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The tremie concrete placement method uses a vertical or nearly vertical pipe, through which concrete is placed by gravity feed below water level. [4]The lower end of the pipe is kept immersed in fresh concrete so that concrete rising from the bottom displaces the water above it, thus limiting washing out of the cement content of the fresh concrete at the exposed upper surface.
Horses of other bloodlines brought back to Europe during the Crusades had a strong influence on the Breton, and two types subsequently developed. [7] The Sommier was the common, heavier type, used mainly as a pack horse and for farm and draft work.
Direct reduction processes can be divided roughly into two categories: gas-based and coal-based. In both cases, the objective of the process is to remove the oxygen contained in various forms of iron ore (sized ore, concentrates, pellets, mill scale, furnace dust, etc.) in order to convert the ore to metallic iron, without melting it (below 1,200 °C (2,190 °F)).
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LONDON/SYDNEY (Reuters) -The U.S. dollar was poised for a big weekly gain on Friday, towering near one-year highs as a hawkish turn from the Federal Reserve chief sent short-term Treasury yields ...
A pervious concrete street in 2005. Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge.
Get your telescope ready in September, when Saturn will take center stage in the sky and shine brighter than at any other point in the year. The planet will reach opposition on Sept. 21, around ...
"Mama Kelce's cookie" was the fourth-most Googled recipe in 2024, said the report. The cookies first burst onto the scene in 2023, when Donna was seen giving her sons, Jason and Travis, each a ...
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