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Holiday test or a Continuity test is one of the non destructive test method applied on protective coatings to detect unacceptable discontinuities such as pinholes and voids. The holiday detection procedure involves checking of an electric circuit to see if current flows to complete the electrical circuit.
INR 0 INR 0 5bafd3e6ad648f000153dd80 False 2018-09-29T19:35:02
The adhesion of a coating or several coated sample of any paint product is measured by assessing the minimum tensile stress needed to detach or rupture the coating perpendicular to the substrate. Unlike the other methods, this method maximizes the tensile stress, therefore results may not be comparable to the others. The test is done by securing loading fixtures (dollies) perpendicular to the surface of a coating with an adhesive. Then the testing apparatus is attached to the loading fixture and is then aligned to apply tension perpendicular to the test surface. The force that is applied gradually increases and is monitored until a plug of coating is detached, or a previously specified value is reached.
INR 0 INR 0 5b918810ccd857051d50fcb4 False 2018-09-06T20:03:28
The specific Gravity of an aggregates is considered to be a measure a strength or quality of the material. The Specific gravity test helps in the identification of stone. Water absorption gives an idea of strength of aggregates. Aggregates having more water absorption are more porous in nature and generally unsuitable unless they are found to be acceptable based on physical properties of material.
Specific Gravity & Water Absorption of Aggregate
INR 0 INR 0 5b6b39223ca1150526aa9db4 True 2017-12-02T08:00:11
The Sieve Analysis of Aggregates, commonly known as the Gradation Test, It is a basic essential test for all Aggregate. The sieve analysis determines the gradation (the distribution of aggregate particles, by size, within a given sample) in order to determine compliance with design, production control requirements, and verification specifications. The gradation data may be used to calculate relationships between various aggregate or aggregate blends, to check compliance with such blends. Used in conjunction with other tests, the sieve analysis is a very good quality control and quality acceptance tool.
Sieve Analysis of Aggregates
INR 0 INR 0 5b6b39223ca1150526aa9da0 False 2017-12-02T07:33:21
An Ultrasonic Pulse Velocity (UPV) test is an in-situ, Non-Destructive test to check the Quality of Concrete and Natural Rocks. In this test, the Strength and Quality of Concrete or Rock is assessed by measuring the velocity of an Ultrasonic Pulse passing through a concrete Structure or Natural Rock formation. This test is conducted by passing a pulse of ultrasonic wave through concrete to be tested and measuring the time taken by pulse to get through the structure. Higher velocities indicate Good Quality and Continuity of the Material, while Slower Velocities may indicate concrete with many Cracks or Voids.
Ultrasonic Pulse Velocity Test of Concreate (UPV Test)
INR 0 INR 0 5b6b39223ca1150526aa9d8b True 2017-12-01T17:48:50
Rebound hammer test is done to find out the compressive strength of concrete by using rebound hammer as per IS: 13311 (Part 2). The underlying principle of the rebound hammer test is:The rebound of an elastic mass depends on the hardness of the surface against which its mass strikes. When the plunger of the rebound hammer is pressed against the surface of the concrete, the spring-controlled mass rebounds and the extent of such a rebound depends upon the surface hardness of the concrete. The surface hardness and therefore the rebound is taken to be related to the compressive strength of the concrete. The rebound value is read from a graduated scale and is designated as the rebound number or rebound index. The compressive strength can be read directly from the graph provided on the body of the hammer.
Rebound Hammer Test
INR 0 INR 0 5b6b39223ca1150526aa9d78 True 2017-12-01T18:04:04
The Bend Test is a simple and inexpensive Qualitative Test that can be used to evaluate both the ductility and soundness of a material. It is often used as a quality control test for butt-welded joints, having the advantage of simplicity of both test piece and equipment.Also a bending test is a method for measuring stiffness and yield properties of certain materials. Bending tests for ductility provide a simple way to evaluate the quality of materials by their ability to resist cracking or other surface irregularities during one continuous bend. In certain cases the bending test can determine tensile strength.Bending tests are common in Brittle materials and springs with linear failure behaviours like:• Structural Steel• Rainforest Steel• Weld Joint.• Concrete/stone• Wood/plastic• Glass/ceramics• Powder Metallurgy-processed metals and materials.This Test is under NABL Scope.
INR 0 INR 0 5b6b39223ca1150526aa9d63 True 2017-09-10T07:51:11
Tensile testing, also known as pull testing, is a standard test method where a sample is placed in grips and subjected to controlled tension until it fails.This provides valuable information about materials including Ultimate Tensile Strength, Yield Strength, % of Elongation and % of Reduction in Area. This information allows us to determine Young's Modulus and Poisson's Ratio.Metalab offers Tensile Testing for Metals, Weld Specimens, Plastic and Rubber Products. Wire and Reinforcement Steel, Tube, and Pipes. We have different type of Load Capacity of Tensile Test Machine. i.e. 0.1 kN, 1 kN, 20 kN, 100 kN, 200 kN, 600 kN, 1000 kN Capacity. Yield Stress (0.2%, 0.5% and 1%),Ultimate Tensile Stress,% of Elongation,% of Reduction Area,Stress vs Strain Curve,Load vs Displacement Curve,Stress vs Displacement curve.
Tensile Test of Metals, Plastic, Rubber and Polymers.
INR 0 INR 0 5b6b39223ca1150526aa9d49 True 2017-09-10T07:14:00
The Atterberg limits are a basic measure of the critical water contents of a fine-grained soil: its shrinkage limit, plastic limit, and liquid limit. As a dry, clayey soil takes on increasing amounts of water, it undergoes distinct changes in behavior and consistency.
Atterberg`s Limits-Soil Analysis
INR 0 INR 0 5b6b39223ca1150526aa9d24 True 2017-07-14T07:50:00