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The simplest, and possibly the earliest, binding material used
was wet mud, and there are records of its use in ancient Egypt.
Another example of a binder from the distant past is the use of naturally
occurring bitumen by the Babylonians and Assyrians in their brick and
alabaster (gypsum plaster) constructions.
Ancient
Egyptians also used Calcined impure Gypsum.
Early Greeks & Romans mostly used cementing
material obtained by burning Limestone. Roman mortar was very
hard & superior due to thorough mixing & long continuous ramming.
Lime is often considered as the "First Cement” of the
mankind.
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