The materials used in sidewalk construction shall consist of a minimum of five (5) sack per cubic yard concrete with aggregate conforming to the building code, maximum size of one and one-half inches (11/2"). Sidewalk surfaces shall be broom finished or similar roughened surface to prevent sliding. Expansion joints shall be in accordance with the building code requirements. (1962 Code § 8-2-6; amd. 2014 Code)