Higher And Technical Education Department Tender

Three cell Concrete Water Permeability Apparatus: Each cell should be made of steel and provide with a top plate and funnel at the bottom having gasket seals held in position through bolts and nuts. The permeated water is collected in glass bottles attached at the bottom. Control valves should be provided to each test stall. All multi units to be provided with end pressure gauges. Each unit should be provided with chamber pressure gauges of 0-21 kg/cm2 and test pressure gauge of 0 – 17.5 kg/cm2. The apparatus should also be supplied with a measuring cylinder 500cc to measure percolated quantity to water.  Three cell Cylinder 100mm dia  Cylindrical mould, Cast iron, Split 100 mm high lengthwise for 100 mm dia x 100 mm high specimens.  Compressor Capacity for permeability apparatus 15 kg/cm2: 2 HP  Cylindrical Mould: 100 mm X 100 mm  Pressure: 0-15kg/cm sq

Abrasion Resistance Test for Hardened Concrete: (ASTM C 1138 -Underwater method)  Rotating Device- A drill machine with a chuck capable of holding and rotating the agitation paddle under test condition at a speed of 1200 + 100 rpm  Agitation Paddle  Test container – A steel pipe, 305 + 6 mm inside diameter, 450 + 25 mm fitted with a water tight steel base. A six steel blocks welded on the base plate to support the specimen  Abrasive charges – 1 inch dia ball: – 10 no and 0.75 inch dia :– 35 no. and 0.50 inch dia ball : – 25 no

Plate Bearing Apparatus:  Hand Operated Hydraulic jack with capacity 50 tonne  Hydraulic hand operated pump with 200mm Dia Load Gauge capacity 50 tonne  High Pressure Flexible Metallic Pipe 5 m long  Ball and Socket Arrangement consisting of two steel plates, with one steel ball in-between the plates : 1 Set  Extension rod: 12mm dia x 25 cms long for taking dial gauge readings – 16 Nos  Magnetic base with female thread on top, for holding extension rod - 4 Nos  Top end plate, 50 mm dia with male thread for fitting on the extension rods and positioning the dial gauge plunger – 4 Nos  Column 15 cms dia and 50 cm long with flanges complete with 4 bolts and nuts – 1 No.  Column 15 cms dia and 25 cm long with flanges complete with 4 bolts and nuts – 2 Nos.  Datum bar, Light weight, Portable, total span 5 metre, height approximate 30cms mounted on two removable legs made of two parts Provision for datum Bar of 2.5m span to be used. A square leg to be provided for this purpose and two quick release clamps for positioning and holding the dial gauge brackets 2 Nos.  Anchor spikes – 10 Nos.  Quick release clamp for positioning dial gauge bracket  Dial gauge 25 mm travel, 0.01 mm least count – 4 Nos.  Grooved M.S Plate 30 cm x 30 cm square x 25 mm thick  Plain M.S Plate 30 cm X 30 cm square x 25 mm thick  Load Truss capacity 50 tonne The truss supplied must be of welded I-Girder construction in two halves which can be bolted together when required. The lower chord, the cross pieces for holding the truss down and the vertical thrust members are all of welded box type construction with two channels enclosed and welded to an I-girder. The truss should consist of following parts:  Truss- 2 parts ; B22 Joists – 2 parts;  Anchor spikes – 200;  Semi-cylindrical anchors – 16  Bolts with nuts for anchor straps – 32;  Anchor straps – 16;  Guy wires with six turn buckles – 6  Top flange splice plate – 1;  Small bolts with nuts for splice plate – 8;  Jointing bolts with nuts – 8  Bolts with nuts for bottom splice plate – 6;  Sledge hammer – 1;  Spanners - 2