Hardscape & Grading第 50 / 100 题
Before placing concrete pavers on a driveway, a compacted aggregate base is installed mainly to do what?
a.Provide a stable, load-bearing, well-draining foundation
b.Add color to the surface
c.Replace the need for edge restraints
d.Serve as the final wearing surface
解析
A compacted crushed-aggregate base spreads loads, resists settling, and drains water away from the pavers, forming the structural foundation of the pavement. Without proper base compaction, pavers rut and settle unevenly. A sand setting bed and edge restraints are added on top of this base.
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