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Measurement of cement and aggregates - by weight vs. by volume
Measurement of constituents for concrete is usually carried out by weight since of the following reasons:
(i) Air is trapped inside cement whereas water may be present in aggregates. As such measurement by volume necessitates the consideration of the bulking effect by air and water.
(ii) Accuracy of measurement of cement and aggregates by weight is higher when compared with measurement by volume when weighing machine is properly calibrated and maintained. This decreases the potential of deviation in material quantity with higher accuracy in measurement for the design mix and results in more economical design without the wastage of excess materials.
An I-section beam 350*200mm2 has a web thickness of 12.5mm & a flange thickness of 25mm. It carries a shearing force of 200KN at a section. Sketch the shear stress distribution acr
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IFC= f(Ptr,Paccs+Peng) where ptr = 8, paacs =5 and peng =2 In this eqn. what does comma means and how to solve this eqn.
Q. What is Diamond Crossing? Diamond Crossing is provided when two tracks cross each other either of the same gauge or of different gauges. It consists of two acute crossing (
Determine the quantity of materials required per batch and probable output from a concrete mixing plant of 1200lts capacity. The design per 1000lts of mixed concrete is as follows
Attached information shows construction details of a water tank. The slab was poured in one pour and the walls (incl. Baffles) were poured in two even sections. Forms were stripped
Question Explain the reason why is sulphate-resisting cement not used in marine concrete ? Answer Major components of Portland cement are tricalcium silicate, dicalciu
types of polymerisation
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