Water Resources Department Tender

Supply of Geo- textile bags of type –A (1.03 x 0.70m) made of Geo textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin polypropylene (PP) fibre with minimum properties as (i) Tensile strength ≥ 12.4 KN/m (ii) Mass ≥400.00 Gm/m2 (iii) CBR Puncture strength ≥1550 N/m2 (iv) Elongation @ break (Warp) ≥ 54% (v) Elongation @ break (Weft) 52% (vi) Abrasion ≥ 70% (vii) UV Resistance @ 500 hours ≥ 70% (viii) AOS ≤ 75 micron (ix)(Permittivity) ≥ 1.25 (x) Trapezoidal Tear Strength ≤ 340 N (xi) permeability = 2.00 x 10-3 m/sec (xii) Seam strength = 80% of geo textiles strength. Stitching of Bags should be Ring Spun yarn stitches. With 2500 – 3000 denier double line chain stitch with overlaps with stitches along the edge @ minimum 15 stitches per 100 mm. (Bages are to be supplied of100 numbers or part in a bundle, properly packed with name of Manufacture and Batch number is to be marked on each bag with “WRD Govt of Assam” to be printed on each bag and mentioning properly the GSM and type of Geo bag polymer. Test Certificate from approved NABL accredited and ISO Certified Laboratory should in variably be submitted against each batch of material.)

Supply of galvd. Wire netting sheets made of 8G. wire of 152 mm (6”) square mesh in sheet of overall size 2.57m x 1.66 m. (8’-6” x 5’ - 6”) including 76 mm. projection of each wire on all sizes beyond the net size (8' x 5') 2.42m x 1.50m having nots of 12 gauge at every joint including loading, unloading and stacking properly etc. complete as directed by the deptt., (Tax extra).

Filling and laying in cage with sand filled Geo bags of size1.03 x 0.70m. including excavation of specified sand from flood plain or adjacent chars within a distance of 90m. of the work site, filling geo bags with sand weighing 126.00Kg. after filling, stitching the mouth of the filled bags with polypropylene or polyester thread by power driven double needle machine, stacking the same in batches of 100, carrying the same to the dumping site including all handling charges and local carriage within a distance of 150m. and laying properly in cages made of wire netting sheets of size 2.57x1.66m. of 8G. galvanized wire making the cage from 2 nos. of wire netting sheets by tying the projected wires complete as directed (Geo bag Wire Netting sheets and polypropylene/ polyester thread will be supplied by the department free of cost)

Filling and laying of Geo bags of size 1.03m X 0.70m including excavation of specified silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand weighing 126.00 Kg after filling ,stitching the mouth of the filled bags with polypropylene thread by power driven double needle machine, stacking the same in batches of 100, carrying the same to the dumping site including all handling charges and local carriage within a distance of 150m and laying properly as directed.(Geo Bag and Polypropylene thread will be supplied by the department free of cost)

Supply of special threads for Geo-bags to meet 4 rows of type 101) Stitch on the top/open end of bag after filling the materials and specification etc. (Inclussive of labour 1% cess).