Bulk Aggregates for Patios in Sterling, AK

Planning a patio, a driveway or a drainage run in Sterling means picking the material that goes under it. Alaska Rock Supply sells gravel and aggregate delivery in Sterling, AK, and D-1 base course is the graded base most of that work starts from.

Sterling sits in Kenai Peninsula Borough, on ground that gives up water quickly in one layer and holds it in the next. What you put down first decides how the finished surface behaves.

Ground and Conditions in Sterling

Across the Cook Inlet basin, from the Anchorage bowl to the Kenai, the ground runs in two layers that behave in opposite ways. Coarse outwash sand and gravel sits at the surface over silty clay and clayey silt laid down in a glacial marine setting.

Water moves through the outwash fast until it hits the clay, and then it stops. Low ground and the toes of slopes hold water that has nowhere to go, and spring breakup drops a winter of snow onto ground that is still partly frozen.

That is where a thin base shows its weakness first. Flatwork and gravel drives built too thin lift and heave as the ground cycles through freeze and thaw rather than freezing once and staying frozen.

The clay will not compact once it is wet, and thawing ground in April will not compact either. Base, drive and hardscape work runs from breakup in spring to freeze-up in autumn, and the timing matters as much as the material.

Erosion follows the same pattern: bank cutting on the glacial rivers and creeks when breakup peaks, bluff retreat where coarse outwash sits on the clay, and rill cutting across bare graded ground before it is covered.

Any published footing depth belongs to the building official who set it, so check with the local official for your footing depth before you build.

Materials for Sterling Projects

Bedding is the part of a patio or flatwork job that decides how the surface above it sits. The material under pavers has to be graded, clean and able to be shaped to a true plane.

It goes under driveways, parking pads, shed and building pads and the compacted layer under flatwork.

C-1 is the coarser grading of the same table, used where a deeper structural layer is wanted.

Stone Screenings are the crusher fines that pass the finest screen. They bed pavers and pack into the joints, and they give a path a firm top that stays put underfoot.

Screened Sand, also called fill sand or bedding sand, is a clean fine material for bedding under pipe and flatwork and for paver setting beds.

Mason Sand is the finest washed sand. It is for mortar, brick and block work and for a smooth paver setting bed where the surface has to finish flat.

Drain Rock, also called washed rock or 3/4 clean, is clean stone with the fines taken out. Water moves through it instead of sitting, which suits French drains, foundation perimeter drains, drywells and downspout runs.

Filter blanket, Subsection 703-2.08, is another name for a graded drainage layer.

Pit Run is unscreened gravel as it comes out of the pit, used for bulk fill and raising a pad before a base course goes over it.

Delivery to Sterling and the Surrounding Area

Order online and choose a quantity by the ton or by the yard. Each product page has a calculator, and sizing the load before you order keeps the quantity close to the job.

A dump truck tips the load on site in one pile, so it is worth thinking about where that pile should land before the truck arrives. Sterling sits in Kenai Peninsula Borough, and delivery covers the surrounding area, including Kenai, Soldotna, Homer, Seward and Anchor Point.

Order D-1 Base Course and Bedding Material for Sterling

Sort the quantity first, then place the order online and pick a delivery date. Alaska Rock Supply delivers bulk aggregate to Sterling and the surrounding part of Kenai Peninsula Borough, one tipped load at a time.

Start on the product page for the material your job calls for.