Geopolymer Concrete and the Egyptian Pyramids

Geopolymer Concrete, Egyptian Pyramids, and a New Way Forward for Sustainable Masonry! Watch the full version by Fehmi Krasniqi here: https://lnkd.in/gvU-xDck and please subscribe to their YouTube page. 😊 Spoiler alert: We may be wrong about how the ancient Egyptians built the Great Pyramids. Decades of schoolchildren are taught the prevailing theory - the pyramids were constructed from enormous blocks of solid stone, cut by hand from far away quarries and hauled across the searing desert sands. In the 1980s, a French materials scientist named Joseph Davidovits proposed a different theory - the Egyptians didn’t haul the blocks to the pyramids but rather made the blocks one at a time in place on the pyramids. Davidovits suggested that the blocks were formed by pouring an ancient concrete - he called it geopolymer - into wooden molds. A fraction of the laborers would be needed to haul sacks of moist geopolymer concrete to wooden forms placed exactly where each block was needed. Joints between poured concrete block would always be perfectly accurate as a compacted moist mixture hardens against neighboring blocks. If you found the content informative, you may Follow me by clicking to Mehrtash Soltani, Ph.D for more! Text Source: Refer to first comment ....................................................................... All rights and credits are reserved to the respective owner(s). If you are the main copyright owner rather than the one mentioned here of this content, contact me to add you as reference or content removal. Check please #mehrtashsoltani for the educational and practical content in civil engineering. Voir la traduction