Polylok Product Catalog

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REINFORCED CONCRETE INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS FOR TRAFFIC LOAD BEARING APPLICATIONS
1. Determine location and length of required trench drain. Also
determine drain outlet location.
2. Lay out and excavate for the trench drain. Allow for a minimum of
6” on all sides and 6” on the bottom. (17.5” wide X 11.75” deep)
(see diagram 2)
3. Determine which style of outlet is to be used; end outlet or bottom
outlet. Excavate for drain outlet pipe.
4. If bottom outlet is to be used, use a 3 1/2” hole saw to cut the outlet
opening. If theend outlet is used do not cut the bottom outlets.
(see diagram 3)
5. Install end caps and/or outlets on determined ends. Assemble all
required sections together at grade level. Make sure all grates are
screwed in place. Attach outlet pipe to trench drain.
6. Using duct tape, cover all grate openings. Carefully place the
assembled trench drain into bottom of the trench.
7. Using temporary supports, bring drain up to within approximately
1” of grade. Center trench drain in trench.
8. Using #4 rebar, drive in 4 pieces of verticle rebar through the holes
on trench drain at each corner per section. Make sure rebar is inserted
deeply and tied to provide a firm footing and to prevent floating once
the concrete is poured.
9. Raise the trench drain so that the top of the drain is even with the
finish grade. Wire tie trench to rebar at the 4 corners of each section.
Be sure to wire tie above and below at each coner hole position. Check
drain elevation frequently while tying. (see diagram 5)
10. Wire tie #3 rebar loops to #4 verticle rebars. (see diagram 5)
11. Wire tie #4 horizontal rebars to #3 rebar loops at all intersections.
12. Wire tie remaining #3 rebar loops to #4 horizontal rebars. Space
evenly in between already tied #3 rebar loops at all intersections.
13. Cross tie #4 vertical rebars at all drain joints. (see diagram 4)
14. Check that trench drain is still at proper elevation. Also check that
drain outlet pipe is secured to trench drain and that it has required pitch.
15. Using a 5,000 psi air entrained concrete mix, pour concrete using
proper vibration and consolidation practices.
16. Trowel finish flush with top of trench drain and even with grade.
An edger tool may be used if desired.
17. After concrete begins to set, promptly remove all duct tape from
grates.
REFER TO INSTALLATION DIAGRAM ABOVE