Building Materials
The thermosetting plastic

At 127°C to 177°C permanently set and further application of heat does not soften it
Becomes rigid when moulded at suitable pressure and temperature
Chars at 343°C
All listed here

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Building Materials
Rapid hardening cement attains early strength due to

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

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