Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Can concrete be obtained back from concrete structures?

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Drying of concrete is an irreversible change. Once concrete has dried and set, it cannot be changed back to its ingredients.