Building Materials
Rapid hardening cement attains early strength due to

Excess percentage of gypsum
Lesser proportion of lime grounded coarser than normal cement
Lesser proportion of lime grounded finer than normal cement
Larger proportion of lime grounded finer than normal cement

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Building Materials
Putty is

Made with finely powdered chalk and linseed oil
Softened by a solution of pearl ash and quick-lime soaked in water
Used for fixing glass panes
All listed here

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