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Concrete Culvert
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and developmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoover Dam, Boulder
Hoover may refer to: Music * Hoover (band), an American post-hardcore band * Hooverphonic, a Belgian band originally named Hoover * Hoover (singer), Willis Hoover, a country and western performer active in 1960s and '70s * "Hoover" (song), a 2016 song by Swedish rapper Yung Lean * Hoover sound, a heavy bass driven drone sound used in electronic music * Hoover (composer), Katherine Hoover an American contemporary classical music and chamber music composer. People * Hoover (surname) ** Herbert Hoover, 31st president of the United States ** J. Edgar Hoover (1895–1972), first director of the Federal Bureau of Investigation (FBI) * Hoover Orsi (born 1978), Brazilian race car driver * Hoover J. Wright (1928–2003), American football and track and field coach Places in the United States * Hoover, Alabama * Hoover, Indiana * Hoover, Missouri * Hoover, Oklahoma * Hoover, South Dakota * Hoover, Texas * Hoover Dam, on the Colorado River, Nevada and Arizona * Hoover Dam (Ohio), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
