It becomes as hard as ston in tl? iOurpe of a few months. Care must be exercieed not to use too much oil—although no evil will be the result—excepting that the cement will require longer ...

Using an abrasive diamond or medium bond diamond on a hard concrete application and the diamonds glaze over. In the interest of productivity, efficiency, and simplifying the process to help make ...

The Pantheon in Rome - almost 2,000 years old and built from concrete A time-travelling Victorian stumbling upon a modern building site could largely get right to work, says Chris Thompson ...