Material Specifications Flashcards
7 cards from real NETTCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Material Specifications flashcards as text
According to AASHTO M 43, what sieve size defines the boundary between fine and coarse aggregate?
Answer: No. 4 (4.75 mm)
AASHTO M 43 defines the No. 4 (4.75 mm) sieve as the boundary between fine and coarse aggregate.
Which AASHTO designation covers requirements for Superpave Performance-Graded (PG) asphalt binders?
Answer: AASHTO M 320
AASHTO M 320 specifies Performance-Graded asphalt binder requirements used in the Superpave system.
What does the 'L' value in a PG 64-22 asphalt binder designation represent?
Answer: The minimum pavement temperature in °C at which the binder must perform
In PG 64-22, the -22 represents the minimum pavement design temperature in degrees Celsius.
For hot mix asphalt, which property of coarse aggregate is measured by AASHTO T 96 (Los Angeles Abrasion)?
Answer: Resistance to degradation by abrasion and impact
AASHTO T 96 measures aggregate resistance to degradation by abrasion and impact using the Los Angeles machine.
Which type of portland cement is most commonly specified for general construction of transportation structures in New England?
Answer: Type I/II
Type I/II cement meets requirements for general use and moderate sulfate resistance, making it the standard choice for transportation construction.
What minimum compressive strength at 28 days does AASHTO M 157 typically require for Class A bridge concrete?
Answer: 4,000 psi
Class A bridge concrete typically requires a minimum 28-day compressive strength of 4,000 psi per AASHTO M 157 guidelines.
When specifying geosynthetic reinforcement for mechanically stabilized earth (MSE) walls, which AASHTO standard applies?
Answer: AASHTO M 288
AASHTO M 288 covers geosynthetic specification for highway applications, including reinforcement for MSE walls.