The reviews of past researches have shown that abutment scour plays an important role in
bridge failures. Hence, protection of bridges against scour is a significant issue. For existing
bridges, armoring methods, like riprap, has a wide application. In areas where providing
stones is expensive concrete blocks or similar techniques have been applied. In this study
for the first time, the application of six-legged concrete elements has been experimentally
investigated. The six-legged elements have been placed in three different densities (open …