Job # 4: To perform LOS ANGELES Abrasion test on aggregate Code description: ASTM C 131/C 131 M-14 and AASHTO T-96 Scope & Significance: This test method covers a procedure for testing of coarse aggregates for resistance to degradation using the Los Angeles Abrasion testing machine. Due to the movement of traffic, the road stones…
Author: mianusman.iftikhar@hotmail.com
Determination of Relative Density (Specific Gravity) And Water Absorption of Different Aggregate
Job # 3: Determination of Relative Density (Specific Gravity) And Water Absorption of Different Aggregate Code description: (ASTM C-127-88) Scope & Significance: This test method covers the determination of specific gravity and absorption of coarse aggregate. The specific gravity may be expressed as bulk specific gravity (OD), bulk specific gravity (SSD) (saturated-surface-dry), or apparent specific…
Determination of angularity number of the given aggregate sample
Job # 2: Determination of angularity number of the given aggregate sample Scope & Significance: This test is also carried out for determining shape of the aggregates. This test is performed to determine the angularity number i.e. the absence of roundness or the degree of angularity of the aggregate specimen The degree of packing of…
Determination of Flakiness and Elongation Index of given aggregate sample
Job # 1: Determination of Flakiness and Elongation Index of given aggregate sample Scope & Significance: This test is used to determine the particle shape of the aggregate and each particle shape being preferred under specific conditions. The significance of flakiness & elongation index is as follows; The degree of packing of the particles of…
Study of small instruments
Job 2: Study of small instruments Inside caliper: The inside calipers are used to measure the internal size/diameter of an object. It consists of a pair of adjustable pivoted legs. Outside caliper: Outside calipers are used to measure the external size/diameter of an object. Outside caliper: (with scale) It is also used to measure…
To perform direct shear test on a plane steel bar and punching shear test on steel plate
Job 3 To perform direct shear test on a plane steel bar and punching shear test on steel plate Objective: To determine the shear strength of steel samples Apparatus: 10 ton Buckton UTM Shear jigs Vernier calipers Steel bar Steel plate Related theory: Shear force (V) : A force which tends to slide one part…
To carry out compression test on wooden cubes when load is applied, Parallel to grains, Perpendicular to grains
Job # 4 To carry out compression test on wooden cubes when load is applied Parallel to grains Perpendicular to the grains. Objective: To determine compressive strength of wood To determine modulus of elasticity € and modulus of stiffness (K) To observe an-isotropic behavior of wood. Apparatus: Wooden samples Vernier calipers Deflection gauge Shimadzu 500kN…
To perform tension test on hot rolled deformed steel bar
Job # 5 To perform tension test on hot rolled deformed steel bar Objective: To determine different mechanical properties of steel To study the stress strain behavior of mild steel To check the adequacy of specimen according to ASTM standard Apparatus: 500 kN Shimadzu UTM Extensometer Spring divider Vernier calipers Weighing balance Steel tape Hot…
To perform impact test on different steel samples
Job # 6 To perform impact test on different steel samples Purpose: To determine the modulus of toughness of steel in tension and in bending. Apparatus: Charpy impact testing machine Steel samples, circular rod for tension test and specimen with square cross section for bending test Related theory: Toughness: The ability of material to absorb…
To perform bending test on a wooden beam
Job # 7 To perform bending test on a wooden beam Objective: To study the bending behavior of a wooden beam To determine the modulus of rupture and modulus of elasticity of beam Apparatus: 10 ton Buckton UTM Wooden beam 3 deflection gages Measuring tape Related theory: Bending moment: The algebraic sum of moment of…