Concrete Anchor bolts, now what?

[whejdak]

I have five concrete PD58 wej-it anchor bolts in the concrete that will not seat below the concrete surface or near the top. They will tighten up but not until they are out of the concrete by maybe 1/2 inch. These are for a two pole car hoist lift. I wanted to epoxy them in to stop the spinning but I can't get them out. And I can't push them down. The thought was to put new ones in with epoxy after pounding these down. My only choice that I can see is to drill five new holes, keeping the old holes 6" apart. That means moving back or forward the proper distance. Otherwise to keep the same 120" distances that I have now. I would have to move sideways and drill 10 holes. Five for the other side which is perfect now.
Looking for help on:
moving the posts closer or farther away.
expoxing the current ones in.
anything else that might make sense.

 

[treasureseeker]

You may have to bottom the PD58 wej-it anchor bolts in the holes to get them to grab

 

[whejdak]

I don't understand what you mean by "bottom" Can you explain?

 

[mad1stgen]

Would be possible to drill them out maybe ?

This is the exact reason I am leaning towards the epoxy anchor kit from GES.

 

[drakers]

You have to drive them in with hammer to get them to expand the wedge at the bottom of the bolt.

 

[mad1stgen]

You have to drive them in with hammer to get them to expand the wedge at the bottom of the bolt.

That's not how the Wej-IT PD-58 anchors work.

 

[rlitman]

That's not how the Wej-IT PD-58 anchors work.

Yes, it is. If they just fall in the hole, the collar won't grab. They need to be kinda tight.
Here's a question: is your drill bit bent? If so, the hole could be a tiny bit oversized, and that could cause the problem.

Anyway, you need to use a sledgehammer, and a punch to drive them all the way in, and then use an anchor specifically made to be glued, if you want to go that route.

 

[ddawg16]

This is a perfect example of why epoxy is a better way to go.

With a wedge style bolt lik the "Wej-IT", your depending on the wedge shleves sliding down and wedging against the side of the hole in the concrete. These work fine if the hole is perfectly round and straight. But with concrete, all it takes is one little corner from one little rock in the hole to stick out far enough from you pulling the anchor out, but not putting enough force on the sleeves to push them down...thus letting the bolt turn.

I think your best choice is to cut them off flush and drill new holes with the plan of using epoxy.

 

[whejdak]

I agree with this so far. It looks like the only way. I am going to use more PD58 wej-it anchors. They don't have any slots where the epoxy can get into the threads. If the epoxy holds as tight as they say it will this should work out.

 

[whejdak]

No, these expand once you have them pounded in and then you use a nut, washer and bolt to pulll it back up from the 5/8 " that you pounded them down to.