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Ride on power trowels range in size from 1.8 m (6 ft) machines weighing 270–320 kg (600–700 lb), up to 3.7 m (12 ft) machines weighing over 910 kg (2,000 lb). Power ranges from small 10 kW (13 hp) single cylinder engines, all the way up to 70 kW (100 hp) multi fuel V8 engines.
A float is used after the surface has been made level using a screed. In addition to removing surface imperfections, floating will compact the concrete as preparation for further steps. A float can be a small hand tool, a larger bull float with a long handle, or a power trowel (also called a power float) with an engine. Concrete floats are ...
A grout float is used for applying and working grout into gaps in floor and wall tile. Gauging trowel has a rounded tip, used to mix measured proportions of the different ingredients for quick set plaster. Pool trowel is a flat-bladed tool with rounded ends used to apply coatings to concrete, especially on swimming pool decks.
A typical concrete mixer uses a revolving drum to mix the components. For smaller volume works, portable concrete mixers are often used so that the concrete can be made at the construction site, giving the workers ample time to use the concrete before it hardens. An alternative to a machine is mixing concrete by hand.
Concrete finishing trowel: is used to smooth a surface after the concrete has begun to set; it is held nearly level to the surface of the concrete, and moved with a sweeping arc across the surface. Corner trowel : used for shaping concrete around internal or external corners; the handle is located at the center of a 90° bend in the blade for ...
An advertisement for a Marshalltown Trowel from 1912. The origins of Marshalltown can be traced back to the American inventor and entrepreneur Dave Lennox.While working in his machine shop in the mid-1880s in Marshalltown, Iowa, Mr. Lennox received a visit from a stonemason who asked him to make a better plastering trowel [7] while working on the construction site of the Marshall County ...
There are two types with the first being the barrel truck or in–transit mixers. This type of truck delivers concrete in a plastic state to the site. [2] The second is the volumetric concrete mixer. This delivers the ready mix in a dry state and then mixes the concrete on site.
The mix design of the concrete should be 3500 psi or higher. The concrete should be poured full depth to take advantage of the concrete's full structural strength, and also help to prevent cracks. The concrete should always be professionally finished with power trowels and cured with water for seven days. Polishing should not begin until the ...