During transit, which item is not typically monitored by a CTI?

During transit, which item is not typically monitored by a CTI?

• A. Slump
• B. Temperature
• C. Air content
• D. Color of the concrete

Answer: (D)

During transit, the focus is on properties that directly affect how the concrete will be placed, finished, and endure over time. Slump is watched because it shows the concrete’s workability and how it will behave with pumps and placements at the job site. Temperature is monitored to manage the heat of hydration and to keep the mix within specified limits, preventing excessive thermal rise that could cause cracking and ensuring proper curing conditions. Air content is checked to verify the intended air-void system, which is crucial for durability in freeze–thaw cycles and overall performance. Color of the concrete isn’t a performance-related parameter; it can vary with pigments, cement and aggregate colors, or batch differences and doesn’t reliably indicate whether the concrete will meet strength, durability, or workability requirements. So, it’s not something typically monitored by a CTI during transit.

During transit, the focus is on properties that directly affect how the concrete will be placed, finished, and endure over time. Slump is watched because it shows the concrete’s workability and how it will behave with pumps and placements at the job site. Temperature is monitored to manage the heat of hydration and to keep the mix within specified limits, preventing excessive thermal rise that could cause cracking and ensuring proper curing conditions. Air content is checked to verify the intended air-void system, which is crucial for durability in freeze–thaw cycles and overall performance.

Color of the concrete isn’t a performance-related parameter; it can vary with pigments, cement and aggregate colors, or batch differences and doesn’t reliably indicate whether the concrete will meet strength, durability, or workability requirements. So, it’s not something typically monitored by a CTI during transit.