S.M.Engineering Works

• Specification: As Per IS 2720 (Part XBII)- 1966 BS 1377; EN DD ENV 1997-2; ASTM D2434;AASHTO T215 Clays and silts are tested using the technique. Flow of water through the specimen is observed by monitoring the rate of fall of water in the tube. It is essential that soils of very low permeability are sealed inside the cylinder to prevent seepage along the sides of the specimen. Before testing, the specimen must be completely saturated with water as the presence of air will restrict the flow of water. Three glass stand pipes a stand with nine glass tubes of 6mm, 10mm, 20mm, 25mm, 40mm, 50mm, 60mm, 70mm, 75mm, bore tube is provided with over flow arrangement for constant head tests. The remaining tubes are used for falling head test.

Product description:

• Standards: IS 2720 (PART XVII) 1966
• Specification: This equipment is used for testing the permeability of granular soils (sands and gravels).The specimen is formed in a permeability cell and water is passed through it from a constant level tank Take-off points located along the sides of the permeability cell are connected to three manometer tubes mounted on a panel complete with a meter scale. Water passing through the specimen is collected and measured, either for a specific quantity or over a period of time. The reduction of head is noted from the variation of water level in the manometer tubes. Comprising three glass tubes of constant bore, meter scale and connecting tubing for cell pressure take-off points, all mounted on a free-standing panel. Manufactured from transparent plastic with attachment for wall mounting. The inlet, outlet and overflow pipes are fitted to the base of the tank and can be adjusted for height within the tank. Supplied complete with connecting tubing.
• Clays and silts are tested using the ‘falling head’ technique. Flow of water through the specimen is observed by monitoring the rate of fall of water in the tube. It is essential that soils of very low permeability are sealed inside the cylinder to prevent seepage along the sides of the specimen. Before testing, the specimen must be completely saturated with water as the presence of air will restrict the flow of water Specification : The equipment comprises one each : - Gun metal mould - 100mm I.D. x 127.3mm high x 1000ml Volume. - Gun metal mould extension collar - 100mm dia x 60mm high for the above mould. - Gun metal drainage base plate with a recess for a porous stone, GI Tank

• Model No.: SMEW-0042 (Motorized Single and Twelve Speed)
• Standards: IS 2720 (PART XIII)
• Specification: The apparatus comprises of the following.
• Loading Unit: Supplied with load yoke with direct and lever system for applying load. Normal stress capacity 8 kg/sq. cm. Load is applied either directly or through a counter balanced detachable lever. Provision is made for the load to be applied either through a steel ball recessed in the loading pad or direct through a boss on the pre calibrated loading yoke. The loading unit is provided with V strips and roller strips for frictionless movement of shear box housing.
• Shear Box Assembly: Comprising direct shear box in two halves for a square specimen size 60 x 60 x 25mm one pair of plain gripper plates, One pair of perforated gripper plates, one pair of porous stones, one top of loading pad.
• Shear Box Housing:Accommodates the direct shear box assembly. Complete with two ball roller strips. Specimen cutter: for cutting 60 x 60 x 25 mm. Specimen form larger samples. Set of weights to give a normal stress of 3kg/sa.cm. Through larger as following:

• Complete set as above but without proving ring. Net weight 140 kg.
• Essential Accessories: High sensitivity compression proving ring. Cap 200kg. One consolidation dial gauge 0.01mm x 25mm and one strain dial gauge 0.01mm x 25mm
• Optional Extras: Additional set of weights to give a normal stress of 5 kg/cm2. Soil sampler for 60mm x 60mm specimen and test forms pad of 50.
• Spares: Porous stone for 60mm x 60mm size sample available in pairs. Unit is electrically operated to give the following 12 rates or strains. 1.25, 0.625, 0.25, 0.125, 0.05, 0.025, 0.01, 0.005, 0.002, 0.001, 0.004 and 0.0002 mm/min. The apparatus is suitable for operation on 230 Volts Single Phase A.C. Supply.
• Note: Digital Direct Shear Test is also available.

• Standards: IS 2720 (PART-VII) ASTM D-42, BS 1377 AASHTO T 90
• Specification: The complete set consists of one each:

• Glass plate 20cm x 15cm having round ends
• Brass or stainless steel rod 3mm dia x 150mm long
• Flexible spatula 15 cm
• Set of 6 moisture containers
• Porcelain basin 150mm dia
• Plastic wash bottle 500ml
• Note: Glass Plate size 500 x 500 x 10mm can be supplied at an extra cost

• Standards: 0001
• Specification: The apparatus consists of a panel for wall mounting on which are fitted 1.0 to 10kgManom/cm sq x 0.1kg cm. sq. a pressure gauge, bourdon tube type 15 cm diameter: Glass u-tube manometer for measuring low positive pore pressures negative pore measures and checking zero error of pressure gauge. It is provided with a mercury trap (mercury supplied at extra cost.) Null indicator made out of clear transparent Perspex with mercury trap and cursor to indicate the mercury level. Burette: 50ml burette for measuring the volume change in the soil specimen. Pressure pump fitted with four sleeve packed valves, operated by means of a hand wheel on the end of the piston rod which is threaded through the pump cap and gives a smooth, fine adjustment of pressure. Copper coil and water reservoir is fitted on board with complete stand assembly. The unit is tested against leaks up to 10kg/cm sq.