Thread: Laitance on a new slab - how to approach removal/repair?

My experience with tribunal matters is that the other party arrives and usually makes a deal 5 minutes before the hearing time.

As I stated from the outset do not give in and accept nothing other than a proper concrete job. Concreting is not rocket science - after all even the Romans managed to do it properly a couple of thousand years ago!

Originally Posted by Daniel

after all even the Romans managed to do it properly a couple of thousand years ago!

...and a lot of it is still standing.

Originally Posted by p38arover

...and a lot of it is still standing.

...which is mortar the point!

Originally Posted by Hoges

...which is mortar the point!

... very droll



The Romans' labour cost component was minimal .

Only had to sling the whippers a few denarii

Originally Posted by Daniel

My experience with tribunal matters is that the other party arrives and usually makes a deal 5 minutes before the hearing time.

As I stated from the outset do not give in and accept nothing other than a proper concrete job. Concreting is not rocket science - after all even the Romans managed to do it properly a couple of thousand years ago!

I received a very long winded email from the company yesterday afternoon, basically telling me the slab just needs more hardener & telling me that I'm the one refusing to co-operate because I banned them from my site.
I didn't ban them - I just asked them to let me know when they were coming around so I would be present rather than them working out when I wouldn't be home so they could jump the fence to have their own inspection done.


They're now outright lying about conversations that never happened so that's the last straw as far as I'm concerned.

Long story, short.


A new 100mm slab is going on top of the original. It's been pressure washed but not to my liking - the engineer is happy enough though & has said so in writing.


The pour is happening on Friday but the forecast temperature for western Sydney is 40deg.


Is this going to be a problem? A quick Google tells me that concrete shouldn't be laid in very hot weather due to the concrete having higher early strength gain but lower ultimate strengths.


Hot Weather Tips




Or am I just being paranoid?

Originally Posted by Scouse

Long story, short.


A new 100mm slab is going on top of the original. It's been pressure washed but not to my liking - the engineer is happy enough though & has said so in writing.


The pour is happening on Friday but the forecast temperature for western Sydney is 40deg.


Is this going to be a problem? A quick Google tells me that concrete shouldn't be laid in very hot weather due to the concrete having higher early strength gain but lower ultimate strengths.


Hot Weather Tips




Or am I just being paranoid?

Shouldn't be too much of a problem, just keep the fresh concrete damp for the first few days if possible. The longer you can retain the water that keeps the concrete reaction going, the higher concrete strength you will ultimately get.

Cheers,

In the past few weeks, a footpath has been laid down our street - often on very hot days.

I walked along it today. I was surprised at how much cracking there was on the panels. I wondered whether the concrete quality was poor or whether it was due to the temperature.