and Answers
ASTM - Correct answer-American Society for Testing and Materials
ASTM C31/C31M - Correct answer-Making and Curing Concrete Test Specimens
in the Field
Granular materials used with cementing medium to form hydraulic-cement,
concrete, or mortar are called? - Correct answer-Aggregates
ASTM C138 - Correct answer-This test method covers determination of the
density of freshly mixed concrete and gives formulas for calculating the unit
weight, yield or relative yield, cement content, and air content of the concrete.
Water that rises to the surface of a freshly placed concrete is called? - Correct
answer-Bleed Water
A condition where two parallel edges of the panel are in the same plane and the
portions of the panel between the edges is out of plane is called? - Correct answer-
Bowing
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,The finish of concrete cast without forms that usually requires manual or machine
finish is called - Correct answer-Unformed Surface Finish
The finish of concrete cast directly against a form is called - Correct answer-As-
Cast Formed Finish
ASTM C143 - Correct answer-Standard Test Method for Slump of Hydraulic-
Cement Concrete
A substance placed on a material to prevent it from bonding to the concrete or
between a face material and the concrete backup is called? - Correct answer-Bond
Breaker
ASTM C172 - Correct answer-Standard Practice for Sampling Freshly Mixed
Concrete
Material other than water, aggregates, cement, or fiber used in concrete, mortar, or
grout added to batch immediately before or during mixing to modify concrete
properties is called _______________ - Correct answer-Admixture
ASTM C173 - Correct answer-Standard Test Method for Air Content of Freshly
Mixed Concrete by the Volumetric Method
ASTM C231 - Correct answer-Standard Test Method for Air Content of Freshly
Mixed Concrete by the Pressure Method
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, ASTM C1064 - Correct answer-Standard Test Method for Temperature of Freshly
Mixed Hydraulic-Cement Concrete
PCI MNL-130 - Correct answer-GFRC
QSM - Correct answer-Quality System Manual
AWS D1.1 - Correct answer-Structural Welding Code Steel
ASTM A706 - Correct answer-Reinforcing Steel does include weldability as a
required property
For aggregates predominantly retained on the #4 sieve, the portion retained are
called? - Correct answer-Coarse Aggregates
Cements must conform to - Correct answer-ASTM C150
Lightweight Concrete must conform to - Correct answer-ASTM C330
Fine and Coarse Aggregates must conform to - Correct answer-ASTM C33
Fineness modulus of fine aggregates for structural products must always be within
_________________ to conform to ASTM C33. Architectural products are exempt
when trying to get a certain finish. - Correct answer-2.3 to 3.1 with a variation of
+/- 0.2 between gradations
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