Roughcast or pebbledash is a coarse plaster surface used on outside walls that consists of lime and sometimes cement mixed with sand, small gravel and often pebbles or shells. The materials are mixed into a slurry and are then thrown at the working surface with a trowel or scoop.

What is pebble dashing?

Pebbledash is a form of render used for the external walls of a building in which the top coat is textured by pebbles and stone fragments to create a rough finish. This is similar to roughcast rendering in which larger stones are applied mixed into the mortar before being applied to walls. ...

Why do I pebble dash the toilet?

Pebble, or pellet, bowel movements aren't usually a reason to worry, but they likely mean stool is moving through your intestines at a slower pace than usual. While they may be small, these hard lumps of stool often hard to pass. They're also are one of several symptoms that occur with constipation.