(a) Foundation or subgrade for all work must be set at the grades determined by the director. The director may inspect the foundation, subgrade, and reinforcing before concrete is poured.
(b) Concrete must be thoroughly compacted so that the minimum thickness conforms to the requirements of this article. Concrete must be free from honeycombing, rock pockets, and separation and segregation of ingredients. Upon completion of the concrete core, the one-half inch mortar surface must be placed while the core is still green, the work being carried on uniformly so that a perfect bond is obtained between the concrete core and mortar surface. (Ord. Nos. 8590; 22026)