Hi
Getting quotes for a driveway. Very gentle slope down towards street.
Spoke to two different concreters. One sprays the coloured powder on top once concrete has been laid.
Other concreter mixes colour in the concrete itself and just lays it as normal !
First guy says the powder that they spread on top increases the strength of concrete from about 20MPa to 40MPa. Is this right ... ?
Which way to go ?