"Understanding Your Home" by Building Inspector Mark Visser
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The name
Interlock stone driveways is a name to describe a method of installing concrete pavers or paving stones and the use of a special sand to fill the space between pavers. It is the sand that interlocks the pavers.

Applying a sealer to an interlocking stone driveway is an option. However, once installed it will be easier to clean up tire marks and oil spills while it helps preventing vegetation growth. There are many driveways sealers available so, it is important to read the labels and make sure that the sealer is recommended for concrete pavers.

Flared driveway end

Concrete Pavers or Interlock Stone driveways

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Concrete pavers or interlock stone driveways.

A single lane driveway is usually around 10 feet (3 m) wide and, where possible, with an apron of approximately 15 feet (4.5 m) wide. A wider and flared apron makes it easier for cars entering or leaving. The apron is the driveway section between the sidewalk and the street. A circular driveway has two aprons. For aesthetic reasons the apron can be made of a different material than the main driveway.
Adding drive way edging can also drastically change the overall appearance of your driveway.

Concrete pavers for driveways have an uniform thickness of 2 3/8" (6 cm). They come in a wide variety of colours, sizes, shapes and textures and offer unlimited opportunities to create a unique design. A well designed driveway will add beauty and value to any home.
New installations.
*Install a compacted aggregate base.
*Install concrete curbing to control movement of pavers and sand.
*Cover the compacted base with a 1" (25mm) layer of bedding sand.
*Install pavers and use a plate vibrating compactor to secure pavers into the bedding sand.
*Fill joints with polymeric sand (also called washed concrete sand) and use the compactor to force the sand deep into the joints. Do NOT use round or fine sand as this will work as little ball bearings and will, in short time, make a mess of your new driveway.
* Sweep surface thoroughly and spray it a few times with a mist of water. When the sand dries, it will get very hard and will "interlock" the pavers.
*Driveway can be used immediately after installation unlike other methods where the material needs curing. *You never have to "buy" another driveway as the interlocking stones can be easily removed and reinstalled.
Disadvantages. Weeds and grass will sooner or later take root in the paver joints. The growth of these unsightly intruders can be controlled by applying a generous dose of hot water or a water vinegar mixture. In shady areas moss may start to grow between the pavers which in a way looks pretty and rustic. Often homeowners do not attempt to remove the moss.

New installation using only one size pavers

Interlock stone driveway

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