Describir: Field work in concrete construction, prep. especially for home study

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/ //---`'   -| ||-  | // __     -| ||-  | '--' || | || | || | |  \ || 
\ \\___     _| ||_  | \\_\ ||   _| ||_  | .--. || | \\_/ || | |__/ || 
 \_____||  /_____//  \____//   /_____// |_|| |_||  \____//  |_____//  
  `----`   `-----`    `---`    `-----`  `-`  `-`    `---`    -----`   
                                                                      
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