75 mm. Mesh) and fixed with necessary nuts & bolts on two RC precast posts 100mm x 150mm. of height 2.65mm of which to 750mm. os of section 100 x 13 mm. and 1.90 meter above GL & 0.75 meter below GL including digging hole, repacking the same with cement concrete 1:3:6 with jhama khoa or with local stone chips etc. complete including painting two coats on both faces lettering sign marks etc. as per direction of the Engineer-in-Charge. (the rate is inclusive of cost of reinforcemnent, concrete, shuttering, nuts & bolts, washer etc. complete)

GST@ 12%

Labours Welfare CESS @1% (sub total + GST 12%)