Joseph Davidovits geopolymer hammer concretion floor 91 balcony Austrian Gelitin B thing BB 18 WT..

First published at 01:27 UTC on June 15th, 2019.

waptek

waptek

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In the 1950s, Viktor Glukovsky, of Kiev, USSR, developed "soil cements & soil silicate concretes" & Joseph Davidovits coined the geopolymer term in 1978 , & claims that the Tiwanaku/Pumapunku megaliths are artificial geop...

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