Study Guide questions with answers
ASTM C31 / C31M-06 - ....🔰VERIFIED ANSWERS.... ✔✔Standard Practice
for Making, Curing, Protecting & Transporting Test Specimens in the Field
Conditions.
ASTM C1064 /C1064M-05 - ....🔰VERIFIED ANSWERS.... ✔✔Standard Test
Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete
ASTM C172 -07 - ....🔰VERIFIED ANSWERS.... ✔✔Standard Practice For
Sampling Freshly Mixed Concrete From Different Containers Used In The
Production or Transportation Of Concrete.
ASTM C143 / C143M-05a - ....🔰VERIFIED ANSWERS.... ✔✔Standard Test
Method for Slump of Hydraulic-Cement Concrete Both In Laboratory And In
The Field
ASTM C138 / C138M-07 - ....🔰VERIFIED ANSWERS.... ✔✔Standard Test
Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of
Concrete
ASTM C231 -04 - ....🔰VERIFIED ANSWERS.... ✔✔Standard Test Method for
Air Content of Freshly Mixed Concrete by Pressure Method
, ASTM C173 / C173M-07 - ....🔰VERIFIED ANSWERS.... ✔✔Standard Test
Method For Air Content of Freshly Mixed Concrete Containing Any Type Of
Aggregate, Whether It Be Dense, Cellular, or Lightweight by Volumetric
Method
Molds - ....🔰VERIFIED ANSWERS.... ✔✔Mold for specimens shall be made
of steel, cast iron, or other nonabsorbent material, nonreactive with concrete.
Molds shall be watertight and hold their dimensions and shape under all
conditions of use.
Cylindrical Specimens - ....🔰VERIFIED ANSWERS.... ✔✔Compressive or
Splitting Tensile Strength Specimens shall be cylinders cast and allowed to set
in an upright position. The length shall be twice the diameter (4 X 8in or 6 X 12
in). The cylinder daimeter shall be at least 3 times the nominal maximum size
of the coarse aggregate. When the nominal maximum size of the coarse
aggregate exceeds 2 inches the concrete sample shall be treated by wet sieving
through a 2 inch sieve.
Beam Specimens - ....🔰VERIFIED ANSWERS.... ✔✔Flexural strength
specimens shall be beams of concrete cast and hardened in the horizontal
position. The length shall be at least 2 inch greater than three times the depth
as tested. The ratio of width to depth as molded shall not exceed 1.5. The
standard beam shall be 6 by 6 inches in cross section, and shall be used for
concrete with nominal maximum size coarse aggregate up to 2 inches. When
the nominal maximum size of the coarse aggregate exceeds 2 inches, the
smaller cross sectional dimension of the beam shall be at least three times the
nominal maximum size of the coarse aggregate.