| Any geologically recent deposit of fine soil, silt, sand, and gravel from an ancient river.
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| A class of specially processed calcined gypsum having properties of low consistency and high strength.
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| A stipulated construction item and its cost, in addition to the original base bid, for a specific item to be included or excluded from the project; a mutually agreed upon item that is used in place of the originally specified item.
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| Electric current in which direction of flow alternates or reverses in 60-cycle (Hertz) current, direction of flow reverses every 1/120th of a second.
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| See Secondary Network.
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| Resolution of a dispute without litigation, includes negotiation, mediation, and arbitration.
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| An electric generator for producing alternating current.
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| . Used in high early strength concrete.
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| A vitreous ceramic whiteware for technical application in which Alumina (A12O3) is the essential crystalline phase.
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| A mineral usually found in the clay used for brickmaking.
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| A hydraulic cement in which the principal constituents are calcium illuminates, instead of calcium silicates which comprise the major ingredients of portland cement. (See calcium aluminate cement)
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| 900 19th Street, NW, #300, Washington, DC 20006, (202) 862-5100.
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| Aluminum sections formed by extrusion.
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| Walkway fabricated of aluminum grid placed over roof surface to protect roofing surface from damage from traffic.
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| A watertight outer housing, fashioned from aluminum, placed around a pipe or vessel.
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| Aluminum hammered into very thin sheets.
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| 1. Corrosion on surface of an aluminum member caused by oxidation. 2. Hard and sharp abrasive made by fusing mineral Bauxite at high temperature.
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| Mixture of finely divided aluminum particles in flake form combined with vehicle.
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| Flat aluminum sheet material.
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| Flat rolled aluminum plate.
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| White extender pigment made from China clay or feldspar, which provides very little color or opacity.
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| A facade of a building or structure which is constructed of a system of aluminum tubing and glass.
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| Electrical conductors and cable manufactured from aluminum.
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| Aluminum, zinc plated for corrosion protection by hot dipping into molten zinc or by electrolysis.
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| A bluish silver-white malleable metallic element with good electrical and thermal conductivity, high reflectivity and resistance to oxidation.
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| A merger or consolidation of two or more businesses.
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| The feeling of the surroundings or atmosphere of a place.
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| Prevalent Level Samples.
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| The quiet-state noise level in a room or space, which is a composite of sounds from many external sources, both near and far, over which one individual has no control.
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| 1. Room temperature or the temperature of the surroundings; temperature of fluid (usually air) which surrounds object on all sides.
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