Brahmaputra Board Tender

Filling and laying of Geo bags type–B ( 2.00 m X 1.50m) including excavation of specified silt from flood plain or adjacent chars within a distance of 90 m from work site. Filling geo bags with sand weighing 1700.00 kg after filling, stitching the mouth of the filled bags with polypropylene thread with power driven double needle machine, stacking the same in batches of 100, carrying the same in the dumping site including all handling charges and local carriage within a distance of 100m and laying properly as directed. (Geo bags and polypropylene thread will be supplied by the deptt. b) Without boat

Supplying & laying non woven Geo- textile fabric sheet of 300 GSM manufactured from 100% virgin polypropylene (PP) fibre with minimum properties as ii) Tensile strength ≥12KN/m ii) Mass≥ 300.00Gm/m2 iii) CBR puncture strength ≥3.5KN/m2 iv) elongation @ break (wrap) ≥ 54 % v) elongation at break ( weft) ≥ 60% 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 = 2.00x10.3 m/ sec xii) seam strength = 80% of Geo-textile strength . Stitching of Geo fabric sheet should be Ring spun yarn stitches with 2500-3000 denier double line chin stich with overlap with stitches along the edges @ minimum 15 stitches per 100mm. Each roll of Geo fabric sheet should be supplied in properly packed bundle and should be marked with name of manufacturer and Batch No. clearly on each bundle and mentioning properly the GSM and type of polymer . Test certificate from approved NABL accredited and ISO certified laboratory should be invariably be submitted against each batch of material)

Spreading of earth stacks over the crest and slope of embankment and places as directed in uniform layer of 20 cm thick including breaking clods, dressing, ramming etc. complete where necessary including dressing the embankment before complete as directed.