The polished look of Courtstone brings a luxurious, old-world elegance to driveways and walkways, with Ultima™ which provides up to four times the strength of conventional poured concrete. Using Reala™ Technology, the unique shapes of Courtstone were cast from real European cobblestones, but manufactured with a consistent base for efficient installation and superior interlock. It’s a look that has remained popular for centuries. The stone’s non-linear shape means it’s possible to create smooth looking curves without cutting Courtstone. This, in combination with its rich color palette, also makes Courtstone a frequent choice for borders and banding accents.
Cobblestone style meets high technology. Made with Ultima™ Concrete Technology which is up to 4 times stronger than conventional poured concrete, Courtstone is the ultimate driveway and accent paver. Each cobble is uniquely formed to closely resemble authentic European cobblestones.
RECOMMENDED BASE STABILIZATION – one layer of DriveGrid™" stabilization grid between subgrade and base material. Recommended depth 8” to 10” below pavers for maximum stability and performance. Use under Standard Base or Permeable Base.
STANDARD BASE – Min. 6” – 8” of ¾” Crusher Run gravel (any road base standard in accordance with ASTM-D2940) compacted to 98% Standard Proctor Density (SPD).
STANDARD BEDDING COURSE – 1” thick of coarse sand– in accordance with ASTM-D2940 screeded over base.
ALTERNATIVE PERMEABLE BASE – Min. 6” – 8” of ¾“ clear open-graded stone compacted to achieve full particle lock-up and consolidation. (Clear open-graded does not compact but does consolidate slightly by rattling the particles together.)
ALTERNATIVE PERMEABLE BEDDING COURSE –1” thick of 1/4” clear open-graded chip stone – (ASTM No. 8) screeded over base.
SPECIAL NOTE: CONCRETE DIRECT OVERLAY –In some areas of the country and in some applications pavers are very successfully placed directly over concrete. Concrete as a base is in itself quite strong, but it can affect the structural integrity of the paver particularly in vehicular applications, where the concrete below is sub-par. The following considerations must be taken into account to insure that the concrete below the surface is ideal:
JOINTING MATERIAL AND JOINT STABILIZATION
All sands must meet ASTM C144 or C33 Specifications. For best appearance and optimal performance,, keep jointing materials approximately 3/8” below the surface of the paver.
Best Option: Any polymeric sand that can span a joint up to 1” without breaking down. Always follow manufacturer’s application specifications and requirements.
HANDLING – This product has no special handling requirements.
EDGE RESTRAINT - Always install an edge restraint around the perimeter of any paver installation not restrained by building structures. Spike-in edge restraints come in plastic and metal and work well for most applications. A concrete curb or a sub-surface concrete wedge can also be installed to retain the edge.
PAVER COMPACTION - Always use a protective polymer pad on the bottom of your compactor when doing the final compaction of the pavers. An alternative is to use a rubber-roller compactor for the final compaction.
CLEANERS – Any cleaner specifically designed for pavers may be used for color restoration or general cleaning. Follow manufacturer’s dilution rates and application procedures. Always test a small area to make sure the results are as expected.