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The following knowledge were lost:
Old Romans discovered new puzzolain material, when no volcanic ash was available they replaced it with brick dust.
They made lime mortar containing crashed brick and
material. The Romans called this material cocciopesto.
Germany 1860 - use of crushed brick in concrete
Germany 1946 - use of recycled brick in concrete
The following knowledge were lost:
Old Romans discovered new puzzolain material, when no volcanic ash was available they replaced it with brick dust.
They made lime mortar containing crashed brick and
material. The Romans called this material cocciopesto.
Germany 1860 - use of crushed brick in concrete
Germany 1946 - use of recycled brick in concrete
The following knowledge were lost:
Old Romans discovered new puzzolain material, when no volcanic ash was available they replaced it with brick dust.
They made lime mortar containing crashed brick and
material. The Romans called this material cocciopesto.
Germany 1860 - use of crushed brick in concrete
Germany 1946 - use of recycled brick in concrete
