Reinforced concrete footing cracks/ghosting

[lucy778899]

Hello all

We recently, started our side extention. Engineer specified a reinforced concrete footing with rebar and mesh. We poured concrete a few days ago and are seeimg the mesh squares telegraphing through to the top of the concrete now its dry. These are hairline in most case but a few are wider and more prounced but dont appear deep.

Builder says its normal and due to recent heat and settlement.

Would anyone know if this is normal or should we worry?

Any thoughts will be appreiated. I'll get some.pics up later.

TIA

 

[noseall]

Hello all

We recently, started our side extention. Engineer specified a reinforced concrete footing with rebar and mesh. We poured concrete a few days ago and are seeimg the mesh squares telegraphing through to the top of the concrete now its dry. These are hairline in most case but a few are wider and more prounced but dont appear deep.

Builder says its normal and due to recent heat and settlement.

Would anyone know if this is normal or should we worry?

Any thoughts will be appreiated. I'll get some.pics up later.

TIA

Foundation concrete is usually thick enough for this to not be a concern. Floor slabs etc, are different in that respect (thinner) and need more care when laying in extreme temp's.