Using pea rock concrete for grouting masonry
Using pea rock concrete for grouting masonry
(OP)
Folks,
Are there any problems with using a fluid pea rock concrete mix in lieu of grout for concrete masonry? Please let me know if there are any code issues in doing so? Is this okay once in a while or absolutely not?
Are there any problems with using a fluid pea rock concrete mix in lieu of grout for concrete masonry? Please let me know if there are any code issues in doing so? Is this okay once in a while or absolutely not?






RE: Using pea rock concrete for grouting masonry
The use of aggregate coarser than sand depends on the size of the grout spaces. The grout is not like concrete and must have a much higher slump to ensure full grouting and bond to rebars.
RE: Using pea rock concrete for grouting masonry
Will you be proportioning/designing the grout mixture or reviewing it?
RE: Using pea rock concrete for grouting masonry
Pea gravel concrete is not grout. What do you mean by "fluid"?... adding enough water to make it soupy? Not on my watch!
RE: Using pea rock concrete for grouting masonry
RE: Using pea rock concrete for grouting masonry
You must live in a good neighborhood. I can't tell you how many times I have received concrete mixes for grout mix submissions. I mean...low W/C, aggregates that are too large, A/E, superplasticizer to meet the slump.... These end up being 4, 5, 6000 psi mixes. I always insist on the basic C476 grout, but it usually takes pulling some teeth. Suppliers around here don't usually know what ASTM C476 is. And the masons around here won't acknowledge any difference between grout and concrete (they both just get hard).
RE: Using pea rock concrete for grouting masonry
High strengths are not reaaly good and the grout should be approximately the strength of the masonry units to be grouted.
Spats, you better be prepared to add water. - This is grount placed in masonry units and NOT concrete that is placed in non-absorptive forms.
Also, if the stregth is checked, follow the ASTM C1019 procedure and do not use non-absorptive (steel, plastic, waxed, etc.) molds.
RE: Using pea rock concrete for grouting masonry