Objective: To assess the Brinell Hardness number HB of the specified sample Tool and Equipment Brinell hardness tester RAB-250, Brinell microscope and indentors (2.5mm and 5mm ball) Description of Machine The Brinell Hardness Tester comprises of a loading system, a chief screw and additionally a dial gauge. The loading system which comprises various factors such […]
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Universal testing machine (UTM) is known as so due to the great resourcefulness of its application. The following tests can be executed with it:- Tension Test. Compression Test. Bending Test. Hardness Test Description The Universal Testing Machine comprises of two chief parts which are the loading unit and the control panel. Loading Unit The loading […]
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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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Production of Coloured Finishes with White Cement: Colours Desired Commercial Names of Colours Approx. Qty necessary (kg per bag of cement) Light Shade Medium Shade Greys, blue-black and black Lampblack*, or carbon black* or black oxide of manganese* or mineral black 0.25 0.25 0.50 0.50 0.50 0.50 1.0 1.0 Blue Ultramarine blue 2.30 […]
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Objective: to Assess the Euler’s buckling load of strut Equipment and Tools Venire Caliper Scale Strut Testing Apparatus Description of Equipment The machinery equipment is designed in such a way that it is enabled to carry out tests on struts of wide assortment of lengths, of which the ends are either hinged or joined. The […]
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The grading limit for single-sized aggregates: Percentage passing for single sized aggregates of nominal size(mm) 63 mm 40 mm 20 mm 16 mm 12.5 mm 10 mm 80 mm 100 – – – – – 63 mm 85 – 100 100 – – – – 40 mm 0 – 30 85 – 100 100 – […]
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Earth-fill materials (1) Whereas most types of soils can be utilized for earth-fill construction development procedures until and unless they are unsolvable and significantly inorganic, the average shake flours and kinds of clays with fluid limits which is greater than 80 ought to for the most part be steered clear away from. The word “soil” […]
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Objective For the assessment of the particle size distribution of the specified fine aggregate and for determination of the fineness modulus, the effective size and uniformly coefficient. Theory Fine aggregate refers to the sand which is basically utilized in mortars. Coarse aggregate is the broken stone which is utilized in concrete. The coarse aggregate when […]
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The workability requirements for various concrete placement is explained below: The prerequisites of concrete workability changes along with range of assortments of construction. Workability of concrete is determined by highly skilled design engineers depending on the concrete strength necessities, the requirements of durability and the for the easiness of the construction at site. For the […]
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