Objective: To determine the final setting time of cement. This test is required to understand the rate of gain of strength of cement with respect to time. Apparatus Vicat apparatus, needle for initial setting time, stop watch. Theory Final setting time is the time when the cement paste completely loses its plasticity. It is the […]
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This test is needed to assess the initial setting time frame of cement, and to comprehend the time-frame cement takes for initial setting among the blending and shifting and placing of concrete. Apparatus Vicat apparatus, needle for initial setting time, stop watch. Procedure We have to 400 gm of cement and put it in a steel […]
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Objective: To assert consistency of bituminous material To evaluate aptness of bitumen for its usage under varying climatic conditions and construction types Apparatus: Container: A metallic dish of cylindrical shape with a flat base and diameter of 55m and depth of 35mm. In case the penetration is of order 225 or more, dish of 70mm […]
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Objective: (i) To assess the impact value of the road aggregates; (ii) To evaluate their appropriateness in road construction on the foundation of impact value. Apparatus: The apparatus as per IS: 2386 (Part IV) – 1963 includes the following: (i) A testing machine with the weight range of 45 to 60 kg and consisting of […]
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Objective To calculate the strength or grade of the material To assess the water absorption of aggregates Apparatus The apparatus includes the following: (a) An equilibrium of capability about 3kg, to weigh precise 0.5g, and of such a variety and shape as to allow the weighing of the specimen container when discharged in water. (b) […]
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