Which I'm sure is related to Margaret. All these variations basically mean pearl in Greek. 'Peggy' was a vernacular term for a naval dockyard mess attendant and messenger who waited on the workers. I can't speak for the Royal Navy but for some reason it became translated to merchant ships.
SCCâs Cement Stabilized Sand is a clean and durable material made from a mixture of sand, cement and water that is used for backfill and bedding on a wide variety of civil projects. CSS is predominately used as backfill for retaining walls and storm sewer drainage.
Fine-grained sands are stabilized using the one-solution method of silicification, that is, using a solution of sodium silicate with phosphoric acid added (Figure 1). In loess soils only a solution of sodium silicate is injected into the ground. The role of the second solution is played by the salts of the soil itself.