Penetration resistance tests on solid offers a method for deciding relative qualities of cement in a similar structure or relative quality of various structures. In view of nature of types of gear, it cannot and ought not be relied upon to yield total estimations of quality. ASTM C-803 gives this standard test strategy titled “Penetration […]
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Objective: To ascertain the percentage of water absorption of bricks Apparatus A delicate balance which is capable of weighing within 0.1% of the weight of the sample and aired oven. Specimen Three numbers of whole bricks from specimen gathered for testing has to be undertaken. Process Put out the sample for drying in a well- […]
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Objective: Determination of viscosity of bitumen using tar viscometer Apparatus Tar viscometer Cup Valve Receiver Thermometer etc. Theory In simple words, viscosity is the opposite of fluidity. The extent of fluidity at the utilization temperature significantly impacts the capacity of bituminous material to extend, infiltrate into voids and additionally coat the total and therefore move […]
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Objective: Assessment of specific gravity of a specified sample of bitumen Apparatus Pycnometer and balance Theory Specific gravity of bituminous material is known as the proportion of mass of specified capacity of substance to the equivalent volume of water, temperature of both of them approximating 27 degree Celsius. Procedure The specific gravity bottle is first […]
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Objective (i) To compute the ductility of a specific specimen of bitumen (ii) To assess the suitability of bitumen for its application in road construction. Apparatus The apparatus as per IS: 1208-1978 comprises of Briquette mould: It is created out of brass. Circular holes are made at ends known as clips to grasp the stationary […]
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Objective: For assessment of the specific gravity of specified specimen of fine and coarse aggregates. Specific gravity of coarse aggregate Apparatus An equilibrium or scale of volume of minimum 3 kg, decipherable and precise to 0.5 g and it has to be of such shape and kind that it allows the basket holding the specimen […]
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Objective: To assess the soundness of cement by Le-chatelier Method Apparatus Le chatelier mould The mould comprises of a very minute split cylinder made out of spring brass or some other compatible metal of 0.5mm density creating of a mould 30mm interior diameter and 30mm height. On both sides of the split, they are joined […]
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Objective: For assessment of toughness property of aggregates for the concrete construction Tools and Equipment Impact Testing Machine Description of Machine Pendulum impact Testing Machine basically comprises of the strong frame structure, the sample sustenance along with the measuring and computing dial. The pendulum shaft is connected in the anti-friction bearings. After that, the pendulum […]
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Objective: To assess the properties and behavior of the sand grains under different percentage of moisture content Apparatus 250 ml measuring cylinder, a weighing balance etc. Procedure (i) First of all take 500gm (W1) of the aggregate. (ii) Put the specimen in an oven in a horizontal tray at a very temperature of 100°C-110° C […]
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Objective: For the assessment of the aggregate crushing value of coarse aggregate. The aggregate crushing value provides a subjective measure of the resistance of the aggregate crushing in the pressure of the progressively smeared compressive load. When the aggregate crushing value is 30 or greater the outcome can be irregular and in those kind of […]
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