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Concrete spalling from the ceiling of an office unit (interior) in Singapore, possibly due to rebar corrosion. Reinforced concrete can fail due to inadequate strength, leading to mechanical failure, or due to a reduction in its durability. Corrosion and freeze/thaw cycles may damage poorly designed or constructed reinforced concrete.
Drill rod diameters range from 0.0135 to 1.5 in (0.34 to 38.10 mm); in the United States diameters smaller than 27 ⁄ 64 th of an inch (11 mm) are made in letter drill sizes and number drill sizes, in addition to fractional sizes. Lengths are usually one or three feet (0.3048 or 0.9144 m).
Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]
Quercus suber, commonly called the cork oak, is a medium-sized, evergreen oak tree in the section Quercus sect. Cerris. It is the primary source of cork for wine bottle stoppers and other uses, such as cork flooring and as the cores of cricket balls. It is native to southwest Europe and northwest Africa.
The ground-floor casino was 14,000 sq ft (1,300 m 2), while a second casino, consisting of 3,000 sq ft (280 m 2), was located in the dome on the 29th floor; it was the first high-rise casino in the state. [19] At the time of opening, the ground-floor casino featured red and black colors, while the upper casino used orange coloring and wood. [103]
The beams are spaced 4 feet (1.2 m) to 18 feet (5.5 m) apart and the planks are 2 inches (5.1 cm) or more thick possibly with another layer of 1 inch (2.5 cm) on the top as the finished flooring could span these distances. The planks may be laid flat and tongue and grooved or splined together or laid on edge called a laminated floor. [24]
Jones dropped Johnson in the first round and hard in the third round but backed off and allowed Reggie to finish the fight. The year 2000 began with Jones easily beating the hard-punching David Telesco via a 12-round decision on January 15 at Radio City Music Hall to retain his titles, which was also the first fight hosted at the venue.
Baltimore [a] is the most populous city in the U.S. state of Maryland.With a population of 585,708 at the 2020 census, it is the 30th-most populous US city. [15] Baltimore was designated as an independent city by the Constitution of Maryland [b] in 1851, and is the most populous independent city in the nation.