Question 1
Under ASTM C88, what is the maximum allowable weighted percent loss for coarse aggregate tested with sodium sulfate after five cycles as commonly specified for concrete aggregates?
Correct Answer:
12%
Question 2
In the ASTM C131 Los Angeles abrasion test for small-size coarse aggregate, how many revolutions does the drum complete at 30 to 33 rpm before the sample is removed for sieving?
Correct Answer:
500 revolutions
Question 3
According to ASTM C1260 (accelerated mortar bar test for ASR), a 16-day expansion greater than what threshold is generally considered indicative of potentially deleterious alkali-silica reactivity?
Correct Answer:
0.20%
Question 4
ASTM C123 uses a heavy liquid with which specific gravity to separate chert (less dense) particles from normal-weight coarse aggregate?
Correct Answer:
2.40
Question 5
ASTM C666 Procedure A evaluates freezing and thawing resistance of concrete under what exposure condition?
Correct Answer:
Rapid freezing and thawing in water
Question 1
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Prepare with the ACI Aggregate Level 2 Practice Questions - ACI Aggregate Testing Technician - Level 2 Exam practice quiz. This question bank includes 100 questions covering astm, aggregate, coarse, concrete, and sulfate. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ACI Aggregate Level 2 Practice Questions - ACI Aggregate Testing Technician - Level 2 Exam

This practice set contains 100 questions from the matching question bank and focuses on astm, aggregate, coarse, concrete, and sulfate. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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