中文摘要：

为了研究橡胶混凝土构件在真实受力状态下的耐久性，在海洋环境（氯离子浓度为3．5%）下构件承受3种应力状态（正常受力、极限受力、裂缝较宽），历时30天、60天、90天氯离子入侵的深度和速度，从而估算橡胶混凝土构件的寿命。研究结果发现：在正常受力状态下，氯离子入侵的深度较普通混凝土浅，随着时间增加而加深，到达4．0cm深度后，几乎不受氯离子影响；在极限受力状态下，氯离子入侵深度和速度较正常受力状态大；在裂缝较宽时，与正常受力状态相似。由此推断，橡胶混凝土在海洋环境中抗氯离子能力较强，其耐久性大大提高。

英文摘要：

In order to researeh the durability of frame member of rubberized concretes, three stress states and chloride ion density （three point five percent） for ocean environments were designed to study the invading law of chloride ion under thirty days, sixty days, ninety days to estimate their life of rubberized concretes. The result shows that under normal stress the depth of rubberized concretes for chloride ion invaded is shallower than that of ordinary concretes. With increasing of time, the depth is increasing and steady to four centimeters. Under the limit stress, the chloride ion invades deeper and faster. Under the stress of wide fissures, the law of invading is the same as ordinary concretes. Therefore, the conclusion was drawn that the rubberized concretes has stronger ability of chloride ion penetration resistance and better durability.