Stiffened bull float apparatus

摘要: A bull float for working and finishing concrete the like is provided. The includes a blade. blade has first surface contacting work to be troweled. leading edge trailing edge. also member disposed at carries second an angle surface. further third planar metal sheet having front rear edge, its mid area bowed outwardly relative of are secured points fixed with respect exerts uniform opposing bias forces counteract residual compressive stresses developed on during use float.