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Concrete cover, in reinforced concrete, is the least distance between the surface of embedded reinforcement and the outer surface of the concrete (ACI 130). The concrete cover depth can be measured with a cover meter .
A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving ( see below ).
Slab depth is typically 75 mm (3 in) to 130 mm (5 in) thick. [5] [3] As a rule of thumb, the depth should be 1 ⁄ 24 of the span. [5] The width of the ribs is typically 130 mm (5 in) to 150 mm (6 in), and ribs usually have steel rod reinforcements. [5] The distance between ribs is typically 915 mm (3 ft). [3]
Since thin metal sheds weigh much less than wood or PVC plastic sheds, thin metal sheds are more at risk of being damaged by heavy winds. To prevent wind damage, thin metal sheds should be attached to a concrete foundation with screws. [9] In countries where the climate is generally mild, such as Australia, very large metal sheds are used for ...
Pre-cast concrete beams may be delivered on site to be installed for the second floor, after which a concrete slab may be poured for the pavement area. This can be done for multiple stories. [ 17 ] A parking garage of this type is just one possible example of many structures that may use both reinforced concrete and structural steel.
An under reamed pile is used in the base to remove this defect. 2. Under reamed piles are used in low bearing capacity Outdated soil (filled soil) 3.Under reamed piles are used in sandy soil when water table is high. 4. Under reamed piles are used, Where lifting forces appear at the base of foundation.