MANUFACTURE , SUPPLIER , IMPORTERS AND EXPORTERS OF HYDROLOGICAL, METEOROLOGICAL, SOIL & CONCRETE, DAM TESTING INSTRUMENTS etc..

Material Testing , Bitumen , Asphalt , Aggregate Instruments

Marshall Stability Test Apparatus

originally developed by Bruce Marshall, a highway engineer in U.S.A. later on standardised by ASTM. Generally the test is applicable to hot mix design using bitumen and aggregate upto a maximum size of 25 mm.

In this method , the resistance to plastic deformation of cylindrical specimen of bitumenous mixture is measured when the same is loaded at periphery at 5 cm per min. This test procedure is used in designed and evaluating bitumenous paving mixer. The test procedure is extensively used in routine test programmes for paving jobs. There are two major features of the Marshall method of desiging mixes namely.

(1). Density - voids analysis (2). Stability - Flow tests.

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Core Cutting/Core Drilling Machine

suitable to cut cores or cubes of concrete, Rocks, Stones, Tiles or Similar material.The machine is suitable for cutting core sample into proper size upto 150 mm diameter. The machine has sturdy base with pillar support and clamps in which rock and core sample are held in position with suitable grips.

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Asphalt & Concrete Floor Saw

.drive by dissel or Petrol/Kerosin Engine, Dimaond wheel of 300 mmm dia., suitable for a cut of depth upto 110 mm is suplied with standard outfit. the trolley on which the engine is fitted also has a water tank which supplies a stream of water to keep the cutting blade cool during operation.Adjustable to control depth of cut is also provided. A saftey Guard is provied over the diamond wheel. Diamond wheels upto 600 mm dia., can be supplied at extra cost.

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Length Gauge

for determination of the elongation index of aggregates.

Consists of hard wood base with vertically mounted metal studs as specified in the IS 2386.

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Cylindrical Measures

deternmine bulk density or unit weight of aggregates.

Calibrated cylinderical measure of sheet iron with handels. Consists of 3 measures one each 3 liters capacity, 15 liter capacity and 30 liters capacity. Complete with one tamping rod , round , 16 mm dia and 600 mmm long, one end rounded.

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Density Basket

for density test on aggregates as per procedure laid down.

Made of brass with stainless steel wire mesh 6.3 mm size ruggedly constructed, Approximately 20 cm dia x 20 cm high. Complete with handle.

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Riffle Sample Divider

used for sampling aggregate, ores, refractory materials, pigments, powdered coal,soap , cement etc.

It consists of sheet metal box mounted on legs and fitted with a series of chutes of equal width which discharge the meterial alternatively in opposite directions into seperate pans. The chutes of the riffle are steep are steep enough to allow rapid flowing of the material.

The instrument has 14 Nos chutes of 13 mm width and is complete with two receivers.

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Aggregate Cruching Value Apparatus

for measuring of resistance of aggregate to crushing.

 

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Aggregate Impact Tester

for determining the aggregate impact value.

Specification:- The instrument consists of a circular base with two vertical guides.The Hammer of weight 13.75 +/- 0.25 kg can be raised to fall freely down the vertical guides. The height of fall can be adjustable through 380 +/- 5 mm. The hammer is privided with a locking arrangment. the hammer falls freely on the aggregattes in the cylindrical cup by trigger action.

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Specific Gravity and Water Absorption of Aggregates

is used for specific gravity, aparant specific gravity and water absorption of aggregates.

The outfit comprises of -(1). Semi-self indicating balance. (2). Density Basket. (3). Air tight containerof capacity similar to that of density basket. (4). Water tight container to suspend dinsity basket. (5). G.I. Tray of area not less than 650 cm sq. (6). Absorbent cloth 75 cm x 45 cm.

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Deval Attrition Tester

for the determination of resistance of aggregates to wear by abrasion.

It consists of two hollow cylinders closed at one end and provided with tight fitting covers at the either end. These cylinders are mounted on shaft at angle of 30 degree with the axis of rotation of the shaft. The Shaft rotated at 30-33 r.p.m. through a reduction gear operated by a motor and is provided with a revolution counter.

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Dorry Abrasion Testing Machine

for aggregates for resistance to abrasion.

it consists of a disc rotating about a shaft connected to a reduction gear box coupled to a motor. The disc rotates at 28-30 r.p.m.

Under the rotating disc is a tray with an outlet to facilitate the removal of sand.Suitable for operation on 220 volts, 50 cycles, A.C. supply.

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Los Angles Abrasion Testing Machine

used for testing crused rock, crused slag, crused and uncrused gravel for resistance to abrasion.

Suitable for operation on 440 volts, 3 phase , 50 cycles , A.C. supply.

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