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Conventionally the term concrete refers only to concrete that is reinforced with iron or steel. However, other materials are often used to reinforce concrete e.g. organic and inorganic fibres, composites in different forms. While compared to its compressive strength, concrete is weak in tension. Thus adding reinforcement increases the strength ...
Comparison of SWG (red), AWG (blue) and IEC 60228 (black) wire gauge sizes from 0.03 to 200 mm² to scale on a 1 mm grid – in the SVG file, hover over a size to highlight it. In engineering applications, it is often most convenient to describe a wire in terms of its cross-section area, rather than its diameter, because the cross section is directly proportional to its strength and weight ...
The anchor must be adequate to resist the maximum tensile load of the guy wires; both the dead load of the tension of the wire and the maximum possible live load due to wind. Since the guy wire exerts its force at an angle, the anchor has both vertical and lateral (horizontal) forces on it.
4/1.5 mm 2 and 6/2.5 mm 2 have stranded conductors and a solid CPC (fixed high power equipment or sub-mains) 10/4 mm 2 and 16/6 mm 2 have stranded conductors and CPC (fixed high power equipment or sub-mains) In older properties (pre-1970) cable with imperial sizes are found, sometimes without CPC.
Reinforced concrete, also called ferroconcrete, is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility.
Concrete has a very low coefficient of thermal expansion, and as it matures concrete shrinks. All concrete structures will crack to some extent, due to shrinkage and tension. Concrete which is subjected to long-duration forces is prone to creep. The density of concrete varies, but is around 2,400 kilograms per cubic metre (150 lb/cu ft). [1]
Anchors achieve holding power either by "hooking" into the seabed, or weight, or a combination of the two. The weight of the anchor chain can be more than that of the anchor and is critical to proper holding. Permanent moorings use large masses (commonly a block or slab of concrete) resting on the seabed.
Since the original concertainer, HESCO has developed specialized variants: MIL is the basic earth-colored unit for military use. Example dimensions of typical configurations are 1.4 m × 1.1 m × 9.8 m (4.6 ft × 3.6 ft × 32.2 ft) to 2.1 m × 1.5 m × 30 m (6.9 ft × 4.9 ft × 98.4 ft). [11]
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