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2. Concrete mixer - Wikipedia

   en.wikipedia.org/wiki/Concrete_mixer

   A typical concrete mixer uses a revolving drum to mix the components. For smaller volume works, portable concrete mixers are often used so that the concrete can be made at the construction site, giving the workers ample time to use the concrete before it hardens. An alternative to a machine is mixing concrete by hand.

3. Cement mill - Wikipedia

   en.wikipedia.org/wiki/Cement_mill

   A 10 MW cement mill, output 270 tonnes per hour. A cement mill (or finish mill in North American usage [1]) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills and also vertical roller mills which are more effective than ball mills.

4. Cement kiln - Wikipedia

   en.wikipedia.org/wiki/Cement_kiln

   Cement kilns are used for the pyroprocessing stage of manufacture of portland and other types of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of cement are made per year, and cement kilns are the heart of this production process: their capacity ...

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7. Plug-in electric vehicles in Iowa - Wikipedia

   en.wikipedia.org/wiki/Plug-in_electric_vehicles...

   The Infrastructure Investment and Jobs Act, signed into law in November 2021, allocates US$51 million to charging stations in Iowa. [ 5 ] As of 2022 [update] , the state government has plans to build "alternative fuel corridors", with charging stations located every 50 miles (80 km), along I-29 , I-35 , I-80 , and I-380 .