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An earthen floor. An earthen floor, also called an adobe floor, is a floor made of dirt, raw earth, or other unworked ground materials. It is usually constructed, in modern times, with a mixture of sand, finely chopped straw and clay, mixed to a thickened consistency and spread with a trowel on a sub-surface such as concrete.
Portland cement or bitumen may also be added to earth intended for construction which adds strength, although the stabilized earth is not as strong as fired clay or concrete. [18] Mixtures of cement and lime, or pozzolana and lime, may also be used for stabilization. [19] Preferably the sand content of the soil will be 65% – 75%.
Forming compressed earth blocks requires dampening, mechanically pressing at high pressure, and then drying the resulting material. If the blocks are stabilized with a chemical binder such as Portland cement they are called compressed stabilized earth block (CSEB) or stabilized earth block (SEB). Typically, around 3,000 psi (21 MPa) of pressure ...
The ruins of a Han dynasty (202 BCE – 220 CE) Chinese watchtower made of rammed earth in Dunhuang, Province of Gansu, China, at the eastern end of the Silk Road.. Rammed earth is a technique for constructing foundations, floors, and walls using compacted natural raw materials such as earth, chalk, lime, or gravel. [1]
Alker is an earth-based stabilized building material produced by the addition of gypsum, lime, and water to earth with the appropriate granulometric structure and with a cohesive property. Unbaked and produced on-site either as adobe blocks or by pouring into mouldings (the rammed earth technique), it has significant economical and ecological ...
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Bags of portland cement wrapped and stacked on a pallet. Blue Circle Southern Cement works near Berrima, New South Wales, Australia.. Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout.
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