Purchase of Equipments ( S.No 1 to S.No 11 ) for Civil Department

Direct Shear Machine • Standard Compliance: The equipment shall conform to Bureau of Indian Standards IS 2720 (Part 13) and equivalent ASTM International ASTM D3080. • Technical Specifications: Shear Box Size:60 mm × 60 mm × 25 mm specimen size (complete with grid plates, porous stones, and specimen cutter). • Normal Load Capacity: Minimum 5 kN with loading yoke and calibrated loading hanger set. • Shear Load Capacity: Minimum 2.5 kN or 5 kN with calibrated digital load cell (with calibration certificate). • Rate of Strain (Shear Displacement): Single speed drive with controlled displacement (motorised model preferred for uniform rate control). • Displacement Measurement: Horizontal displacement shall be measured using a digital displacement sensor/LVDT with resolution of 0.01 mm or better with a range of 0 to 25mm. • Loading Frame: Rigid, heavy-duty loading frame with corrosion-resistant finish. • Drive System: Motorised with single phase 220230 V, 50 Hz power supply. • Accessories (to be supplied complete): Shear box assembly Proving ring with calibration chart Two dial gauges Loading weights and hanger porous stones (2 Nos.) Specimen cutter Tool kit.

Core cutter • AIM 161 Model Core Cutter: Seamless steel tube (typically 100mm ID, 130mm height, 3mm wall thickness). Steel Dolly: 25mm high, 100mm ID, to prevent damage while driving. Steel Rammer: For driving the cutter. Tools: Spade, straight edge (knife), moisture containers

Slump Cone Apparatus • 300MM HT, BOTTOM DIA 200MM, TOP DIA 100MM WITH Base plate and tamping rod material make: Mild steel & Measuring scale made of stainless steel.

Compaction Factor Apparatus • Construction: Fabricated from heavy gauge mild steel sheet, rigid and durable, with corrosion-resistant finish. • Hopper Arrangement: Two conical hoppers mounted vertically above each other. Bottom trap doors with quick release mechanism. Each hopper fitted with hinged doors to allow free fall of concrete. • Cylinder (Receiving Mould): Standard cylindrical mould placed at bottom. Internal diameter: approx. 150 mm Height: approx. 300 mm Made of steel, machined smooth finish. Support Frame: Strong steel frame with stable base to maintain vertical alignment of hoppers and cylinder. • Accessories (Complete Set): Trowel, Hand scoop, Steel tamping rod, Measuring scale. • Working Principle: Measures the degree of compaction of fresh concrete by allowing concrete to fall through two hoppers into a cylinder. Compaction Factor = (Weight of partially compacted concrete / Weight of fully compacted concrete). • Application: Suitable for testing workability of low workability concrete mixes, commonly used in diploma and undergraduate laboratories. Warranty & Documentation: Minimum 1-year warranty Operation manual to be supplied

Weighing Balance -30 kg Capacity • Capacity: 30 kg • Type: Digital weighing balance • Least Count / Accuracy: 1 g or better • Display: LED/LCD digital display • Power Supply: AC mains with inbuilt rechargeable battery backup • Platform: Stainless steel, sturdy construction • Functions: Tare, zero tracking, overload indication • Operating Time (Battery): Minimum 8 to 12 hours • Standards: Legal Metrology approved (preferred

Pycnometer • Capacity: 1 litre • Material: Borosilicate glass • Type: Specific gravity pycnometer with conical screw cap • Accuracy: Suitable for fine aggregate specific gravity tests • Finish: Smooth, leak-proof • Standards: IS 2386 (Part III) • • Accessories: Cap with air-tight fitting

Seive test for fine aggregate • Type: IS standard test sieves for fine aggregate • Material: Brass frame with brass woven wire mesh • Diameter: 200 mm • Height: As per IS specification • Aperture Sizes (Complete Set): 4.75 mm, 2.36 mm, 1.18 mm, 600 µm, 300 µm, 150 µm, Pan & Lid • Standards: IS 2386 (Part I) / IS 460 • Finish: Smooth, corrosion-resistant • • Accessories: Lid and bottom pan included

Seive test for coarse aggregate • Brass; 200 mm dia; complete set (804.75 mm); lid & pan.

Rockwell cum Brinell harness testing machine with Intentor set box - 1 No • Min Initial test force :10 kgf, • Total test force Range: 60kgf,100kgf,150 kgf, 187.5 kgf and 250 kgf • Max. height of specimen :215 mm • Min Distance from indenter center to machine wall :132 mm • Accessories: Steel Ball Preferred Indentor Ø1/16" • Preferred Steel Ball: Ø1/16" And with all standard Accessories to run the machine. • 2.5 mm and 5 mm steel ball indentor, Brinell microscope. HR-B, HR-C and Brinell test blocks. (Test specimens mild steel, brass and aluminium each 3 numbers).