Tamp 1149759 220728363 2008-06-21T08:15:18Z 16@r 839108 +wikt {{Wiktionary}} A '''tamper''' is a device used to compact or flatten an [[Aggregate (composite)|aggregate]], typically to make it resistant to further compression. Some examples are small, handheld tampers to compress ground [[coffee]] into a puck in the preparation of [[espresso]], manual or powered tampers to compact [[gravel]] in the preparation of laying a concrete or brick [[patio]] or [[walkway]] so that the underlying gravel layer does not settle over time, and self-propelled, mechanised [[ballast tamper]]s, which compact the [[Track ballast|ballast]] underneath [[rail tracks]]. [[Category:Tools]]