ASTM D6916-18 PDF Download

ASTM D6916-18 is a standard test method used to determine the shear strength between segmental concrete units, specifically in the design of reinforced soil retaining walls. The test is conducted by replicating the full-scale conditions of the facing system in order to accurately measure the shear strength developed between the units under varying normal loads. The relationship between shear strength and normal load can be linear, bilinear, or expressed through a complex mathematical model.

This test method is considered a performance test, either conducted in the laboratory or in the field, and utilizes full-scale system components. It is not intended for routine testing but rather focuses on assessing the performance of the retaining wall system under specific conditions. By accounting for the variables in construction procedures and materials tolerance, the test provides valuable information for designing retaining wall systems that utilize segmental concrete units and soil reinforcing geosynthetics.