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Ferrocement or ferro-cement [1] is a system of construction using reinforced mortar [2] or plaster (lime or cement, sand, and water) applied over an "armature" of metal mesh, woven, expanded metal, or metal-fibers, and closely spaced thin steel rods such as rebar. The metal commonly used is iron or some type of steel, and the mesh is made with ...
The minimum bid was US$3 million and the sale closed January 16, 2003. [2] The city of Carlotta, California was up for auction on eBay in February 2003. [3] In September 2004, the Indiana Firebirds arena football team was auctioned off, first in a regular auction that failed to reach the reserve price, [4] and again as a "Buy it Now" item for ...
Most popular in the late 19th century through the 1940s, ferrocement faux bois has largely disappeared with the passing of those most expert in its practice. What few objects remain from that peak period (mostly in the form of garden art, such as planters and birdbaths) are now highly prized by collectors.
The advantage of ferrocement construction is that materials are cheap and readily available, while the disadvantages are that construction labor costs are high, as are operating costs. (Ferrocement ships require thick hulls, which results in either a larger cross-sectional area that hurts hydrodynamics, or leaves less space for cargo.)
MP Materials produced 28,000 tonnes of rare-earth oxide equivalent from Mountain Pass in 2019, and 38,500 tonnes in 2020, or more than 15% of global production. [4] As of late 2020, Shenghe Resources was the sole purchaser of MP Material's rare earth concentrate. [35] [36] As of 2023, MP Materials had a three-stage plan for scaling its ...
Cast Earth is a proprietary natural building material developed since the mid-1990s by Harris Lowenhaupt and Michael Frerking [1] based on the earlier Turkish Alker, which is a concrete-like composite with soil of a suitable composition as its bulk component stabilized with about 15% calcined gypsum (plaster of Paris) instead of Portland cement.
He continued to find new uses for the material, and obtained more patents — iron-reinforced concrete pipes and basins (1868); iron-reinforced concrete panels for building façades (1869); bridges made of iron-reinforced concrete (1873); reinforced concrete beams (1878).
Mark Kendall Sargent (born c. 1969) is an American conspiracy theorist, who is one of the leading proponents of, and recruiters for, the discredited flat Earth conspiracy theory in the United States. According to critics, his YouTube videos have greatly accelerated the popularization of modern flat Earth belief, one without scientific merit.