- Tridilosa
Tridilosa is a very light and resistant, materials-efficient 3-D structure, made from steel and concrete and widely used in
civil engineering . Tridilosa was invented by the Mexicanengineer Heberto Castillo .Among the most remarkable features of this structure is that it can save up to 66% on concrete usage and up to 40% on steel, because filling with concrete is only required in the
tension zone , but not in thesuperior compression zone . It is so light that it can float on water, but is three times stronger than traditional constructionflagstone . It was used, for example, to construct the 54-floor World Trade Center ofMexico City .External links
* [http://www.hebertocastillo.org Fundación Heberto Castillo / Heberto Castillo foundation]
Wikimedia Foundation. 2010.