KEY: 1. MECHANICAL SHAKER 2. L.A. ABRASION TESTING MACHINE 3. COMPRESSION TESTING MACHINE 4. UNIVERSAL TESTING MACHINE 5. TENSILE TESTING MACHINE
A. MECHANICAL SHAKER
This machine is usually used during a gradation test
The said shaker has the capacity of approximately 10 to 20 kilograms.
Mechanical Shakers can be used for design qualifications, end product reliability and fatigue testing, environmental stress screening (ESS), as part of a production process such as quality assurance, or anything else that requires vibration.
B. L.A. ABRASION TESTING MACHINE
The machine is used for testing crushed slag, crushed and uncrushed gravel for resistance to abrasion. the aim of the test is to find the percentage wear due to the relative rubbing action between the aggregates and steel balls as abrasive charge.
The L.A. ABRASION TESTING MACHINE available at the lab has the capacity of 34 revolutions per minute.
C. UNIVERSAL TESTING MACHINE
A universal testing machine is used to test the tensile stress and compressive strength of materials.
It is named after the fact that it can perform many standard tensile and compression tests on materials, components, and structures.
The range of the UTM available at the laboratory is 8 to 36 mm and has the capacity of 5 to 100 kN.
D. TENSILE TESTING MACHINE
The tensile testing machine is a specialized machine designed for tensile testing This measures how strong it is (tensile strength) how stretchy it is (elongation), and how stiff it is (tensile modulus).
The range of the TTM available at the laboratory is 10-12 mm and has the capacity of about 50 kN.
E. COMPRESSION TESTING MACHINE
The machine is designed for compressive strength testing and for bending, transverse and shear loads.
Hardness test on metals can also be conducted.
Compression Test: This is where you