POZZOLANA Meaning and
Definition
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Pozzolana is a type of volcanic ash that has a highly reactive nature when it comes into contact with calcium hydroxide, commonly known as lime. It is primarily used as a material in construction, particularly in the production of cement and concrete.
Derived from the Italian word "pozzuolana," which refers to a sand found near Pozzuoli, Italy, where this material was first discovered and used during ancient times, pozzolana has been utilized for centuries due to its beneficial properties. When mixed with lime and water, it undergoes a chemical reaction known as pozzolanic reaction, resulting in the formation of calcium silicate hydrates, which contribute to the hardening and strength of cement.
The inclusion of pozzolana in cement and concrete mixtures offers several advantages. It enhances the workability of the material, improves the long-term durability and resistance to chemical attack, and reduces the heat generated during the setting process. Additionally, pozzolanic materials, such as pozzolana, can serve as a partial replacement for Portland cement, reducing the environmental impact of concrete production by lowering carbon dioxide emissions.
Pozzolana can vary in color, ranging from light grey to dark grey, depending on its source and specific mineral composition. The quality and reactivity of the material can be influenced by factors like its particle size and chemical composition. As a result, pozzolanas from different regions may possess varying characteristics and suitability for specific construction applications.
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A volcanic ash or sand from Pozzuoli, near the Bay of Naples, largely employed in the manufacture of Roman or hydraulic cement.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for POZZOLANA
- oozzolana
- lozzolana
- -ozzolana
- 0ozzolana
- pizzolana
- pkzzolana
- plzzolana
- ppzzolana
- p0zzolana
- p9zzolana
- poxzolana
- poszolana
- poazolana
- pozxolana
- pozsolana
- pozaolana
- pozzilana
- pozzklana
- pozzllana
- pozzplana
Etymology of POZZOLANA
The word "Pozzolana" is derived from the Italian term "pozzuolana" which itself comes from the Latin "Puteolanus". It originates from the name of the town Pozzuoli in Italy, located near Naples. Pozzuoli was renowned for its volcanic ash, which was used as a building material in ancient Roman construction. This ash, known as "pozzolana", consists of fine volcanic ash and tuff, and when mixed with lime, it forms a strong and durable cement. The term "pozzolana" became widely used to describe similar materials found in other regions, ultimately referring to any volcanic ash utilized for its cementitious properties.
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