OBJECTIVE To determine the rate of spread of binder (cutback bitumen). APPARATUS Balance of capacity 2kg and sensitivity 0.1gm. G.I. Trays of size 30 x 30 x 2.5cm 2 Nos. Kerosene or benzene. PROCEDURE Record the base area (A) and the initial weight (W) of each fray. Place the trays on the spraying I tacking […]
DETERMINATION OF RATE OF SPREAD OF BINDER (EMULSION) Read More »
STANDARD IS:516—1959 OBJECTIVE To determine the compressive strength of cement concrete cubes APPARATUS Batch mixer Vibrating table Cube moulds Tamping road 16mm diameter, 6m long and with bullet point at the lower end Standard compression testing machine Steel scale with an accuracy of 1mm Balance of capacity I Okgs and sensitivity 1 gram PROCEDURE Test
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STANDARD IS: 1199 -1959 (5.2). DEFINITION Compaction factor is defined as the ratio of the weight of partially compacted concrete to the weight of fully compacted concrete. APPARATUS Compaction factor apparatus Platform scale 100 kg capacity and sensitivity 10 grams Hand Scoop Vibrating Table PROCEDURE Determine the initial weight (W1) of the cylinder. Place the
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STANDARD IS:1199–1959. OBJECTIVE To determine the workability of concrete APPARATUS Mould for the test shall be in the form of the frustum of a cone having the following internal dimensions bottom diameter-20 cms, top diameter-l0 cms, height-30 cms. The mould shall be made of metal (Brass or Aluminum shall not be used) of at least
STANDARD IS: 1211-1978 OBJECTIVE To determine the water content of asphalt bitumen and fluxed nature asphalt, Crude coal tar, Road tar, Cut back bitumen, Digboi type cutback bitumen and creosote and anthracene oil. APPARATUS Flask of 500ml capacity made of heat resistant glass well annealed and as free as possible from striac and similar defects.
DETERMINATION OF WATER CONTENT (DEAN AND STARK METHOD) Read More »
STANDARD IS:1209—1978(4) DEFINITION Flash Point The flashpoint of a material is the lowest temperature at which the application of test flame causes the vapours from the material momentarily catch fife in the form of a flash under specified conditions of the test, APPARATUS Pensky Martens Closed Tester consisting of a cup, lid, stirring device cover
DETERMINATION OF FLASH POINT FOR CUT BACK BITUMEN Read More »
STANDARD IS: 1209—1978 (3). DEFINITION Flash Point The flashpoint of a material is the lowest temperature at which the application of test flame causes the vapors from the material momentarily catch fire in the form of a flash under specified conditions of the test. APPARATUS Pensky Martens Closed Tester consisting of cup, lid, stirring device,
5.6 DETERMINATION OF FLASH POINT FOR BITUMEN Read More »
STANDARD IS: 1206 (Part 3)1978. DEFINITION Kinematic viscosity is defined as the quotient of the absolute or dynamic viscosity divided by the density of the liquid both at the same temperature. APPARATUS B S U — Tube Modified Reverse Flow Viscometer The viscometer shall be made of clear borosilicate or other heat resistant glass free
DETERMINATION OF VISCOSITY (KINEMATIC VISCOSITY) Read More »
STANDARD IS: 2720 (Part 4) 1985. OBJECTIVE To determine the grain size analysis of soils by sedimentation method. APPARATUS Glass measuring cylinders 2 nos of 1000 ml capacity with ground glass or rubber stoppers about 7cms diameter and 33 cms high marked at l 000 ml volume. Thermometer capable of reading temperature up to 90°C
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