Florida DOT Concrete Batchman/Operator Practice Exam

Portland Cement Type II (MH) is primarily used in what scenario?

1. Regular building with mild environmental exposure

2. Highly aggressive environments and mass concrete elements

3. Early strength applications

4. General construction projects

The correct answer is: Highly aggressive environments and mass concrete elements

Portland Cement Type II (MH) is specifically designed for use in environments where there is moderate sulfate resistance and where the heat of hydration needs to be controlled, such as in mass concrete applications. This cement type is commonly used in structures where large pours are required, as it reduces the risk of thermal cracking, which can occur due to the heat generated from cement hydration. In highly aggressive environments, such as those exposed to sulfates found in soil or water, utilizing Type II cement helps in maintaining the integrity and longevity of the structure. This is particularly important in scenarios like constructing foundations, bridges, and other large structures where durability and resistance to environmental factors are critical. While options like regular building for mild environmental exposure, early strength applications, and general construction projects may require different types of cement designed for those specific purposes, Type II is particularly suited for mass concrete assemblies and conditions where there is a risk of damage due to aggressive environmental factors.