Good point. Look for "ASTM C1107" on the bag to be
sure. Turns out the product the box stores carry is
non-shrink:
Home Depot Sakrete SKU 451137 is non-shrink.
Lowe's Quikrete on the shelf is also non-shrink.
73 Jim K6OK
>> Home Depot has "construction grout." Sakrete or
>> Quikrete brand are fine, both are rated at
>> 8000psi or better, depending on how thick you
>> mix it.
> Tower specs call for non-shrink grout. Generic
> construction grout ain't it.
>
>Steve K7LXC
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