Florida DOT Concrete Batchman/Operator Practice Exam

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What is the primary purpose of Portland Cement Type III?

To provide sustainable construction options
To achieve high early strength
To enhance sulfate resistance
To minimize environmental impact

The correct answer is: To achieve high early strength

Portland Cement Type III is specifically formulated to achieve high early strength, making it particularly useful in situations where rapid development of strength is critical. This type of cement contains a higher amount of fine particles and a greater surface area, which allows for quicker hydration. The ability to gain strength rapidly is essential in various construction scenarios such as precast concrete products, cold weather construction, and projects requiring quick turnaround times. This characteristic helps ensure the timely completion of construction projects and reduces the overall curing time, allowing for faster subsequent construction phases. While sustainability, sulfate resistance, and environmental considerations are important aspects in concrete production and use, they do not pertain specifically to the unique properties of Portland Cement Type III.