lab-test

DETERMINATION OF SPECIFIC GRAVITY & WATER ABSORPTION OF COARSE AGGREGATE

DETERMINATION OF SPECIFIC GRAVITY & WATER ABSORPTION OF COARSE AGGREGATE (IS: 2386-Part III-1963):- Introduction: Specific gravity is a measure of a material’s density (mass per unit volume) as compared to the density of water at 23°C. Therefore, by definition, water at a temperature of 23°C has aspecific gravity of 1. Otherwise , it may be …

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Standard Proctor compaction test of soil (light compaction) (As per IS-2720-Part-VII-1980)

Objective Determination of water content and dry density relation of soil using light compaction. Apparatus • Cylindrical mould of 100mm diameter & accessories [volume = 1000 c.c.] • Rammer [2.6 kg] • Balance [(a) 10kg capacity & 1g accuracy (b) 200gm capacity & 0.01gm accuracy for moisture content calculation] • Sieves [19mm & 4.75mm IS …

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SOME SIMPLE LABORATORY TESTS OF BRICKS FOR QUALITY CHECK FOR CONSTRUCTION USES

 (a) Water absorption test (as per IS: 3495, Part-2, 1992): Water absorption value of bricks largely influences the bond between brick and mortar. If water absorption in bricks is more and bricks are not soaked before the masonry work, the water from freshly laid mortar is likely to be absorbed by bricks. This results into …

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DETERMINATION OF FIELD DENSITY OF SOIL BY SAND REPLACEMENT METHOD

 DETERMINATION OF FIELD DENSITY OF SOIL BY SAND REPLACEMENT METHOD (As per IS-2720-Part-28) Calibrating can Sand pouring cylinder Tray Sand Replacement test apparatus A pit of specified dimensions is excavated in the ground. The mass of the excavated soil is determined. The volume of the hole is determined by filling it with clean, uniform sand …

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BITUMINOUS MIX DESIGN BY MARSHALL METHOD (As per ASTM D 1559 – 62 T )

BITUMINOUS MIX DESIGN BY MARSHALL METHOD (As per ASTM D 1559 – 62 T ) Introduction One of the method of designing of bituminous mix is Marshall Method. Objective To determine the stability and flow properties of bituminous mixes and to design the mix at optimum bitumen content. Apparatus used i) I.S sieve ii) Weighing …

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DISCUSSION ON GRAIN SIZE ANALYSIS OF SOIL

 DISCUSSION ON GRAIN SIZE ANALYSIS OF SOIL The commonly used properties for the classification are the grain size distribution, liquid limit and plasticity index. Those properties have also been used in empirical design methods for flexible pavements and in deciding the suitability of sub grade soil. The results of the test are of great value …

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Determination of Absolute viscosity of bitumen by Cannon – Manning vacuum capillary viscometer

DETERMINATION OF ABSOLUTE VISCOSITY Importance In all bituminous works bitumen is required to be heated up to a definite temperature, so that the specific grade of bitumen may reach at its proper viscosity label, so that it can be mixed correctly with the aggregates to get a homogenous mix. Definition of Absolute or Dynamic Viscosity …

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