3) Gjorv, O. E.: Long-time durability of concrete in seawater, ACI Journal, Vol. 68, pp. 60-67, 1971. 1.
4) Mather, K.: Concrete weathering at Treat Island, Maine, ACI SP-65, pp. 101-111, 1980.
5) Hiroi, I.: On long-time tests of Portland cement, hydraulic lime, and volcanic ashes, J. of the College of Engineering, Tokyo Imperial University, pp. 155-172, 1920. 6.