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Aino Heikkiken

HEIKKIKEN, Aino, Finnish engineer and entrepreneur. An expert on concrete compositions and holder of several patents on the subject. She manufactured concrete for home-repair purposes. The most valuable concept was conversion of ash from coal or peat burning into a component of concretes. This took a readily available waste product and converted it into a very useful binding agent for certain types of concrete. From 1988 the process was much used in Finland.

Engineer Inventor

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