Lichen sclerosus and lichen planus are fairly common, non cancerous skin conditions. They can affect different parts of the body, but commonly affect the vulva. When they affect the skin of the vulva, theyâre known as vulval LS or LP.
A gap-graded soil is a soil that has an excess or deficiency of certain particle sizes or a soil that has at least one particle size missing. An example of a gap-graded soil is one in which sand of the No. 10 and No. 40 sizes are missing, and all the other sizes are present.
One of the benefits of coarse sand is that it is much easier to work with and is better suited to hardscaping products and materials. This type of sand is generally used for paver applications and sand grouting. Play sand is a sand type which is fine, soft, washed and white in color sand granules.Most other types of sands have silica traces in them whilst play sand does not have any silica traces, as this type of sand is very safe for children to play in.Play sand is widely used in recreational parks, child care centres in the play structure arenas or a sand box.oarse sand is much easier to work with then any other sand type. For the building industry, brick layers and cement renders rely heavily on sand materials. The importance of sand materials for building purposes is the required mixture of mortar and stucco for laying the bricks.