Salt-concrete
June 2, 2009 by blogtopia
Filed under Definitions
Salt-concrete (or salzbeton) is a construction material that is used to reduce the water inflow in mining shafts in salt mines. It is composed of 16 % cement, 39 % halite ,16 % limestone powder, 14 % water and 15 % sand.
Saltconcrete was used for the first time in 1984 in the Kali mine in Rocanville in Canada.[2] A salt-concrete seal was also installed in the Asse II mine in Lower Saxony in 1995.
Seacrete
June 2, 2009 by blogtopia
Filed under Definitions
Biorock, also known as Seacrete, Seament and Sea Cement, is a substance formed by electro-accumulation of minerals dissolved in seawater.
This process grows cement-like engineering structures and marine ecosystems, often for mariculture of corals, oysters, clams, lobsters and fish in salt water. It works by passing a small electrical current through electrodes in the water. Biorock grows more or less without limit as long as current flows.
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Fiber cement siding
June 1, 2009 by blogtopia
Filed under Definitions
Fiber cement siding (or "fibre cement cladding" in the UK and Australasia) is a building material used to cover the exterior of a building in both commercial and domestic applications. Fibre cement products came about as a replacement for the widely used "Asbestos Cement Sheeting" product manufactured by "James Hardie" until the late 1980s.
Fibre cement is a composite material made of sand, cement and cellulose fibers. In appearance fibre cement cladding most often consists of overlapping horizontal boards, imitating wooden cladding, clapboard and imitation shingles. Fiber cement siding is also manufactured in a sheet form and is used not only as cladding but is also commonly used as a soffit / eave lining and as a tile underlay on decks and in bathrooms.