2021 Volume 77 Issue 2 Pages I_535-I_540
Japanese Reinforcing Concrete (RC) wave-dissipating blocks are a technology with excellent stability, economy, and wave-dissipating performance in severe marine environments. Taking advantage of this characteristic, it is expected to expand overseas, such as in the northern region of Africa, where the waves are large. However, in the case of overseas where RC wave-dissipating blocks have not been used, there is a strong concern about salt damage, and a quantitative evaluation of 100-years durability is required. Also, due to the difference between Japanese concrete and local concrete, it is difficult to refer to the use results of blocks in Japan. Therefore, mainly targeting Morocco, various tests were conducted on the strength characteristics and durability of concrete using local materials, and evaluations were made based on the results to clarify the applicability of RC blocks. The results of this examination provide information on indicators that should be considered regarding the durability of concrete in severe marine environments when disseminating Japanese technology to Africa, where it has become increasingly important in recent years.
