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Compressed earth block. A compressed earth block (CEB), also known as a pressed earth block or a compressed soil block, is a building material made primarily from an appropriate mix of fairly dry inorganic subsoil, non-expansive clay, sand, and aggregate. Forming compressed earth blocks requires dampening, mechanically pressing at high pressure ...
Insulating concrete form or insulated concrete form (ICF) is a system of formwork for reinforced concrete usually made with a rigid thermal insulation that stays in place as a permanent interior and exterior substrate for walls, floors, and roofs. The forms are interlocking modular units that are dry-stacked (without mortar) and filled with ...
A wave-dissipating concrete block is a naturally or manually interlocking concrete structure designed and employed to minimize the effects of wave action upon shores and shoreline structures, such as quays and jetties. One of the earliest designs is the Tetrapod, invented in 1950. Other proprietary designs include the Modified Cube (United ...
Keystone (architecture) A keystone (or capstone) is the wedge-shaped stone at the apex of a masonry arch or typically round-shaped one at the apex of a vault. In both cases it is the final piece placed during construction and locks all the stones into position, allowing the arch or vault to bear weight. [1][2][3] In arches and vaults (such as ...
Home Depot employees can discount most items in store up to $50 without manager approval, if a customer brings up a concern about the product or notes a discrepancy with a sales ad. The employee ...
A block from which the diagonal ribs of a vault spring or start. The top of the springer is known as the skewback. [19] Cross-wing A wing attached to a main or original house block, its axis at right angles to the original block, and often gabled. Crypt A stone chamber beneath the floor of a church or other building.