What is the ratio of the building material that is named for the Latin word "crushed" and sand used to stabilize buildings?
Sandcrete Sandcrete is a yellow-white building material made from a binder (typically Portland cement), sand in a ratio of circa 1:8, and water. Sometimes other ingredients may be added to reduce the amount of expensive Portland cement such as pozzolanas and rice husk ash. Sandcrete is similar but weaker than mortar, for which the ratio is circa 1:5. "Soil cement" and "landcrete" are similar materials but use other types of soil and hydraform blocks which are compressed, stabilized, earth blocks.
Silicon dioxide Silicon dioxide, also known as silica (from the Latin "silex"), is an oxide of silicon with the chemical formula Si O , most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as synthetic product. Notable examples include fused quartz, fumed silica, silica gel, and aerogels. It is used in structural materials, microelectronics, and as components in the food and pharmaceutical industries.