Defence Research And Development Organisation Tender

Anchoring Pull out test for 50T: Pull out test of anchor including fixing of test anchor

Anchoring and Supplying of CI Bollard : Supplying of CI Bollards with MOC as per IS:210 FG-260 Grade Bollard of 50T pull capacity conforming to standard specifications and drawing with all fixture such as Hot dip galvanized M42 foundation bolts /studs of 800mm length, nuts and washers (7 sets), painting the exposed surface with two coats of anti corrosive epoxy paint over a coat of epoxy primer, etc., complete with NABL Lab T C for Tensile Strength and Hardness Test. Drilling 32mm Dia Hole at depth up to 18 mtrs in rock strata in reservoir and bank by using portable drilling equipment including grouting. Each Bollard should have 8 Nos. of Anchoring. Providing and fixing of self drilling anchors of 32mm diameter, 18m length having rupture strength (Both in tension & compression) of 214 kN/m Grade of steel Fe500 Rupture stress not less than 435 Mpa, with attached drill bit, washer plate 150 x 150 x 8 millimeter including coupler for connecting bars, inserting quick fixing cement resin and full length grouting for intermediate (cortical) anchoring along with “S” clamps & Steel bar of 18mm dia. As required for fixation of Geogrid with anchor bars including all ancillary works and including all material, machinery, labour etc., complete and as per the directed by of Engineer In-Charge. Grouting under water: supply and pouring the anti washout shrinkage Compensating Underwater Grout whose Compressive Strength 1 Day 14MPa 7 Days 44 MPa. 28 Days 54MPa for water power ratio of 0.22. The grout mix can be placed from 25mm to 150mmin single pour and under water 75mm thick only. After drilling using high speed water jet inside the hole to clean the dust inside the hole Make a funnel which will inserted inside the hole and the depth of the concrete/Rock. Mix the grout ensure the flow test as per marsh cone and pour the grout inside the funnel which was placed inside hole slowly move out the funnel as the grout is moving inside the hole. When the grout is in-flowable in nature insert the reinforcement in side the hole. Grouting above ground water: supply and poring the shrinkage compensating Micro concrete Compressive Strength 28 Days 60MPa for water power ratio of 0.16. The Micro concrete mix can be placed from 25mm to 150mm. Higher thickness to be buildup by adding the 6 mm down grade chips. After drilling, using high speed water jet inside the hole to clean the dust inside the hole Make a funnel which will inserted inside the hole and the depth of the concrete/Rock Mix the grout ensure the flow test as per marsh cone and pour the grout inside the funnel which was placed inside hole. Slowly move out the funnel as the grout is moving inside the hole. When the grout is in flowable in nature insert the reinforcement in side the hole.

Permanent form work that provides a surface for the concrete to be cast on or cast against and remains as an integral part of the structure includs Shuttering including strutting, propping etc. for Foundations, footings, bases of columns at all levels, heights, depths, leads etc., all complete.