What is Navvy Jack used for?
A pre-mix of sand and gravel that is ideal for mixing concrete, which is cheaper then purchasing small bags of the ready-to-use concrete. Simply mix cement and water to make your desired concrete slump and strength.
Is Navvy Jack the same as road base?
Navvy jack is a blend of sand and gravel similar to road base. It has many uses, including in the mixing of concrete, as a foundation underneath driveways, paving stones and retaining walls, and as a fill underneath topsoil or other landscaped surfaces.
How do you make a Navvy Jack?
Navvy Jack is a perfect mixture of 3/4″ clear crush, washed sand and pea gravel. Simply mix water, portland cement and Navvy Jack to make your desired concrete product.
What is a road base?
What is Road Base? Base materials can be granite roadbase, crushed gravel or limestone, which are then compacted to form a hard surface. They are frequently used in the construction of roads, paving substrates, hard stands, parking areas, footpaths and driveways.
Why is cement often called Portland cement?
The inventor Joseph Aspdin, of England, patented the basic process in 1824, naming it for the resemblance of the cement when set to portland stone, a limestone from the Isle of Portland. …
How thick should a road base be?
For roads and parking lots — heavy traffic sites — 4 to 6 inches of depth is required. For patios, driveways and foundations, 2 to 3 inches of depth will suffice. Road base is delivered in square yards.
Is road base good for a driveway?
Road base is an ideal material to be used for driveways and requires little maintenance. If heavy rains move through the area, it is possible some of the driveway gravel will be washed away.
Why does Roman concrete last so long?
Roman concrete was based on a hydraulic-setting cement. It is durable due to its incorporation of pozzolanic ash, which prevents cracks from spreading. By the middle of the 1st century, the material was used frequently, often brick-faced, although variations in aggregate allowed different arrangements of materials.