Curb And Gutter Expansion Joint Spacing

Right two runs butted together according to smacna the best way to protect your gutter system from thermal expansion is to split any run of 50 ft or more into two separate runs capping both ends and leaving gap between the top edges of the end caps fig 1.

Curb and gutter expansion joint spacing.

The depth of contraction joints should be one fourth of the cross section of the concrete. Joint shall be placed 1 0 from. Expansion joint shall be placed. Contraction joint spacing shall be 10 maximum or as directed by the inspector.

When directed by the engineer the. 340 729 and cos sec. Sidewalk that abuts curb or gutter shall have joints that match the curb or gutter joints. Space joints between 6 feet and approximately 20 feet apart as the engineer directs.

Whether or not joints should be spaced close enough to control all cracking is a matter of local preference. The curb gutter or curb gutter directly opposite construction or contraction joints in adjoining concrete pavement and at the required spacing in curb gutter or curb gutter adjoining asphaltic pavement. Small cracks through curbs do not usually reduce the serviceability or attractiveness of curbs as long as the curbs are uniformly supported. Usually contraction joint spacing of fifteen feet 15 ft is necessary to avoid intermediate cracks in separate curbs.

Notes type b ribbon curb notes vertical curb gutter with depressed lip type a 2. Left per made expansion joint. 50 0 maximum expansion joint spacing. Maximum joint spacing for 5 foot wide sidewalk is 6 25 feet.

Expansion joints a s t m.