Quick concrete question....

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Discussion

StevieBee

Original Poster:

12,970 posts

256 months

Sunday 12th May
quotequote all
I laid some concrete down yesterday - extending a bit of hardstanding in preparation of a new patio.

We ended up being a few bags short. Is there any problem laying the remainder today or should I wait for what we put down yesterday to properly cure?

smifffymoto

4,594 posts

206 months

Sunday 12th May
quotequote all
The only problem I see with doing it in two is you have a joint which isn’t reinforced with re-bar so could sink or settle in the future.

paulwirral

3,165 posts

136 months

Sunday 12th May
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smifffymoto said:
The only problem I see with doing it in two is you have a joint which isn’t reinforced with re-bar so could sink or settle in the future.
This is the problem , it may possibly crack on the joint in time .
In the past when I’ve been faced with this I’ve drilled into the existing pad at 45 degree angles , hammered in re bar then bent it back at 45 degrees the opposite way and laid the new concrete . It gives the joint a little stability, ties the two parts together as such , or at least it does in my mind ! Put as many in as you can within reason .
I’m not saying it’s a perfect solution but I’ve never had a problem over the years , I did it a while ago when I extended my own patio area off an existing pad .

JuanCarlosFandango

7,838 posts

72 months

Sunday 12th May
quotequote all
paulwirral said:
This is the problem , it may possibly crack on the joint in time .
In the past when I’ve been faced with this I’ve drilled into the existing pad at 45 degree angles , hammered in re bar then bent it back at 45 degrees the opposite way and laid the new concrete . It gives the joint a little stability, ties the two parts together as such , or at least it does in my mind ! Put as many in as you can within reason .
I’m not saying it’s a perfect solution but I’ve never had a problem over the years , I did it a while ago when I extended my own patio area off an existing pad .
I did the same, just drilled metal rods in. It's how you'd tie an extension in to an existing house and absolutely fine for a patio. It probably is still the weakest point in theory but if it's strong enough it doesn't matter.

JuanCarlosFandango

7,838 posts

72 months

Sunday 12th May
quotequote all
paulwirral said:
This is the problem , it may possibly crack on the joint in time .
In the past when I’ve been faced with this I’ve drilled into the existing pad at 45 degree angles , hammered in re bar then bent it back at 45 degrees the opposite way and laid the new concrete . It gives the joint a little stability, ties the two parts together as such , or at least it does in my mind ! Put as many in as you can within reason .
I’m not saying it’s a perfect solution but I’ve never had a problem over the years , I did it a while ago when I extended my own patio area off an existing pad .
I did the same, just drilled metal rods in. It's how you'd tie an extension in to an existing house and absolutely fine for a patio. It probably is still the weakest point in theory but if it's strong enough it doesn't matter.

DonkeyApple

55,780 posts

170 months

Sunday 12th May
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Or just some signage next to the potentially weaker section.


StevieBee

Original Poster:

12,970 posts

256 months

Monday 13th May
quotequote all
Belated thanks chaps.