336-431-5852
aceavant@aceavant.com
5358 Poole Rd, Archdale, NC 27263
336-431-5852
aceavant@aceavant.com
5358 Poole Rd, Archdale, NC 27263
Crushed stone, road base, and gravel base installation for roads, building pads, and site development across North Carolina
Properly compacted aggregate base prevents settling under pavement, slabs, and structures.
GPS and laser grade control ensures base course is installed at the correct depth across the full site.
We select crushed stone and gravel base material matched to the traffic and load requirements of each application.
Gravel compaction is tested and recorded before paving or concrete crews take over the surface.
Aggregate base is graded to drain properly, reducing water retention beneath pavement and slabs.
A correctly installed road base is the single biggest factor in long-term pavement performance.
Stone base is phased and handed off to paving and concrete crews without gaps in the schedule.
Stone base installed alongside fine grading and excavation by the same team and point of contact.
Stone base is a compacted layer of crushed stone or gravel placed between the finished subgrade and the surface above it, whether that surface is asphalt pavement, concrete flatwork, a building slab, or a gravel road. Its job is to distribute load, provide drainage, and give the surface above it a stable, uniform foundation. Every road, parking lot, and building pad built on native soil needs some form of aggregate base beneath it, and the quality of that base determines how well the surface above it performs over time.
Aggregate base and base course refer to the same general scope. Both describe the compacted granular layer installed beneath a finished surface. Base course is the term most commonly used in road and pavement construction, while aggregate base is the broader term used across paving, concrete, and building pad applications. In practice, the material and installation method are the same, but the terminology varies by spec and application.
Crushed stone and gravel base are both used as aggregate base materials, but they behave differently under load and compaction. Crushed stone is angular, which means the particles interlock under compaction and resist movement under load. Gravel is typically rounded, which makes it easier to work with but less stable under heavy traffic loads. For road base, building pads, and any application with significant traffic or structural loading, crushed stone is the standard choice. Gravel base is more common in drainage applications and lighter-duty surfaces.
Stone base is required beneath virtually every paved surface on a commercial or industrial site. Parking lots, access roads, driveways, loading docks, building slabs, and equipment pads all need a compacted aggregate base layer to perform correctly. The required depth and material type depend on the soil conditions, the anticipated load, and the pavement or surface specification. Sites with weak or expansive native soils may require deeper base sections or soil stabilization before the aggregate base is placed.
Before the stone base is placed, we verify that the fine graded subgrade is at the correct elevation, properly compacted, and free of soft spots that would undermine the base layer above it.
We source crushed stone or gravel base material matched to the project specification, coordinating delivery to keep pace with installation without overloading the site with stockpiled material.
Base material is spread and shaped to the depth and surface grade called out in the plans, using motor graders and GPS grade control to hold accurate depth and cross slope.
The base is compacted in lifts using vibratory rollers, with compaction testing performed to verify density meets geotechnical requirements before the next lift or the finished surface is placed.
Surface elevations are checked against the civil drawings before we hand off to paving or concrete crews.
Road base is the aggregate base layer beneath an asphalt or concrete road surface. It is one of the most important variables in pavement longevity. A road built on a properly compacted, correctly graded road base will outlast a road built on a thin or poorly compacted base by years, regardless of the pavement thickness above it. We install road base to NCDOT and project specifications, with compaction testing and grade verification before paving begins.
Building slabs and equipment pads also rely on a compacted stone base beneath them. The aggregate base layer under a concrete slab provides a stable, well-draining surface for the concrete to be placed on, reduces capillary moisture movement from the subgrade, and helps distribute load from the slab to the native soil below. Base depth and material for building pad applications are typically specified by the structural or geotechnical engineer, and compaction documentation is often required before concrete placement can begin.
Compaction is what turns a layer of loose aggregate into a stable structural base. Without adequate compaction, the stone base will settle and shift under load, leading to pavement cracking, edge failures, and uneven surfaces. We compact aggregate base in controlled lifts using vibratory roller equipment and verify density using nuclear density gauge or other compaction testing methods. Compaction test results are documented and available for engineering and project records.
Base depth is determined by the load the surface will carry, the strength of the native subgrade, and the pavement or slab specification. Lightly loaded parking areas may require as little as four to six inches of aggregate base, while heavy truck roads, loading docks, and equipment pads may require twelve inches or more. We work from the civil and geotechnical specifications on each project rather than applying a standard depth across the board.
Soft subgrade beneath the base, inconsistent compaction between lifts, and base material that doesn’t meet specification are the most common stone base problems on commercial projects. We verify subgrade conditions before placing base material, compact in controlled lifts, and source material that meets the project aggregate gradation spec. Catching these issues before paving begins is far less expensive than addressing them after the surface has been placed.
Stone base installation sits between fine grading and paving on the construction schedule, and both trades are typically waiting on it. We work closely with GCs and paving contractors to phase base installation area by area, so sections can be paved as soon as the base is compacted and verified rather than waiting for the whole site to be completed.
At project completion we verify base surface grades against the civil drawings, confirm compaction test results meet specification, and walk the site with the GC or paving crew before handing off. Compaction documentation and grade verification records are available on request.
Ace Avant has installed stone base and aggregate base on commercial, industrial, and road projects throughout North Carolina, working alongside paving contractors, concrete crews, and GCs who need a base that is compacted, graded, and ready when they show up.
Stone base is a compacted layer of crushed stone or gravel placed beneath asphalt, concrete, or building slabs to provide load distribution, drainage, and a stable foundation for the surface above it.
They refer to the same scope. Base course is the term commonly used in road and pavement construction. Aggregate base is the broader term used across paving, concrete, and building pad applications.
Crushed stone is angular and interlocks under compaction, making it more stable under load. Gravel is rounded and easier to work with but less suitable for heavy traffic applications. Crushed stone is the standard choice for road base and structural applications.
Base depth depends on the load, the subgrade strength, and the surface specification. Typical commercial parking areas use four to six inches of aggregate base. Heavy traffic roads and equipment pads may require twelve inches or more.
Compaction turns loose aggregate into a stable structural layer. Without it, the base will settle under load, causing pavement cracking, surface failures, and drainage problems.
A thicker base section can help bridge over a weak subgrade, but it is not a substitute for addressing soft or unstable subgrade conditions. Soft areas should be stabilized or excavated and replaced before base installation begins.