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Curb, curb and gutter and separate gutter shall consist of a concrete core and a mortar surface.
The minimum compressive strength of the concrete and requirements for the quantity of mixing water and the concrete slump must conform to the city of Dallas Addendum to Public Works Construction Standards – North Central Texas as published by the North Central Texas Council of Governments, current edition. Mortar shall be composed of one part Portland cement, one and one-half parts fine aggregate and water. (Ord. 8590; 31313)
Three-fourths inch expansion joints shall be spaced at 25 to 30 foot intervals or as otherwise specified. The three-fourths inch expansion joints shall be filled with a three-fourths inch premoulded bituminous expansion joint filler or other approved type and shall extend the entire depth and width of the concrete section. Curb and gutter shall be grooved three-eights inch deep on five-foot centers. (Ord. 8590)
(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)
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