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钢筋混凝土是海洋工程的基本材料。由于海洋工程所处环境均为高浓度的盐溶液,因此探讨盐溶液对混凝土的腐蚀作用是许多材料科学工作者的研究课题。混凝土的腐蚀主要是其中钢筋的腐蚀,所以研究氯离子在混凝土中的扩散速率有其实际意义,可为海工混凝土钢筋的防腐设计提供必要的参数。由于氯离子在混凝土中的扩散速率显然与混凝土的孔结构以及骨料和水泥浆体的界面状况紧密相关,故氯离子在其中的扩散系数,为反映混凝土孔结构或内部界面状况的一个重要参数。
Reinforced concrete is the basic material of marine engineering. Since the marine engineering environment is a highly concentrated salt solution, it is a research topic for many materials scientists to discuss the effect of salt solution on the corrosion of concrete. The corrosion of concrete is mainly the corrosion of steel bars. Therefore, it is of practical significance to study the diffusion rate of chloride ions in concrete. It can provide necessary parameters for the corrosion protection of marine concrete reinforcement. Since the diffusion rate of chloride ions in concrete is obviously closely related to the pore structure of concrete and the interface conditions of aggregates and cement pastes, the diffusion coefficient of chloride ions in it is an important parameter reflecting the condition of the concrete pore structure or internal interface. .