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In... 1983, with Joseph Sawyer as head of Lone Star's research laboratory... I started to develop early high-strength geopolymeric binders and cement… - Joseph Davidovits
" "In... 1983, with Joseph Sawyer as head of Lone Star's research laboratory... I started to develop early high-strength geopolymeric binders and cements based on based on both geopolymeric and hydraulic cement chemistries. Within one month Lone Star Industries Inc. formed the development company, PYRAMENT... exclusively dedicated to... this new class of cement. ...It was discovered that the addition of ground blast furnace slag, which is a latent hydraulic cementitious product, to the poly(sialate) type of geopolymer, accelerates the setting time and... improves compressive and flexural strength. The first Davidovits and Sawyer patent was filed in... 1984... The corresponding European patent... in 1985... and these... disclose our preliminary finding...of 1983. Geopolymer cements are acid-resistant cementitious materials with zeolitic properties that can be applied to long-term containment of hazardous and toxic wastes.
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About Joseph Davidovits
(born 23 March 1935) is a French materials scientist known for the invention of chemistry. He posited that the majority of structural blocks of the are not carved stone but a form of limestone or man-made stone. He holds the .
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Temperatures can be raised with energy released during exothermic... reactions. Copper and are commonly located in close proximity... A mixture of ... ...and ... ...heated to only to 700 °C ...automatically reaches a temperature, through a heat producing chemical reaction, that is close to that for extracting copper. The addition of a flux, which in Egypt was a native salt called (), lowered the fusion point sufficiently for copper extraction. Silver can be smelted similarly.
[I]f they over exploited the palm trees in the production of the ashes... then they got into an ecological disaster because... [i]f there is no more palm trees, there is no more agriculture, and... the end of the pyramid construction. ...[T]his technology, even though it was a sacred one, was dangerous.
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The science that made the pyramids possible was chemistry, or, more precisely... alchemy. ...[T]he legendary Philosopher's Stone represents the last misinterpreted vestiges of the alchemical science that flourished during the Pyramid Age ...Technically alchemy encompasses historical chemical developments. ...There were great alchemical achievements during antiquity.
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