Always review and check the specifications, proposed mix designs and delivery tickets for air-entraining admixtures so you do not unknowingly power trowel air-entrained, normal-weight concrete.

Allen Engineering’s riding concrete trowel HDX615 is powered by Power Solutions International (PSI)’s 2.4-liter dual-fuel gasoline and propane engine. The concrete trowel is on display during ...

An curved arrow pointing right. This hovercraft-like machine is used to smooth over concrete during construction. The HDX780 riding trowel was developed by Allen Engineering and is used for large ...