ACI CT 2020 ACI Concrete Terminology.
composite sample — sample obtained by blending two or more individual samples of a material. compression fange? — the widened portion of an I, T, or similar cross-sectional beam that is compressed by bending under normal loads. compression member — any member in which the primary stress is longitudinal compression. compression reinforcement — reinforcement designed to carry compressive stresses. (See also stress.) compression test — test made on a test specimen of mortar or concrete to determine the compressive strength. concentric tendons — tendons following a line coincident with the gravity axis of the prestressed concrete member. concordant tendon — a tendon with a profle that does not produce secondary moments and support reactions due to the prestressing force. concrete — mixture of hydraulic cement, aggregates, and water, with or without admixtures, fbers, or other cementitious materials. concrete block — a concrete masonry unit, usually containing hollow cores. concrete breakout failure — a concrete failure mode that develops a cone or edge failure of the test member due to setting of the anchor or to applied loads. concrete brick — solid concrete masonry units of relatively small prescribed dimensions. concrete cart — see buggy. concrete compressive strength — the measured maximum resistance of a concrete specimen to axial compressive loading and expressed as force per unit cross sectional area. concrete containment structure — a composite concrete and steel assembly that is designed as an integral part of a pressure retaining barrier that, in an emergency, prevents the release of radioactive or hazardous efuents from nuclear power plant equipment enclosed therein. concrete dye — similar to traditional one-component hardeners, having additional constituent materials formulated to color the concrete surface. concrete fnishing machine? — (1) a machine mounted on fanged wheels that ride on forms or on specially set tracks, used to fnish surfaces such as those of pavements; (2) a portable power-driven machin
hesitation setting — see false setting (preferred term). Hessian — see burlap (preferred term). high-alumina cement — see calcium-aluminate cement (preferred term). high-density concrete — concrete of substantially higher density than that made using normal- density aggregates, usually obtained by use of high-density aggregates and used especially for radiation shielding. high-discharge mixer — see inclined-axis mixer (preferred term). high-early-strength cement — portland cement characterized by attaining a given level of strength in mortar or concrete earlier than does normal portland cement (referred to as ASTM C150 Type III). high-early-strength concrete — concrete that, through the use of additional cement, high-early-strength cement, or admixtures, has accelerated early-age strength development. high-fneness cement? — a hydraulic cement of substantially higher specifc surface and substantially smaller mean particle diameter than typical for products of similar composition produced by additional grinding or by separation by particle size. high-lift grouting — a technique in masonry wall construction in which the grouting operation is delayed until the wall has been laid up to a full story height. (See also low-lift grouting.) high-performance concrete — concrete meeting special combinations of performance and uniformity requirements that cannot always be achieved routinely using conventional constituents and normal mixing, placing, and curing practices. high-pressure steam curing — see autoclave curing (preferred term). high-range water-reducing admixture — a water-reducing admixture capable of producing large water reduction or great fowability without causing undue set retardation or entrainment of air in mortar or concrete. high-strength concrete — concrete that has a specifed compressive strength for design of 8000 psi (55 MPa) or greater..ACI CT pdf download.