News

The gasoline trowelling machine completes the better trowelling

2013-12-26 15:40:59


 The size of a machine(gasoline trowelling machine)is expressed by the diameter, in inches, of a circular area outlined by the moving blades.
The most common machine size is a walk-behind model, 36- to 48-inch-diameter. While there are many different machine types, the basic parts and their function remain the same machine.
The blades of the machine(pavement trowelling machine) finish the concrete as they a re swirled around the surface. Blades are classified as float (10 inches wide), trowel (6 inches wide) or combination according to their basic use. Float blades are wider than trowel blades, with the leading edges turned up so they will not penetrate or tear the fresh concrete surface.The smaller trowel blades apply more pressure to densify the surface as the concrete hardens.
The trowelling of gasoline trowelling machine:
Troweling is done after floating to produce a dense,smooth, hard surface. Two or more successive trowelling operations may be necessary to produce the desired floor surface. Allow time between successive trowellings to permit the concrete to increase its set.
Combination blades, 8 inches wide, are used for both floating and troweling operations.
The blades are attached to a vertical rotating shaft by a spider assembly. Commonly three but sometimes four blades, equally spaced in a radial pattern, are attached to the spider assembly. A strong, rigid spider assembly is required to maintain vertical and horizontal control of the blades during the finishing operations.