Glossary of Terms

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ECCENTRICITY: The distance between a vertical load reaction and a centroidal axis of masonry.

EDGESET: A brick set on its narrow side instead of on its flat side.

EFFECTIVE HEIGHT: The height of a member that is assumed when calculating the slenderness ratio.

EFFLORESCENCE: A deposit or encrustation of soluble salts generally white, usually carbonates or sulfates, that may form on the surface of stone, brick, concrete or mortar when moisture moves through and evaporates from the masonry.

EGGSHELL FINISH: Dull polish or matte surface.

EIGHT-CUT FINISH: Fine, bush-hammered; interrupted parallel markings not over 3/32" apart; a corrugated finish; smoother near arris lines and on small surfaces.

ELLIPSE: The conic section resulting from cutting a cone obliquely through its curved surface.

ENCRINAL MARBLE: Marble deriving decoration from fossils or shells.

ENDOLITHIC: The process of adding color to incised lettering in stone.

ENTABLATURE: A horizontal, projecting group of stones immediately above a column capital. Consists of three major parts: architrave, cornice, and frieze.

ENTASIS: The curve resulting from the gradual diminishing in the diameter of the upper two-thirds of a column.

EMULSION: Mixture of solid particles of binder and the liquid carrier in which they are suspended but insoluble.

EPOXY: A class of synthetic, thermosetting resins that produce tough, hard, chemical resistant coating and excellent adhesives.

EPOXY RESIN: A flexible, usually thermal setting resin made by polymerization of an epoxide and used as an adhesive.They are characterized by toughness, good adhesion, corrosion, chemical resistance, and good dielectric properties. Most epoxy resins are the two-part type, which harden when blended. It is used as surface coatings, adhesives for composites and for metals, floor surfacing and wall panels, cements and mortars.

ERECTION: The process of and setting vertical dimensional stone in place.

EXFOLIATION: Peeling, swelling or scaling of stone or mineral surfaces in thin layers, caused by chemical or physical weather or by heat.

EXPANSION: Enlargement of length and bulk by reason of temperature rise or absorption of water.

EXPANSION ANCHOR: A metal expandable unit inserted into a drilled hole that grips stone by expansion.

EXPANSION BOLT: An anchoring device; a socket that grips a drilled hole in stone by expanding as the bolt is screwed into it.

EXPANSION-CONTRACTION JOINT: A joint designed to expand or contract with the temperature change.

EXPEDITER: One who clerks and hastens the arrival of building materials or equipment to meet a progress schedule.

EXPOSED AGGREGATE: Phrase applied to the larger pieces of stone aggregate purposefully exposed for their color and texture in a cast slab. Can be done by casting on a slab or by application to an existing wall over epoxy or cement coat.

EXTERIOR: The outside of a building or situated on the outside.

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