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Sealants were first used in prehistory in the broadest sense as mud, grass and reeds to seal dwellings from the weather [3] such as the daub in wattle and daub and thatching. Natural sealants and adhesive-sealants included plant resins such as pine pitch and birch pitch , bitumen , wax , tar , natural gum , clay (mud) mortar, lime mortar , lead ...
Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.
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A grout curtain is a barrier that protects the foundation of a dam from seepage and can be made during initial construction or during repair. [1] Additionally, they can be used to strengthen foundations and contain spills.
Maritime cruisers often take navy showers when they are not in a port with easy access to fresh water. A ten-minute shower takes as much as 230 liters (60 U.S. gal) of water, while a navy shower usually takes as little as 11 liters (3 U.S. gal); one person can save up to 56,000 liters (15,000 U.S. gal) per year. [3]