what materials were used to build the hoover dam?
150754
The principal materials, all ofwhich were purchased by the government, were: Reinforcement steel, 45,000,000 pounds Gates and valves, 21,670,000 pounds Plate steel and outlet pipes, 88,000,000 pounds Pipe and fittings, 6,700,000 pounds or 840 miles Structural steel, 18,000,000 pounds Miscellaneous metal work, 5,300,000 ...
536016
The intention was to divert the flow in the river and help irrigate the crops. The dam was built of earth and wood, so it is difficult to be certain of the exact characteristics of the dam. Around 100 AD the Romans were the first civilization to use concrete and mortar in their gravity dams.
1394774
The dam was built by a consortium of Portuguese, German, British, and South African companies; construction of the dam began in 1969 and was completed in 1974. The last of five 425-megawatt generators was installed in 1979.
763135
There are lots of materials that are used to build roofs. These include wood, stone, clay, glass, metal, polycarbonate roofing sheets, and many more.
266318
It is made from many mined materials such as gold, copper, lead, nickel, zinc, beryllium, tantalum, coltan, silver, and other substances that conduct electricity.
129801
Most firearms are made of steel, aluminum or plastic, or a combination of metal and plastic. Each material has natural attributes that benefit effective gun construction, including aesthetic, weight and strength. Some materials are preferable to others, specifically for their strength.
941048
Today most rocks are quarried for use in construction. Sand and gravel are used as aggregate in cement and the cement agent comes from cured limestone, (driving off CO2 and moisture allows cement to set up when water is added). Gavel is also used for road beds, and landscaping.
1455888
Hoover Dam generates, on average, about 4 billion kilowatt-hours of hydroelectric power each year for use in Nevada, Arizona, and California - enough to serve 1.3 million people.
1244185
['Concrete. At the top of the list, concrete has to be the most common construction material of all. ... ', 'Steel. If you have concrete, you need to have steel too. ... ', 'Wood. ... ', 'Weatherproofing solvents. ... ', 'Concrete blocks. ... ', 'Contact us.']
933277
The pyramids were built of limestone, granite, basalt, gypsum (mortar), and baked mud bricks. Limestone blocks were quarried at Giza and possibly other sites. Granite likely came from upriver at Aswan. Alabaster came from Luxor and basalt from the Fayoum depression.
225923
['Alligator.', 'Sandpaper.', 'Nail File.', 'Asphalt.', 'Granite.', 'Limestone.', 'Coconut.', 'Coral.']
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Cement requires a closely controlled combination of raw materials, including calcium, silicon, iron and aluminium. Common materials used to manufacture cement include limestone, shells, and chalk or marl, combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore.
1413768
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using the weight of the material alone to resist the horizontal pressure of water pushing against it.
591889
['Hard, dense wood (like rosewood, cedar wood, purple heartwood, or cardinal wood)', 'Hardwood, pine or plywood.', 'Chalk.', 'Table saw or woodcutting power tool.', 'Wood glue.', 'Nails.', 'Drill.', 'Rubber bands.']
409169
Concrete, in construction, structural material consisting of a hard, chemically inert particulate substance, known as aggregate (usually sand and gravel), that is bonded together by cement and water.
722885
The construction technique consists in using aluminium tubes as pillars, wrapped in recycled paper using natural glues, which are then treated with wax and waterproofed. For regulatory reasons however, some of the aluminium tube pillars were replaced by steel.
66556
['Biotic materials. Wood (rattan, bamboo, bark, etc.) Natural fiber (silk, wool, cotton, flax, hemp, jute, kapok, kenaf, moss, etc.)', 'Inorganic material. Stone (flint, granite, obsidian, sandstone, sand, gems, glass, etc.) Native metal (copper, iron, gold, silver, etc.) ... ', 'Other natural materials. Soil.']