GENERAL: Silicon sand’s main ingredient is silicon in the form of silicon dioxide (SiO2- silica). This corresponds to a group of minerals that are exclusively made of oxygen and silicon, the two ingredients that are in great abundance in the earth’s crust. Although its chemical formula is quite simple, SiO2 appears with different shapes and crystal structures. The most common form of silica crystal is Quartz, hence the name quartz sand.

Silica sand by THRAKON: QZS 700 is a silica sand that has undergone industrial process, cleaning and drying and is graded in different granulometries. The sand comes from rivers and contains no salts or foreign bodies. It is high in silica (SiO2) that gives the product increased hardness: 6 – 7 on the Mosh scale. Sand grain has an almost spherical shape that gives the product perfect low properties, and binds it with the connecting materials (cement, lime hydrate).

Granulometry:

Νο 1: 0,2 – 0,5 mm

Νο 2: 0,5 – 0,7 mm

Νο 3: 0,7 – 1,4 mm

Νο 4: 1,4 – 2,5 mm

Νο 5: 2,5 – 3,5 mm