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Pozzolanic Reaction
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Geliefert zwischen Do., 13.11.2025 und Fr., 14.11.2025
Details
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Pozzolanic reaction primarily occurs between amorphous siliceous materials (namely, pozzolan and pozzolana, a finely divided volcanic ash, rich in Obsidian, a mineral glass commonly found in lava) and slaked lime (calcium hydroxide) to form calcium silicate hydrates. It is the main reaction involved in the Roman concrete invented in the Ancient Rome and used to build, a.o., the Pantheon. As the density of CSH is lower than that of portlandite and pure silica, a consequence of this reaction is a swelling of the reaction products. This reaction may also occur with time in concrete between alkaline cement porewater and poorly-crystalline silica aggregates. This delayed process is also known as alkali silica reaction, or alkali-aggregate reaction, and may seriously damage concrete structures because the resulting volumetric expansion is also responsible for spalling and decrease of the concrete strength.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130956622
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Genre Chemie
- Größe H220mm x B220mm
- EAN 9786130956622
- Format Fachbuch
- Titel Pozzolanic Reaction
- Herausgeber Betascript Publishing
- Anzahl Seiten 112
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