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A bush hammer, also known as an axe hammer, is a
Bush hammers exist in many forms, from simple hand-held hammers to large electric machines, but the basic functional property of the tool is always the same – a grid of conical or
File:bouchard.JPG, A bush hammer chisel for pneumatic hammers
File:IMG 1098 Sandstein-Oberfläche gestockt.JPG, Bush-hammered sandstone
File:Beuchaer-gestockt.jpg, Bush-hammered granite porphyry
File:Prikking.gif, Bush-hammering machine
A bush hammer, also known as an axe hammer, is a masonry
Masonry is the craft of building a structure with brick, stone, or similar material, including mortar plastering which are often laid in, bound, and pasted together by mortar (masonry), mortar. The term ''masonry'' can also refer to the buildin ...
tool used to texturize stone and concrete
Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactur ...
. The term is derived from the German word ''bosshammer'', where Old German ''bossen'' meant "to beat".
Description and use
Bush hammers exist in many forms, from simple hand-held hammers to large electric machines, but the basic functional property of the tool is always the same – a grid of conical or pyramid
A pyramid () is a structure whose visible surfaces are triangular in broad outline and converge toward the top, making the appearance roughly a pyramid in the geometric sense. The base of a pyramid can be of any polygon shape, such as trian ...
al points at the end of a large metal slug. The repeated impact of these points into stone or concrete creates a rough, pockmarked texture
Texture may refer to:
Science and technology
* Image texture, the spatial arrangement of color or intensities in an image
* Surface texture, the smoothness, roughness, or bumpiness of the surface of an object
* Texture (roads), road surface c ...
that resembles naturally weathered rock. They can help to increase bonding effectiveness when applying new concrete to an existing concrete surface by increasing the surface area of the bonding zone.
The bush hammer has been modernized, making it easier for the users to perform tasks while still producing the intended effect. Powered machines are built to give the impression that a hand-powered bush hammer has been applied to the concrete. This allows contractors to work on a larger amount of the material without using individual hammers for the project. This saves time and labor costs for those working with the tool. There are angled points that rotate to help imitate this tool.
History
In 1831, Joseph Richards (1784–1848) invented the bush hammer. The US patent was issued February 20, 1828, for a stone-working tool, with a patent number of 5010X. His patent sparked many other inventors' designs for the bush hammer.Similar tools
The bush hammer is the patented title for this tool but has also been called different names over the years. The other most common name was the patent hammer which is described to have the same features and was used around the same time of the bush hammer. Another name this tool can go by is the axe hammer. This is due to the sharp conical edges the face of the hammer would contain.Gallery
See also
* * *References
Hammers Stonemasonry tools {{Tool-stub