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105 - Industrial Estate,
Ambala Cantt-133001,Haryana (India)

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Civil Engineering Lab

 

Cement Sampler

This is a brass tube approximately 53cm long and 2.8 cm I.D. with a wooden handle. Total length approximately 73cm. The tube hasthe sharp angular edge which conveniently pierces cement bags. An air hole of approximately 3mm die is drilled on the tube neahandle. Total sample collected at one time is 300cm 3 approximately.

 

Blaine's Air Permeability Apparatus

The apparatus is used for determining the fineness of cement in terms of specific surface expressed as total surface area in squarecentimeters per gram of cement. This is a variable flow type air Permeameter.

Specifications: The apparatus consists one each ofpermeability cell 12.5cm I.D., Manometer 'U' type mounted on stand with a built in a stop cock, Perforated disc, Plunger Rubber stopper,Rubber tube 30cm long. Spares and accessories: Packet of 12 filter paper discs. Non-perforated disc. Suction bulb.

 

Lea And Nurse Air Permeability Apparatus

The method and results obtained from this apparatus depend upon the rate at which air flows under a given pressure gradient through a bed of powder of known density and voids content, in order to determine the surface area of the individual particles.

Specifications: The complete equipment comprises of one Air permeability Cell Lea and Nurse type for areas 500 to 10000sq.cm/gm. Complete with perforated plate one capillary tube, one plunger for compaction of sample and a wooden case. Accessories: Air source, Comprising one Pressure chamber fitted with a valve, regulator, connecting tube, a foot pump and two drying towers. Manometer liquid in 500 ml bottles.

 

Air Permeability Apparatus (Rigden Type)

Comprises one air permeability cell for range 500 to 10000sq.cm/gm. The cell is complete with a perforated disc and a compacting plunger. The instrument is supplied with 'U' Tube manometer having an isolation tap assembly and a suction bulb., This apparatus is mounted ina wooden cabinet.

 

Vicat Needle Apparatus With Dashpot

This instrument is used for determining the normal consistency and setting times of cement and 'A' Class limes.

Specification: The apparatus consists of a metallic frame bearing a freely movable rod with a cap at top, one vicat mould, splittype and glass base plate and one set of needles one each initial needle, final needle and consistency plunger.

 

Le Chatelier Mould

Same as above but in addition is fitted with a dash pot which facilitates gentle levering of the needles.

Accessories: Mild steel base plate 5inches x 5inches. Fulcrum mould, brass, 70mm 1.0 base die x 60mm I.D. top dia, 40mm height. Note: 1) Normally set of needles and mould which meet IS requirements as per IS. 5513 are supplied. While ordering please specifty the specification code of the instrument required. 2) Vicat needle apparatus for determining consistency of Hydraulic cement, gypsum plaster, lime etc. as per ASTM C 187-58: C 472-62:C 110-58, IS 2542 (Part I) Can also be supplied.

 

Ring Mould

Consists of mould 10cm. dia x 0.5cm. deep and a glass base plate
 

Le Chatelier Flask

Used for finding specific gravity of Hydraulic Cement. Made from Borosil glass. The flask is 243mm in total height, having a bulb of 90mm dia of 250ml approsimate capacity. The long neck of the flask has at top a funnel of 50mm dia in which fits a ground glass stopper. The neck hasover-all 11mm I.D. upper portion is graduated from 18ml to 24 ml with. 1ml graduation just at the bottom of the neck 1 ml capacity is marked in between there is 17ml capacity bulb.

 

Gillmore Needle Apparatus

This instrument is used for determining the time setting of hydraulic cement.

Specification: A base with a vertical shaft and two horizontal arms. The lower arm is adjustable for height. 1 No.. Initial Needle 1/12 inch dia 1/4 lb.wt. 1No.. Final Needle 1/12 inch dia. 1lb.wt. 1 No. Glass base plate. Complete as above.

 

Kelley Ball Penetration Apparatus

The apparatus is used to determine the workability of Portland cement concrete. The Kelly Ball test is considered to be simple and much faster than the slump test. Twice the Kelly Ball reading approximately equals the slump.

Specifications: It consists of a cylinder with a ball-shaped bottom and handle together weighing 15 kg. A strip frame, guides the handle and serves as a reference for measuring the depth of penetration. The handle is graduated in MM. Penetration can be recorded to the nearest 0.5mm.

 

Southard Viscometer

Lime putty consistency can be adjusted using this instrument. A 50mm. I.D. metal cylinder is mounted on a wooden platform. A close fitting piston moces up and down without turning in this cylinder. Working stock is 65mm. A metal bridge is provided to measure degree to which ejected cylinder of putty has slumped. Supplied complete with lime putty density vessel.

 

Ve Bee Consistometer

The instrument is used for workability as well consistency of fresh concrete. A slump cone and a graduated rod supplied with the instrument helps the operator to find out slump values and Vibration Table with container and acrylic disc. Is used to find outwork- ability of concrete expressed in Vee Bee degrees, which is defined as the time in seconds to complete required vibrating at which the fresh concrete flows out sufficiently to come in contract of the entire face of acrylic disc.

Specifications: the equipment consists of: A vibration Table size 380mm long and 260mm wide, resting upon elastic support at a heightof about 305mm above the floor, complete with start/stop Switch, Cord and Plug. A holder is fixed to the base into which a swivel arm istelescoped with funnel and guide sleeve. The swivel arm is also detachable from the vibrating Table. A graduated rod is fixed on a swivelarm and at its end a plastic disc is screwed. The divisions of scale on the rod record the slump of the concrete in millimeters. Suppliedcomplete with a sheet metal container with lifting handles which can easily be fixed to the vibrating Table. A slump cone open at both endswith lifting handles and a Tamping rod of size 16mm dia and 600 mm long, rounded at one end.

 

Slump Test Apparatus

It is used for the determination of the consistency of freshly mixed concrete, where the maximum size of the aggregate does not exceed 38mm.

Specifications: The Apparatus consists of one slump cone with handles and foot pieces. The Slump cone has internaldimensions 20cm. dia. At base 10cm. top dia. And 30cm. height. Foot pieces can be fixed to the clamps on the base plate.The base plate has lifting handle for easy transportation. One graduated steel rod 16mm dia. x 600mm long, rounded at one end and graduated in mm, is also supplied.

 

Air Entrainment Meter ( AEE-515 )

As Entrainment of air in limited percentage improves durability of concrete and very low percentages, deteriorate it, measurementof air entrapped in freshly mixed concrete becomes important. The use of chemical additices to increase work ability of concreterequires an air content check to be made. Air Entrainment meters are used to determine air entrained in freshly mixed concrete bypressure method.

Specifications: The apparatus consists of a pressure tight flanged cylindrical measuring bowl of 0.005 cubic meter capacity of maximum size of aggregate 38mm. The bowl is fitted with a removable flanged conical cover assembly with thehelp of a seal. The conical cover has an air valve and a pet cock for bleeding of the water. A transparent cylindrical stand pipewhich is graduated in air content is fixed to be conical cover assembly. Pressure is applied to the specimen with the help ofa pressure bulb and the pressure is recorded on the pressure gauge which in mounted on the stand pipe. The whole assembly ismounted on a flat base. The instrument is supplied complete with one each following accessories. Calibration cylinder with spring, Trowel, Tamping Rod, Straight edge, Rubber mallet and measure.

 

Air Entrainment Meter ( AEE-516 )

Same as above but 0.007 cubic meter capacity for maximum size of aggregate 38mm.

 

Air Entrainment Meter

Same as above but 0.01 cubic meter capacity for maximum size of aggregate 75mm.

 

Air Entrainment Meter

Same as above but 0.1 cubic meter capacity for maximum size of aggregate 150mm. Space: Rubber pressure bulb with tube &Gasket for Vessel.

 

Compaction Factor Apparatus

The apparatus is used for determining the work ability of fresh concrete, provided the maximum size of the aggregate does not exceed 38mm. The test is particularly useful for concrete mixes of very low work ability where true slump values are not reliable.

Specifications: It consists of two rigid conical hoppers and a cylinder mounted on a rigid metal frame.The lower openings of the hoppers are fitted with hinged trap- doors having quick release catches. A circular meter plate is provided to cover the top of the cylinder. Supplied complete with one plaster's trowel and one tamping rod, 16mm dia. x 600mm long, one end rounded.

 

Flow Table

This is used for determining the work ability of building limes.
Specifications: The Flow table consists of a 30cm. dia. ground and polished steel plate with three inscribed annular circles.7, 11 and 19cm. dia. The table top is arranged for a free fall of 12.5mm by a cam action. Supplied complete with one brasconical mould, 65mm I.D. at base and 40mm I.D. at top, height of the mould 90mm.

 

Flow Table

It is used for determining the flow of cement concrete.
Specifications: Consists of a steel table top 76.2cm (30 inch. Dia.), finely machined. The integral cast ribs are designed for supportand strength. The stand is fabricated out of cast iron and is of study construction. Hole for mounting in foundations are drilled in thebase plate. The ground and hardened steel cam is designed to lift and drop the table by 12.5mm. The hand wheel makes it simple tooperate the table. Supplied with one conical mould with handles. 12cm. height having 17cm. top inernal diameter and 25cm. I.D. at the base complete with a tamping rod 16mm. dia x 600mm long one end rounded.

 

Flow Table (Motorized)