how to make a ballast/anchor for securing the bike

[czakal]

Hello,
Been a while since I posted here. Unfortunately I was victim of an attempted bike theft for the third time (this time my bike was abandoned and damaged and had to be sold for salvage). I still need one to commute, but it's difficult to do much for security as I can only leave it on my unsecured driveway. The best thing I can do is make a heavy ballast to chain it against. I can fill up an old trash bin with concrete, and put in a metal loop/chain so that I can chain the bike lock against it. It's not a perfect solution but it should put off more casual thieves. Question: what kind of concrete should I use to make the anchor? Is normal concrete from DIY stores strong enough? If it's too easy to crack, then it wouldn't provide that much security. If you have other ideas for making some kind of security ballast, please let me know. Many thanks for your ideas!

Seb

[Vincent]

You can get them with a wide base that covers the concrete, but you also need to make sure what you're going into is safe enough. If the surface is concrete, some can be fastened down with bolts. You can go into walls too, as long as the bolts go in deep enough and are covered by the lock, they're pretty safe. It depends how badly the tea-leaves want your bike.

'Loads of vids on youtube
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Space Is Deep

[Rogerborg]

"Postcrete" is bag of pre-mixed cement and aggregate. Tip enough into your container to fill it 3/4 up, start adding water and mix, repeat until it's just short of sloppy, sling your chain / loop in, cover, Strongbow time.

https://i754.photobucket.com/albums/xx181/PaulWiggins888/Picture13.png
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[czakal]

Perfect, thanks for the tips. Once the security's sorted, time to select a new bike...