5 Questions
What is the unique property of gypsum mentioned in the text?
It can easily be shaped and moulded when water is added
How is low burning type gypsum manufactured?
By heating dehydrated gypsum to about 160°C
What is the characteristic of extra strong gypsum according to the text?
It is used for manufacture of moulds
At what temperature is the raw gypsum material heated during the manufacture of gypsum?
Up to 200°C
What happens when heated, according to the text?
The chemically bound water is lost totally
Study Notes
Gypsum Properties and Manufacturing
- Gypsum has a unique property of losing ¾ of its water content when heated
Low Burning Type Gypsum Manufacturing
- Low burning type gypsum is manufactured by heating raw gypsum material at a higher temperature
Extra Strong Gypsum Characteristics
- Extra strong gypsum has a higher compressive strength than regular gypsum
Gypsum Manufacturing Process
- Raw gypsum material is heated at a temperature of 150°C during manufacturing
- When heated, raw gypsum material loses its water content and turns into a hemihydrate or anhydrous form
Test your knowledge about gypsum and lime with this quiz. Learn about the properties and uses of gypsum as a non-hydraulic binder and its unique ability to mould when heated and shaped.
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