WebJan 21, 2024 · It is a blend of tiny crushed stone and stone dust. It usually has more dust in it than smaller stones when compared to other types of top-level gravel. As it settles, the dust sinks into the space between the rocks, creating a smooth and solid surface. This type of gravel does not drain well in the least. WebSep 20, 2024 · Crushed gravel, being porous, allows water movement both ways. Concrete can trap water that get in between the post and the concrete, and the wood can get compressed over time rendering the post wobbly in the concrete. – Jonathan J Oct 27, 2024 at 18:55 Absolutely correct!
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WebDec 16, 2010 · Somehow the edge you get from the crushed concrete are very sharp, not sure if this is inherit to the crusher. Be sure to compact them well. I never had this problem using the crush rocks. XR Dec 16, 2010 / Recycled concrete vs gravel #9 stravis Gold Member Joined Apr 17, 2009 Messages 258 Location Henderson, GA Tractor WebJun 10, 2024 · When bought in bulk, seashells are on the more affordable end of the spectrum: comparable to crushed gravel; less than asphalt, concrete, or stone. Clamshells seem to be the least expensive, offered at about $40 per cubic yard, or $50 per ton. We priced crushed oyster shell at $385 per ton. The Atlantic coast is the primary … ddot streetlight policy and design guidelines
Should I set fence posts in dirt, gravel, crushed rock, or …
WebApr 9, 2024 · Here are a few facts to consider regarding the drying time of concrete: Generally speaking, within 24 to 48 hours after pouring, concrete can hold its shape and is dry enough for the supporting framework and forms to be removed. At this time, concrete is hard and set enough to support light foot traffic. WebSep 17, 2024 · Malcolm, I had assumed 4" was sufficient. If it needs 6", I will comply, but at $675 per 22ton load, it hurts. :) Also, when you say - [top dress the 6" below the slab with a drainable fill] - you are talking about the 3/4" gravel between the ground and the concrete, or in my case between the ground and Fomular 250 25 psi foam and then concrete. WebCrushed concrete is concrete that has been torn up and pulverized into tiny pieces. It costs around the same as crushed asphalt, though you may be able to find it for a bit less. Crushed concrete has basically all the same properties as crushed asphalt, including permeability. Crushed concrete is different in color, however. ddotty face