Repairing fixing in brick

[leej90]

Hello

I have a pull up bar currently held into brick by anchors. But one has come loose. I think the brick are the hollow types with the pyramid wedge shape in the top.
If I tighten the bolt I think the anchor will blow the front of the brick off.

I have some seen some ideas with the resin, sleeve and threaded bolt to then use a nut.

With the resin is it suitable to fill the void in the brick and then set into that? Or is that the whole idea and I've missed the point?

Any advise would be gratefully received or any other ideas please.

 

[Wayners]

I've fixed loose bricks with resin.
Stuff is stinky and dries hard.
Inject. Push in the resin a threaded bar. After 2 hours it's set

 

[opps]

The wedge shape is the frog. I would guess that they are only about 1.5cm tall.

I am not a brickie but I have only seen frogs on the top of solid bricks.

If they are hollow bricks you can drill a hole in the brick, insert a sleeve, squirt in some resin. You need to to insert the threaded rod immediately. The resin will go off pretty quickly though.

Plastic Mesh Resin Sleeve - Grayson | Award-Winning Supplier

The Plastic Mesh Resin Sleeve guarantees the anchor rod ensures precise centering, which helps to achieve a secure and stable installation. This product also reduces the amount of resin consumption, contributing to cost savings and efficiency. The design of the Plastic Mesh Resin Sleeve is user...

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The resin is not designed to be drilled into. It is really hard to drill. If you try, the drill bit will probably deviate off course.

 

[leej90]

Excellent thanks!

 

[opps]

From memory, ideally, you will use a threaded rod that is 4mm smaller than the original drill size. That will allow 2mm of resin around each side of the threaded bolt.

When doing those kind of jobs, I normally order from Orbital Fasteners- £25 ex VAT for free next day delivery- next day is within the M25 though. They are amazing. My last order was to fit a metal gate post that was 3" away from a small brick wall. 2 lots of 8m black threaded rod plus 4 nuts, 4 6m coach screws and 4 10mm nylon plugs. Because they will sell individual screws/etc (rather than a box of 50/100/etc), I then have to bulk out my order with other stuff that I need. Overall, the prices of the other bits/stuff are very reasonable.

I cannot recommend them highly enough- and no- I do not work for them.

 

[leej90]

From memory, ideally, you will use a threaded rod that is 4mm smaller than the original drill size. That will allow 2mm of resin around each side of the threaded bolt.

Thanks. I'll have to drill a larger hole. I'm not sure it sold be strong enough

 

[opps]

Thanks. I'll have to drill a larger hole. I'm not sure it sold be strong enough

Ideally, you would drill into the middle of the brick.

Are the bricks visible or plastered over.

Photos will help others to advise further.

 

[aveatry]

Thanks. I'll have to drill a larger hole. I'm not sure it sold be strong enough

The resin is very very strong. If its a big hole then you hit a cavity in the brick you can use the mesh sleeves but if you buy a Rem kit it has a long end with a spiral inside that mixes the to resin components, stuff it in and slowly pull out as you squeeze the gun trigger.
A tip is to mask off the surrounding area of the hole as wend you buts in the threaded rod some resin will squeeze out and is almost inpossible to get off - it like sh=t on a blanket.

It takes mins to go off so work quick. The tube fits in a standard silicone gun and has two separate plastic pouches of the resin that mixes together through the spiral - which is a one time use item and you buy more each job as the resin left inside is possible to clean and goes solid.