Egypt's Pyramids Packed With Seashells (Not Concrete)

Discovery Channel ^ | 5-1-2008 | Jennifer Viegas

[SunkenCiv]

This photo shows a sample of the casing from the ascending passage of Kheops great pyramid, given by the French egyptologist Jean-Philippe Lauer in 1982 to J. Davidovits. Now, the cross section is characterised by the presence of organic fibers and air bubbles that do not exist in normal situation, especially in a 60 million years old limestone from the eocene era

[SunkenCiv]

A new angle on pyramids: Scientists explore whether Egyptians used concrete
Boston Globe | April 22, 2008 | Colin Nickerson
Posted on 05/01/2008 11:04:55 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/chat/2010105/posts

[wafflehouse]

so was mount everest

[poobear]

When I visited there I remember the walls and grounds having those ‘little shells’ in them. So I looked it up. Below is a brief of the initial construction. But you are correct. Lots of renovations. It would never last thousands of years. Thanks for your post.

“Construction

The Castillo de San Marcos The Castillo is a masonry star fort made of a stone called “coquina”, literally “little shells”, made of ancient shells that have bonded together to form a type of stone similar to limestone. Workers were brought in from Havana, Cuba, to construct the fort. The coquina was quarried from Anastasia Island across the bay from the Castillo, and ferried across to the construction site. Construction lasted twenty-three years, being completed in 1695.”