ACI Concrete Field Testing Technician - Grade I Practice Exam

The temperature and moisture environment for field cured cylinders must be consistent with what?

1. The surrounding environment

2. The structural work

3. The laboratory conditions

4. The curing room specifications

The correct answer is: The structural work

The correct answer emphasizes the importance of ensuring that the temperature and moisture environment for field-cured cylinders is consistent with the structural work being performed. This is critical because the conditions under which concrete is cured can significantly affect its properties, such as strength and durability. When field curing cylinders, it is essential that the conditions mimic those of the actual concrete in place to provide a meaningful assessment of the concrete's performance. By aligning the curing environment of the test specimens with that of the structure, it ensures that any tests conducted on the cylinders accurately reflect the concrete that will be in service. Field-cured specimens subjected to different curing conditions may yield results that do not correlate with the actual in-situ concrete. Thus, maintaining consistency with the structural work allows for reliable comparison and evaluation of the concrete's expected behavior and performance over time.