The Concrete Masonry & Hardscapes Association (CMHA) has released its new FAQ: “Installing Standard Interlocking Concrete Pavers on Open-Graded Aggregates,” establishing a research-backed position for ...
The joints are filled with crushed stone. This is installed over a deep, open-graded aggregate base, with a base layer of finer crushed aggregate that acts as a reservoir, slowing the passage of water ...
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