Gravel Sand Supply Delivery | Landscape Gravel for Driveways. Gravel and rubble have similarities but also key differences. Both consist of broken fragments of stone, but rubble is less uniformly sized and often consists of larger, jagged pieces. Rubble is a byproduct of demolition work while gravel is a processed material. In terms of size, gravel typically ranges from 2mm to 64mm in diameter, with well-graded mixtures containing a range of sizes. Rubble on the other hand includes much larger fragments, often over 100mm in size and irregular in shape. Rubble pieces tend to be jagged with sharp edges since they result from demolition rather than processing. Gravel is produced through a crushing and screening process to create material suitable for specific applications.
Because of these differences, rubble is generally not suitable for applications that require a well-graded aggregate.