Had a concrete with integral color patio poured on Saturday. On Monday morning we noticed small (1/8" - 1/4") black holes with oiling substance in middle. They are at the surface and and when the oily substance is removed the depth is about an 1'8" deep with a light brown ring around the hole and the black stuff feels gritty. The cement company said it was the sand base and the concrete company the we hired to install the patio said that it was something in the mixture or inside the truck was contaminated. Any ideas anyone, we need some help!!
Black Holes on surface of new patio
Grits
1 - 3 of 19 Posts
think mort's on the right path - not enough mixing time, wet powder rather than liquid color, contaminated drum, OR dirty stockpiles,,, the other pic shows why 1 should NEVER allow the driver to spit his chewing tobaccy into the drum 
either way get the conc co's rep out to look at it :yes:
doubt its rust from mesh
either way get the conc co's rep out to look at it :yes:doubt its rust from mesh
1 - 3 of 19 Posts
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
