On stiffer concrete, the effect of a forward-turn, forward-pass on a rider is to ensure the finish faces the concrete.

• A. It ensures the finish faces the concrete
• B. It avoids contact with the concrete
• C. It leaves a rough texture
• D. It causes the finish to sink

Answer: (A)

On stiffer concrete, the way you move the finishing rider determines which surface of the finish material actually contacts the slab. A forward-turn, forward-pass keeps the finish’s smooth face pressed toward the concrete as you move forward, so the finish bonds and levels against the surface. This orientation helps push out small air pockets and creates a uniform, dense finish with good adhesion.

If the technique were to avoid contact, leave the finish surface riding on top of the slab, or produce a noticeably rough texture or sagging, those outcomes wouldn’t give the bond and smoothness intended for a stiff mix. The described forward-pass is specifically about making the finish face the concrete to achieve proper bonding and a consistent finish.