AZA 0848 PLASTIC LIMIT SET

IS 2720 (PART IV) AND BS 1377:2. Specification: This is for the determination of the sub sieve particle distribution in a soil sample by mechanical analysis. An analysis of this kind expresses quantity the proportions by weight of the various sizes of particles present in the soil. It is recommended as a standard procedure to use dispersion agent to avoid flocculation. The apparatus consists of a sliding panel which moves up and down by means of a screw allowing Anderson pipette fixed to it to be raised or lowered vertically. A sedimentation tube is held by a laboratory clamp provided on the stand below the pipette. The depth of immersion is measured by a scale graduated in mm at the side of the sliding panel. Supplied complete with Anderson pipette 10ml. At the side capacity made from glass, and a sedimentation tube also of glass of 500ml capacity and 50nos. Test form pads. Accessories & Spares: (on extra cost) 1) Sedimentation Pipette (Anderson pipette) 25ml. 2) Sedimentation tube 100ml 3) Sedimentation pipette 10ml 4) Sedimentation tube 500ml 5) Test forms pad of 50

Conventionally particle size distribution analysis is carried out using pipette and hydrometer methods. Whereas in hydrometer method it is possible to determine particle sizes in the range 75microns, the method involves computation and it is time consuming. The pipette method can be used for determining only the percentage of specific sizes less than 0.02, 0.006 and 0.002mm as a percentage of total soil sample. The plummet balance method to determine sub sieve particle size for the entire range is very rapid and only manipulation of height of the balance, so that plummet sinks to the right depth is required. The percentage of soil in suspension is directly indicated by a pointer over a graduated scale. A vertical rod is mounted on a sturdy base having leveling screws. A pointer with steel pivots turns is jewel bearing an moves over a graduated scale. Scale graduations are market 0-100% x 2% To the other end of the pointer a plummet is hanged. Rack and pinion arrangement is provided on the vertical rod for adjusting the height. Supplied with a chart showing relationship between “K” and temperature of suspension of soils of varying specific gravity from 2.4 to 2.8 to help in solving stroke's equation. Supplied complete with one Perspex plummet one measuring jar and one rider weight for zero adjustment and rider weight for adjusting the pointer to 100%.

BS 1377:4 Automatic Soil Compactor BS EN Rammer the automatic soil compactors is designed to provide a fully automatic uniform compaction of standard / modified and CBR specimens assuring conformity with the reference standard. Compactor is equipped with programmable digital counter which allows machine to stop at the preset numbers of blows. The height and weight of the rammer is adjustable to suit test requirements. The drop weight is adjustable to 300 mm drop height and is also adjustable to 450 mm drop height. The rammer is circular faced with a 50 mm diameter and is adjustable to 2.5 kg. or 4.5 kg. An automatic blow pattern ensures effective compaction for each layer of soil and the rammer travels across the mould. The table rotates the mould in equal steps and the number of blows per layer can be set at the beginning of the test by the digital counter. User defined blow number and in-out distribution is also available. A standard proctor / CBR switch, emergency stop and start push buttons are located beside the blow counter. 220 V, 50-60 Hz, 1 Ph

The unit consists of a pressure vessel with clamp for sealing cap, capacity is 6 gms. Rubber sealing gasket, pressure gauge calibrated in percentage moisture content on the wet weight basis, a counter poised balance for weighing sample, a scoop for measuring carbide reagent, a bottle of reagent, one cleaning brush and a set of 4 steel balls for thorough mixing . Complete in highly polished wooden carrying case with handle. AZA 0874A : Pressure gauge calibrated 0-50% x 0.50% AZA 0874B : Pressure gauge calibrated 0-25% x 0.25% Spares: Carbide reagent, in bottles of 500 gms. each available on extra cost