trowel
noun
any of various tools having a flat blade with a handle, used for depositing and working mortar, plaster, etc.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Troweling, that is troweling without grout wash, requires, of course, that the concrete be stripped before it has become too hard to be worked.
From Concrete Construction Methods and Costs by Halbert Powers Gillette