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Posted by Big_Jake on June 10, 2007, 11:02 pm
> >Higher strength concrete usually is whiter than the run of the mill
> >type. When you're at the box store or whatever, read the labels on the
> >QuickCrete. 4500PSI will be lighter than 3000PSI, for example. Some
> >old time ready-mix suppliers used to deliver mix based on the number
> >of bags in a yard, i.e., 5 1/2 bag mix was deemed very good and was a
> >lighter shade cured than lesser grades.
>
> Most exterior flatwork and curb work I've seen involves spraying the finished
> work with what looks like a very watery white paint before the concrete sets.
> That provides a white finish.
>
> --
> "Tell me what I should do, Annie."
> "Stay. Here. Forever." - Life On Mars
Actually, that is likely a curing / sealing compound, and it will dry
clear. Also, since it locks moisture into the concrete, it is likely
to keep concrete DARKER for longer because it doesn't dry out as fast.
Most flatwork or curb work on streets is done with VERY rich concrete,
possibly more than a 6 bag mix, which will get very light when it
sets.
JK
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