silicate-based cement
21Talc — magnesium silicate redirects here. For the synthetic form, see synthetic magnesium silicate. Talc Three pieces of Talc. General Category Silicate mineral …
22Alite — is the mineralogical name for Tricalcium Silicate, Ca3.SiO5. It is the major, and characteristic, mineral in Portland cement.Composition and structureThe alite found in Portland cement differs in composition from simple tricalcium silicate. It is …
23rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …
24Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …
25mineral deposit — Introduction aggregate of a mineral in an unusually high concentration. About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… …
26Graphite — For other uses, see Graphite (disambiguation). Graphite Graphite specimen General Category Native element mineral …
27Mineral CSA (brand) — Mineral CSA is a finely ground calcium silicate feedstock produced by the U.S. based company Harsco Minerals, which provides a solution for correcting acidic conditions and managing toxic metals associated with acid mine drainage (AMD). Mineral… …
28Types of concrete — There are many types of concrete, variations of installation, composition, finish and performance characteristics. A highway paved with concrete …
29Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
30Africa — /af ri keuh/, n. 1. a continent S of Europe and between the Atlantic and Indian oceans. 551,000,000; ab. 11,700,000 sq. mi. (30,303,000 sq. km). adj. 2. African. * * * I Second largest continent on Earth. It is bounded by the Mediterranean Sea,… …
