Concrete placing & finishing equipment

Concrete Construction, May, 2005

Guntert & Zimmerman Construction Div Inc

Ingersoll-Rand#

Margar Industries Inc

MBW Inc

Messinger Inc

Metal Forms Corp#

Miller Formless Co Inc#

Power Curbers Inc#

Power Pavers Inc

Rexcon LLC

Spartan Steel Products

Timco Inc

VIBCO Inc

VERTICAL SLIPFORMING EQUIPMENT

MBW Inc

Power Curbers Inc#

Tygar Mfg Inc

Companies highlighted with # are advertisers.

Final Finishing

Edgers

* Use to produce a clean slab edge that is less likely to chip

* An edger is less likely to dig into concrete or leave a bumpy surface if a trowel is used in a vertical sawing motion to dislodge aggregate particles away from the edge forms

* After bull floating and hand floating, use the edger to move large aggregate away from the form

* Don't start in a corner and don't raise the edger off the concrete unless the tool is in motion

* Use an edger with the widest practical width

Groovers

* Use to control crack location by cutting joints to a depth of at least one-fourth the slab thickness

* Push the groover into the concrete, then move it forward while applying pressure to the back of the tool

* After the joint is cut, turn the groover around, running it back over the cut to give a smoother finish

* For a straight cut, use a chalk line or straightedge as a guide

Floats

* Use to remove imperfections and to bring mortar to the surface for troweling and to bring concrete flush with the edge of the form

* Hold the float flat and at arm's length, moving it in a wide semicircular motion until surface is smooth

* Use magnesium-alloy tools for air-entrained concrete

* More than one float pass may be required

Trowels

* Use to produce a hard, dense surface

* Hold the trowel at a slight tilt at arm's length and move it in a semicircular motion, overlapping each pass by one-half until surface is smooth