Pouring concrete mixture into the sea immediately started the hardening process and rather than just dissolving in the mass of water, the substance was tough and long-lasting.
将混凝土混合物倒入大海后立即开始硬化过程，而且该物质非但不会在水中溶解，还保持坚硬耐久。
2
The strength for hardening calcined kaolinite-Portlandite-gypsum system is derived from the quantity of forming ettringite.