reinforced concrete - Correct Answer - Concrete in which steel reinforcement is embedded in
such a manner that the two materials act together in resisting forces. Also called beton
arme,ferro concrete
Reinforcement - Correct Answer - System of steel bars, strength or wires for absorbing stensile,
shearing and sometimes the compressive stresses in a concrete member or structure
Reinforcing bar - Correct Answer - Steel bar for enforcing concrete, usually specified by the
number equivalent to its diameter in eight of an inch. Also called rebar
Deform bar - Correct Answer - Reinforcing bar hot rolled with surface deformations to develop
greater bond with concrete
Tension reinforcement - Correct Answer - Rainforcement designed to absorb tensile stresses
Compression reinforcement - Correct Answer - Reinforcement designed to absorb compressive
stresses
Effective depth - Correct Answer - The depth of concrete section measured from compression
face to the centroid of the tension reinforcement
Bar spacing - Correct Answer - The center to center spacing of parallel reinforcing bar, resulting
clear distance between the bar being regula ted by bar diameter, maximum size of coarse
aggregate, and thickness of the concrete section
Cover - Correct Answer - The amount of concrete required to protect steel reinforcement from
fire and corrosion, measured from surface to the reinforcement to the outer surface of the
concrete section
Bond - Correct Answer - The adhesion between two substances such as concrete and
reinforcing bars
bond stress - Correct Answer - The adhesive force per unit area of contact between the rain
forcing bar in the surrounding concrete developed at any section of a flexural a member
Plain concrete - Correct Answer - Concrete having no enforcement or reinforced only for drying
shrinkage or thermal stresses
Ferrocement - Correct Answer - Constructed of cement and mortar over a wire mesh that has
been pre shape over a mold
, Cracked section - Correct Answer - Concrete section design or analyzed on the assumption that
concrete has no resistance to tensile stresses
Cracking load - Correct Answer - The load that causes the tensile stresses in a concrete
member to exceed the tensile strength of the concrete
Effective area of concrete - Correct Answer - The area of a concrete section between the
compression face in the centroid of the tension reinforcement
Effective area of reinforcement - Correct Answer - The product of the right cross sectional area
of reinforcement in the cosine of the angle between the direction in the direction for which its
effectiveness is considered
percentage reinforcement - Correct Answer - The ratio of effective area of reinforcement
effective area of concrete at any section of a reinforced concrete member, expressed as a
percentage
Embedment length - Correct Answer - the length of embedded reinforcement provided beyond a
critical section for Anchorage
hook - Correct Answer - A bend or curve given to the end of a tension bar to develop an
equivalent embedment length, used where there is insufficient room to develop an adequate
embedment length
Standard hook - Correct Answer - 90 degrees, 135 degrees, or 180° been made at the end of a
reinforcing bar according to industry standards with a radius based on the bar diameter
fiber reinforced concrete - Correct Answer - Concrete reinforced with this purse, randomly
oriented fiber of glass or plastic
GFRC - Correct Answer - Abbreviation for glass fiber reinforced concrete
Welded wire fabric - Correct Answer - a grid of longitudinal and transverse steel wires or bars
welded together at all points of intersection, usually specified by the size of the grid in inches in
the wire gauge. Also called welded wire mesh
woven wire fabric - Correct Answer - A mesh of cold rolled steel wire mechanically twisted
together to form hexagonally shaped openings
Balance section - Correct Answer - a concrete section in which this the tension reinforcement
theoretically reaches its specified yield strength of the concrete in compression pictures it's
assumed ultimate stream