air-blown mortar


Concrete or mortar which is pumped through a hose and projected at high velocity onto a surface.
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References in classic literature ?
For that I have no concern," said the king, who was as tolerant as Akbar in matters of belief.
Beside it is written, in very rough and coarse characters, 'The sign of the four,--Jonathan Small, Mahomet Singh, Abdullah Khan, Dost Akbar.