Compression Testing Machine offered comprise latest technology based computer control electro-hydraulic tensile compression testing machine. Some of its features include:
Casagrande method in mechanical form is known as Liquid Limit Method and has been is use for soil mechanics for a number of years. The Liquid Limit data of soils is useful to correlate mechanical properties of soil, such as compressibility and lower shear strength. Liquid limit is the water content at which soil passes from zero strength to and infinitesimal strength, hence the true value of liquid limit cannot be determined. For determination purpose liquid limit is that water content at which a part of soil, cut by grove of standard dimensions, will flow together for a distance of 1.25cm under an impact of 25 blows in a standard liquid limit apparatus.The soil at the water content has some strength which is about 0.17 N/cm/sq.cm.(17gms/sq.cm.) At this water content soil just passes form liquid stage to plastic statefitted with a motor geared down to give approximately 120 r.p.m suitable for operation on 230Volts, single phase, 50 cycles, A.C. supply.
Specifications: It consists of a brass cup held on an adjustable bracket. The cup can be adjusted for a fall of 1cm and cam be raised and dropped on a rubber base of standard hardness by cam action. Complete with one casagrande grooving tool, one ASTM Grooving tool and a heigh gauge block (Type A of IS 9259).
Spares: Casagrande grooving tool. ASTM Grooving tool, Height block, 1cm high.
As Per IS: 1199.
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 height of 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 is telescoped with funnel and guide sleeve. The swivel arm is also detachable from the vibrating Table. A graduated rod is fixed on a swivel alarm and at its end a plastic disc is screwed. The divisions of scale on the rod record the slump of the concrete in millimeters. Supplied complete with a sheet metal container with lifting handles which can easily be fixed to the vibrating Table. A slump cone open at both ends with lifting handles and a Tamping rod of size 16mm dia and 600 mm long, rounded at one end
As Per IS: 1199, ASTM C-124, AASHO T-120
Specifications: Electrically operated, to raise and drop the table top, approx. 15 times in 15 seconds. Suitable for operation on 230 Volts, 50 cycles, A.C. supply. 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.
Specifications: Drive by Diesel of Petrol/Kerosene Engine, Diamond wheel of 300mm dia., suitable for a cut of depth upto 100mm is supplied with standard outfit. The trolley on which the engine is fitted also has a water thank which supplies a stream os water to keep the cutting blade cool during the operation. Adjustment to control depth of cut is also provided. A safety Guard is provide over the diamond wheel. Diamond wheel. Diamond wheels upto 600mm dia, can be supplied at extra cost.
As Per IS: 310, 1203, 1448, IP: 60, 49, 50, ASTM: D5, D217, D637
Used to determine grade of bitumen. The penetration tests determine consistency of bitumen for the purpose of grading. Depth in units 1/10 of millimeter to which a standard needle having a standard weight 0 will penetrate vertically in a duration of five seconds at a temperature of 25 C determines penetration for gradation.
Specifications: It consists of a vertical pillar mounted on a base provided with leveling screws. The head, together with dial plunger rod and cone (or needle) slides on a pillar and can be clamped at any desired height. A rack and pinion and pointer assemble provides fine adjustment of needle or cone tip to sample. It incorporates a clutch mechanism which makes reading of penetration and subsequent resetting a simple and accurate operation. The dial is graduated in 400 1/10 and the millimeter subdivisions and the needle pointer against figures makes easy reading. Supplied with a bitumen penetration needle, ring weight one each 50gms and two sample containers.
Accessories: Penetration cone for empirical estimation of penetration of lubricating grease, petroleum jelly etc.