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Our product range comtains a wide range of Le Chatelier Mould, Cutting Coller & Piston & Tripod., Curing Tank, Digital Abrasion Testing Machine and Compaction Factor Apparatus
Cement of good quality does not contain the impurities like free lime, magnesia and sulphates, so this should be checked before use. When it contains the impurities named above, it can expand after reacted with the water, which will result in the unwanted results like, cracking, unwanted expansion of the dimensions and lower strength. Le-Ch-atelier's Apparatus is the standard apparatus prescribed as per IS:5514 -1969 to check the presence of the impurities in cement. Cement is said to be sound when the expansion is below 10 mm.
Compaction Factor Apparatus As per IS1199:1999 Compaction factor test apparatus consists of, 1) Two conical hoppers and a bottom cylinder which is arranged as shown in below fig. 2) Steel rod of 1.6 cm Diameter with a length of 61cm is used to tamp the concrete 3) Weight balance is used to weight the concrete. Compaction Factor Test Compaction Factor Test Procedure The sample of concrete to be tested shall be placed gently in the upper hopper, using the hand scoop. The hopper shall be filled level with its brim and the trap-door shall be opened so that the concrete falls into the lower hopper. Certain mixes have a tendency to stick in one or both of the hoppers. If this occurs, the concrete may be helped by pushing the rod gently into the concrete from the top. Immediately after the concrete has come to rest, the cylinder shall be uncovered, the trap-door of the lower hopper opened, and the concrete allowed falling into the cylinder. The excess of concrete remaining above the level of the top of the cylinder shall then be cut off by holding a trowel. Weight the cylinder with concrete to the nearest 10 g. This weight is known as the weight of partially compacted concrete (W1). Empty the cylinder and then refill it with the same concrete mix in layers approximately 5 cm deep, each layer being heavily rammed to obtain full compaction. Level the top surface. Weigh the cylinder with fully compacted. This weight is known as the weight of fully compacted concrete (W2). Find the weight of the empty cylinder (W).
S.N Scientific Solution Soil Pocket Penetrometer also called a hand penetrometer is constructed of stainless steel. It is a simple, lightweight, handheld device made for instant estimates of the unconfined compressive strength of cohesive soils. Although it does not replace laboratory Unconfined Compressive Strength Test Systems for the determination of unconfined shear strengths, the Pocket Penetrometer is a valuable tool for providing approximate values quickly. It is specified for soil strength estimates when evaluating the stability and safety of trench excavations. Such evaluations can determine the need to modify slope angles or to reinforce excavations with shoring. The penetrometer can be purchased in the Soil Classification Set which includes various tools and instruments for field evaluation and classification of soil characteristics. The 0.25in (6.4mm) diameter penetration piston is pushed into the soil surface to a groove machined on the piston at 0.25in (6.4mm) depth. Penetration resistance from the calibrated spring is registered on an integrated scale engraved on the penetrometer barrel. Scale units are shown in tons per square foot (tsf) or kg/cm², and a sliding indicator ring retains the reading until reset. Stainless steel heavy-duty construction of the pocket penetrometer ensures a long, corrosion-free service life. The calibrated steel spring is plated for rust resistance. An optional adapter foot attachment increases the piston diameter from 0.25in (6.4mm) to 1in (25mm), increasing the surface area 16 times for testing very soft soils.
The apparatus for the standard aggregate crushing test as per IS: 2386-1963 (Part IV) consist of the following: The test mold-a 15.2 cm diameter open-ended steel cylinder with square base plate; plunger having a piston of diameter 15 cm, a rod could be inserted for lifting or placing the plunger in the cylinder with a provided hole across the stem of the plunger. A straight metal tamping rod of circular cross-section 16mm in diameter and 45 to 60 cm long, rounded at one end. A balance of capacity 5 kg, readable and accurate up to 1 gm. IS sieve of sizes 12.5mm, 10mm, 2.36mm. A compression testing machine capable of applying load up to 40 tonnes at a uniform rate of 4 tonnes per minute. A cylinder measure having an internal diameter of 11.5 cm and height of 18 cm.