Procurement of flood fighting materials (PSC Porcupine, Geo-textile bags Type-A and Geo Mega bags) for Water Resources Department (For Nagaon WRD)

Amount

Supply of Pre stressed Cement Concrete (PSC) Porcupine members of size 0.10 m × 0.10 m × 3.00 m with M - 30 grade of cement concrete conforming to IS 1343:2012 using super-plasticizer @1.2 lit/bag of cement with graded broken coarse aggregates up to 20 mm size down conforming to IS 10262:2009 & IS 456:2000 and reinforced with 4 nos. of 4 mm dia. high tensile steel wire cable/strand with necessary cover and 4 mm high tensile stirrups at 250 mm C/C, in conformity with IS-6403:R2002 and stressed to required strength not exceeding 9.18 N/mm, holes of16 mm dia. at 50 cm inside from both ends in the same face and in either face of post another 2 nos. of holes of size 16 mm dia. at 65 mm inside from both ends including properly curing for 21 (Twenty one) days and carriage of porcupine members from factory to the stack yard within a distance up to 50 Km including loading, unloading & stacking complete as directed.

Supply of Geo-textile bags of type-A (1.03 × 0.70 m) inner to inner made of Geo-textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin Polypropylene (PP) fibre with minimum properties as per IS 16653:2017 i. Wide Tensile strength (MD) ≥ 20KN/m & Wide Tensile strength(CD) ≥20 KN/m ii. Elongation (MD) ≥50% & Elongation (CD) ≥ 50% iii. Abrasion ≥ 95% iv. Trapezoidal Tear Strength (MD) ≥ 450N & Trapezoidal Tear Strength (CD) ≥ 450N v. CBR Puncture strength ≥ 4000N vi. Permittivity ≥ 1.10s – 1 vii. Permeability ≥ 40l/m2/sec viii. AOS ≤ 75 micron ix. UV Resistance @ 500 hours retained Tensile strength (MD) & (CD) ≥ 80% x. Mass ≥ 400 gm/m² xi. Thickness at 2KPa ≥ 3 mm xii. Seam strength ≥ 80 % of actual fabric strength. Stitching of Bags should be Ring Spun Yarn stitches with 2500-3000 denier double line chain stitch with overlap with stitches along the edge @ minimum 15 stitches per 100 mm. (Bags are to be supplied of 100 numbers in a bundle, properly packed with each bag having proper tag with name of Manufacturer, Batch Number, the GSM and type of polymer encrypted and stitched on top corner and each bag is to be marked with “WRD Govt. of ASSAM” to be printed distinctly. Test Certificate from approved NABL accredited and ISO (Certified Laboratory should invariably be submitted against each batch of material)

Supply of Geo Mega Bags (Size 2.00 m × 1.50 m) inner dimension made of composite layers of Geo-textile as per specifications below: Woven Geo-textile for the outer cover. The woven geo textile is PP woven with UV resistant slit film tape fibre with MAVR values of the following properties. Geotextile used to manufacture geo-textile bags should have high mechanical properties for enhanced durability along with enhanced puncture, abrasion and U.V. resistance characteristics. Geo-textile should be inert to biological degradation and resistant to naturally encountered chemicals, alkalis and acids.  Weight (ISO-9864/ASTM D5261) ≥ 210 Gms/Sqm, Tensile strength (MD) (ASTM D4595) ≥ 29 kN/m. Tensile strength (CD) (ASTM D4595) ≥ 29 kN/m. Tensile Elongation (ASTM D4595) ≥ 5% & ≤ 25%. Grab Elongation (ASTM D4632) ≥ 5% & ≤ 25%. Tensile strength (ASTM D4632) = 1.5 kN. UV resistance (ASTM D4355) = 80%/500 hrs Non-woven Geo-textile for the inner layer. It is needle punched non-woven geo-textile made of 100% polyester staple fibres which are formed into a random network for dimensional stability. It should resist UV degradation, rotting and alkalis Weight (ISO-9864/ASTM D5261) ≥ 150 Gms/Sqm,Tensile strength (MD) (ASTM D4595) ≥ 5kN/m. Tensile strength (CD) (ASTM D4595) ≥ 5 kN/m. Tensile Elongation (ASTM D4595) ≥ 5% & ≤ 25%. Grab Elongation (ASTM D4632) ≥ 5% & ≤ 25%. Tensile strength (ASTM D4632) = 1.5 kN. UV resistance (ASTM D4355) = 35%/500 hrs. (Bags are to be supplied of 100 numbers or part in a bundle, properly packed with name of Manufacturer 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 invariably be submitted against each batch of material). FOR GUWAHATI (To be supplied only as emergency flood fighting material during flood season)

Ashok Kumar Jain (BID ID -264899)