#3 Open-graded base (ASTM No. 57) (3/4” Clear) - often used in permeable jobs, shows a lot of benefits as a base material. Permeable bases help reduce heaving, which helps with project longevity.
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What does open-graded mean for worksite efficiency? Does not hold water, so can work right after a rainfall. Less compaction required. Air voids between aggregate helps protect against frost heave and less settlement so fewer callbacks.
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Reduces weed growth: there is nothing for roots to root into because there is no sand or powder… no sand = easier site cleanup! #landscapehardscapesummit
