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Hot take: the new library plaza in Springfield made me rethink exposed aggregate
I was checking out the finished work on the Springfield Public Library plaza last Friday, and they used this dark gray exposed aggregate with really fine, almost black pebbles. Always thought it looked too rough for public spaces, but the way they sealed it gave it a smooth, wet look that felt great underfoot. Has anyone else worked with that specific mix from Granite State Materials, batch #1147? Curious if it holds up to salt better than the standard stuff.
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aaron_mitchell2mo agoTop Commenter
Is it weird that my main takeaway from that plaza is now a deep fear of dropping my keys on it? I spent a good five minutes last week trying to pry a quarter out of a crack in my own patio, which is that same rough style but not sealed nice like you said. My mix definitely wasn't batch 1147, it was more like batch "leftover bags from the discount pile." It already looks like it went through a wood chipper. That smooth finish they used sounds like it would save my poor knees a lot of trouble.
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brianreed2mo ago
Been there with the discount bag concrete, it's a special kind of awful. What finally worked for my crumbling walkway was a brush-on concrete sealer from the hardware store. It didn't magically fix the cracks, but it locked all the loose grit in place and made the surface way less aggressive. Stuff still falls in the gaps, but at least my keys don't get scratched up just lying there.
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the_hayden1mo ago
Pile on all day, that smooth sealed finish is a game changer. Dropped my phone on a rough aggregate walkway last month and it scratched the case up something fierce. I tried sealing some old concrete around my fire pit with a brush-on sealer from the same aisle brianreed mentioned and it made a huge difference. The surface went from "eat my skin" to actually kinda pleasant to walk on in sandals. Wish I had known about that specific batch from Granite State before I built my whole patio with the cheap stuff, now I'm stuck with a constant dirt trap.
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