How to make cement/concrete bike rack (??? about cement ???) any advice?

locking bicycle trailer $1000+, only option is to lock outside but nothing to lock to. plan is to use and fill container with cement and enclose a locking rail. laid flat on side with exposed locking mount. I have NO specialty tools, nor any knowledge about cement. do i need to reinforce? how mix myself; or use... show more locking bicycle trailer $1000+, only option is to lock outside but nothing to lock to.

plan is to use and fill container with cement and enclose a locking rail. laid flat on side with exposed locking mount.

I have NO specialty tools, nor any knowledge about cement.

do i need to reinforce? how
mix myself; or use Quickrete
dont attempt and higher contractor

(trash can will be completely upright until dry/set)

is this a process? (fill 1/2 way insert mounts/supports, then complete filling)
or can i just make supports and fill-in with cement

online calculators state 20lbs per gallon conversion (approx 450 lbs)

1 - "slim jim" 23gal garbage can (layed on side)
1 - U-lock (u-shackle upright, centered in block)
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1 - "slim jim" 23 garbage can (layed on side)
configured 1" black iron pipe (rail upright)

enclosed t-rail @ both ends; with exposed locking rail

(foot) T-rail > "x" height > 90 elbow > rail > elbow > t-rail

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- or -

15" cubed cement block (260lbs)

with gate/post driver (pre filled with cement) and (some of handles enclosed, and 1" pipe in center with just T joints, maybe stubs in base of block)
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