ACI SCC Testing Practice Questions - ACI Self-Consolidating Concrete Testing Technician Exam - ACI SCC Testing Practice Questions - ACI Self-Consolidating Concrete Testing Technician Exam

Question 1

What defines self-consolidating concrete (SCC) according to ACI 237R?

Highly flowable, non-segregating concrete that can spread into place, fill formwork, and encapsulate reinforcement without mechanical consolidation Concrete with a slump of 8 inches or greater measured per ASTM C143 Concrete containing at least 10% supplementary cementitious materials High-strength concrete with compressive strength greater than 8,000 psi

Correct Answer:

Highly flowable, non-segregating concrete that can spread into place, fill formwork, and encapsulate reinforcement without mechanical consolidation

Question 2

Which ASTM standard covers the slump flow test for self-consolidating concrete?

ASTM C1611/C1611M ASTM C143/C143M ASTM C1621/C1621M ASTM C1610/C1610M

Correct Answer:

ASTM C1611/C1611M

Question 3

When performing the slump flow test per ASTM C1611, the final spread is calculated as:

The average of two diameters measured approximately perpendicular to each other, to the nearest 1/2 in. The maximum diameter measured in any direction The diameter measured parallel to the longest axis of the spread The circumference of the spread divided by pi

Correct Answer:

The average of two diameters measured approximately perpendicular to each other, to the nearest 1/2 in.

Question 4

A typical target slump flow range for most SCC applications per ACI 237R is:

18 to 30 in. (455 to 760 mm) 4 to 8 in. (100 to 200 mm) 8 to 12 in. (200 to 300 mm) 32 to 40 in. (815 to 1015 mm)

Correct Answer:

18 to 30 in. (455 to 760 mm)

Question 5

During the slump flow test, the T50 time is:

The time, to the nearest 0.2 s, from first movement until the concrete spread first touches the 500-mm (20-in.) circle The total time from raising the mold until flow stops The time for concrete to drop 50 mm inside the slump cone The time required to fill the slump cone

Correct Answer:

The time, to the nearest 0.2 s, from first movement until the concrete spread first touches the 500-mm (20-in.) circle

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About this Exam

Prepare with the ACI SCC Testing Practice Questions - ACI Self-Consolidating Concrete Testing Technician Exam practice quiz. This question bank includes 100 questions covering astm, slump, flow, cone, and c1611. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ACI SCC Testing Practice Questions - ACI Self-Consolidating Concrete Testing Technician Exam

This practice set contains 100 questions from the matching question bank and focuses on astm, slump, flow, cone, and c1611. 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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ACI SCC Testing Practice Questions - ACI Self-Consolidating Concrete Testing Technician Exam

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