| The colloidal, glue like, material that makes up the major portion of the porous mass of which hydrated cement paste is composed.
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| 1. A cementitious mixture of portland cement, sand or other ingredients, and water which produces a uniform paste used to fill joints and cavities between masonry units. 2. A thin mortar used for pointing-up and finishing joints between tile units.
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| A mixture of cement, lime, sand, or other aggregates, and water, used for plastering over masonry or to lay block, brick or tile.
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| The mixture of portland cement, water, pozzolans and other admixtures, if any, and air which surround the aggregates in concrete; also called the matrix.
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| 1. Plaster having portland cement as its binder; used on exterior surfaces or in damp areas. 2. Gypsum plaster made to be used with the addition of sand for basecoat plaster; also called Neat or Hardwall plaster.
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| See Keenes Cement.
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| A hydraulic cement for use in mortars for masonry construction, containing one or more of the following materials. portland cement, portland blast-furnace, slag cement, portland-pozzolan cement, natural cement, slag cement or hydraulic lime; and in addition usually containing one or more materials such as hydrated lime, limestone, chalk, calcereous shell, talc, slag, or clay, as prepared for this purpose.
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| In roofing, a solidly mopped application of hot asphalt, cold liquid asphalt compound, hot coal-tar pitch, or other cementing material.
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| A component material of plaster, mortar, or concrete which when mixed with water provides plasticity necessary for placement; upon subsequent setting or hardening it serves to bind aggregate particles together into a rigid heterogeneous mass.
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| A compound that is capable of setting like concrete when applied on a concrete base to form a floor surface.
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| Having cementing properties; usually used with reference to inorganic substances, such as portland cement and lime.
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| A tomb or monument erected in honor of a person or group of persons whose remains are elsewhere.
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| See Tongue and Groove.
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| The point at which the weight of a body may be considered to act; center of mass.
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| Column in center of spiral stair which supports stair treads.
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| A hand punch consisting of a short steel bar with a hardened conical point at one end used for marking the centers of holes to be drilled.
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| The dimension from the centerline of one member to the centerline of the next member.
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| 1. The middle point of a line, circle, or sphere, equidistant from the ends or from any point on the circumference or surface; a pivot or axis of rotation. 2. A place or group of buildings forming a central point in a district or city. 3. A temporary structure to support the arch while it is being built; see Centering.
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| A sash hung on its centers so that it swings on a horizontal axis.
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| Small blocks of synthetic rubber or plastic used to hold a sheet of glass in the center of its frame.
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| Temporary formwork for an arch, dome, vault, or other overhead surface.
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| A real or imaginary line that is equidistant from the sides of some object; it is usually represented on drawings as a line of alternate dots and dashes.
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| 1. Division into hundredths. 2. Division of the circle into 400 grads.
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| Thermometric scale where 0 degrees represents the freezing point of water and 100 degrees the boiling point. Similar to Celsius.
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| A metric unit that equals one-hundredth of a meter or 10 millimeters and is equivalent to 2.54 inches.
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| A metric unit of viscosity.
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| A device for converting direct current into alternating current by mechanical or electronic means.
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| A system of conditioning air supplied to various areas or space, serviced by the same source of heat or cooling; all equipment in central systems is indoors except air-cooled condensers, evaporative condensers, and cooling towers.
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| Pump which compresses gaseous refrigerants by centrifugal force.
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| An apparent force that acts outwards on a body moving about a center.
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