Universal Scientific & Testing Equipment Co.

We offer aggregate impact value test apparatus that work with precision in their desired application. These equipment comprise a circular base with two vertical guides. The hammer of weight 13.75 ± 0.25kg can be lifted to fall freely down the vertical guides. The height of fall can be set through 380 ± 5mm. The hammer is offered with a locking arrangement. The hammer falls freely to the base and can be removed.

The aggregate impact value test apparatus is supplied with metal measure 75mm diameter x 50mm high and tamping rod 230mm long x 10mm diameter with/without blow counter.

We manufacture and supply premium quality air entrainment meter that is used for determining the air content for freshly mixed concrete by the pressure technique.

Features :

• The equipment comprises of a pressure tight flanged cylindrical measuring bowl of 0.005 cubic meter capacity for maximum size of aggregate 38 mm
• The bowl is connected with a removable flanged conical cover assembly with the help of a seal
• Conical cover is provided with an air valve and a pet cock for bleeding off the water
• A transparent cylindrical stand pipe that is graduated in air content is connected to the conical cover assembly
• Pressure is applied to the specimen with the help of a pressure bulb and the pressure is measured on the pressure gauze that is mounted on the stand pipe
• The complete assembly is mounted on a flat base

We offer the instrument complete with one following accessories :

• Calibration cylinder with spring clamp
• Trowel
• Tamping Rod, Straight edge
• Rubber Mallet and Measure

We manufacture and supply precision engineered CBR test apparatus that is known for its flawless performance, ease of handling and long service life. The CBR test apparatus is used worldwide for testing soils and mix materials. The main features of our CBR apparatus include :

• It is easy to operate
• Available in different capacities
• Good load speed

We are engaged in manufacturing and supply of quality laboratory cement autoclaves that are suitable for conducting accelerated soundness tests on cements or the autoclave expansion test. These tests require constant steam pressure with the correspondent constant pressure.

Features :

• The cement autoclave comprises of a stainless steel cylinder with a welded heat insulated voer, which is mounted on a sturdy supporting frame, confined in a heat insulated metal housing
• The attached control unit holds in a sensitive pressure regulator, pressure gauze, power switches and pilot lights that are used to control the electric heating units
• We offer laboratory cement autoclave complete with test bar holder, special rack to hold specimens above water level in the autoclave and in a vertical position to expose them in the same manner

Technical Specifications :

• Inside chamber dimensions are - 10.5cm diameter x 40.5cm height
  
• The device is suitable for operation on 230V, 50Hz, Single Phase A.C. supply

The centrifuge extractors manufactured by us are extensively used for the determination of bitumen percentage in bituminous mixtures. The centrifuge extractor is a safe, portable, corrosion-resistant model, which can be used both in the field and the laboratory.

Features :

• It consists of removable cast aluminum rotor bowl mounted on a vertical shaft
• The bowl assembly is enclosed in a housing mounted on a cast aluminum body
• The gears operate in oil bath with splash lubrication

We manufacture and supply precision engineered compression testing machines that are known for their superior performance, ease of handling and long service life. The machine is used to test the strength of concrete crushing the specimen in form of cylinders or cubes.

We offer compression testing machines in a variety of specifications that range from 10 tonnes to 200 tonnes in different models. Compression testing machines can also be used for bricks, hallow or solid concrete blocks using suitable capacity machine.

The unit comprises of load frame with suitable platens and a pumping unit with pressure gauze that can be either hand operated or electrically cum hand operated.

We offer heavy duty electric core drill machines that can be used for any core drilling operation. Our core drill machines are constructed of heavy structural steel, and the frame is welded to insure maximum stability and rigidity. Complete water and hydraulic systems are built into the core drill machine and need only be connected to the source.

Features :

• Each core drilling machine is self-contained with motors and controls wired in ready to operate from customer’s fused disconnect
• The core drilling operations may be controlled as desired by the operator
• All electrical and hydraulics are located for operators convenience with built in controls
• Variable pressure assures fast, economical and clean operation

We manufacture and supply precision engineered cube moulds that are available in various sizes and are made as per the Indian and British standards. For the metric size cube moulds, the faces are machined flat to ± 0.02 mm accuracy and are finished to within 0.02mm. For the inch size cube moulds, the faces are machined flat to ± 0.01 inches and finished to within 0.01mm. All the cube moulds are offered complete with base plate.

Available sizes :

• 5x5x5 cm
• 10x10x10 cm
• 15x15x15 cm
• 20x20x20 cm
• 30x30x30 cm

We design and supply precision engineered ductility testing machines that is used to carry out the ductility tests on bituminous material. The ductility testing machines comprises of a water bath with a heater and a circulating pump to maintain water temperature uniform. One half of the briquette molds is fixed on a fixed plate in the water bath and the other half of the briquette mold is attached to a carrier that slides over a rotating threaded shaft with a clutch.

Ductility can be defined as the distance in cms to which a standard briquette of bitumen can be stretched prior to the breaking of threads. The briquette can be stretched at a rate of 50 mm/minute ± 25mm per mount at a temperature of 25 ºC ± 0.50ºC.

Marshall stability test is applicable to hot mix designs using bitumen and aggregates up to a maximum size of 25mm. In this procedure, the resistance to plastic deformation of cylindrical specimen of bituminous mixture is calculated when the same is loaded at periphery at 5 cm per min.
The two prime features of the Marshall method of designing mixes are :

• Density – Voids Analysis
• Stability – Flow Tests

This test method is used in the design and evaluation of bituminous paving mixes. The test method is widely used in routine test programmers for paving works.

The Marshall stability test apparatus comprises of :

• A loading unit motorized, capacity 5000kgf with two telescopic pillars and an adjustable cross head. The Limit switches are attached inside to regulate the upward or downward movement of the pillars. On off reversing switch and indicator lamps are on the front side while a hand wheel to manually displace the pillars is on the right side. The load frame has fixed speed of 5.80cm per minute, which is operated on 230 volts AC
• 3 Specimen mold 10.16cm I.D. x 7.6cm high with base plate and extension collar
• One Kit for specimen extraction that consists of one each load transfer bar, steel ball and specimen extracting plate
• One number compaction pedal with specimen mold holder
• 1 Breaking head assembly with provision to fix flow meter. The Marshal Stability of mix can be defined as a maximum load carried by a compacted specimen at a standard test temperature of 60ºC

We offer speedy / rapid moisture meters that are used for determining the moisture content of materials in powder form i.e. soil, sand, coal, pottery slip, cement, etc. These are used in various industries.

Our speedy / rapid moisture meters consists of :

• Pressure vessel with clamp for sealing cap
• Rubber sealing gasket
• Pressure gauze calibrated in percentage moisture content
• A counter poised balance for weighing sample
• A scoop for measuring carbide reagent
• A bottle for thorough mixing fitted in a wooden carrying case with handle

We offer standard penetrometer that work with precision in their specified application. The standard penetrometer is used to determine the grade of bitumen. The penetration tests determine consistency of needle having a standard weight will penetrate vertically in a duration of 5 seconds at a temperature of 250^oC.

Features :

• Standard penetrometer comprises of a vertical pillar mounted on a base designed with the leveling screws
• The head, together with dial plunger rod and cone slides on a pillar that can be clamped at any desired height
• A rack and pinion and pointer assemble ensure fine adjustment of needle or canoe tip to sample
• The equipment has a clutch mechanism that makes makes the reading of penetration and subsequent resetting a simple and accurate operation
• The dial is graduated in 400 1/10 and the millimeter subdivisions are the needle pointer against figures that ensure easy reading