ICC Commercial Building Inspector Practice Test

Adobe masonry units used in Type V construction shall have an average compressive strength of what value when tested in accordance with ASTM C 67?

1. 200 psi

2. 300 psi

3. 400 psi

4. 500 psi

The correct answer is: 300 psi

In Type V construction, which allows for the use of lighter materials such as adobe, the average compressive strength of adobe masonry units is specified by building codes to ensure structural integrity. According to ASTM C 67, which tests the compressive strength of concrete masonry units, an average compressive strength of 300 psi (pounds per square inch) is the minimum requirement for adobe masonry. This value is critical in providing adequate load-bearing capacity while maintaining compliance with safety standards in construction. Establishing a minimum compressive strength helps ensure that the materials used will withstand the stresses they will encounter in a building’s service life.