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首页> 外文会议>Fourth International Conference on Repair, Rehabilitation, and Maintenance of Concrete Structures, and Innovations in Design and Construction Seoul, Korea, September 2000 >Repair of Deteriorated Reinforced Concrete Slabs
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Repair of Deteriorated Reinforced Concrete Slabs

机译：劣化钢筋混凝土板的维修

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摘要

A laboratory test and a case history of deteriorated reinforced concrete slab repair are presented. Since several structural problems have been reported for reinforced concrete slabs, it is necessary to establish repair techniques for such slabs. Many structural problems of reinforced concrete slabs derive from a decline in rigidity with age. Although several techniques have been developed, their effectiveness has not been ascertained, especially over the long term. A laboratory test was conducted to ascertain the effectiveness of repair techniques. Based on the test results, the overlay repair technique was applied to actual slabs. In the case history, short and long-term performances of the repaired slabs were measured for more than 2000 days. Changes in the rigidity and natural frequency of the slabs were examined. The material properties and adhesive strength of old and new concrete were also examined. Although the static and dynamic performances of the repaired slabs improved remarkably, their performances gradually decreased with age. It is important to allow a reasonable margin of error for repairing deteriorated slabs.
机译：介绍了实验室测试和钢筋混凝土楼板维修不良的病历。由于已经报道了钢筋混凝土板的几个结构问题，因此有必要建立这种板的修复技术。钢筋混凝土楼板的许多结构问题源于随着年龄的增长刚度下降。尽管已经开发了几种技术，但尚未确定其有效性，尤其是从长期来看。进行了实验室测试以确定修复技术的有效性。根据测试结果，将覆盖修复技术应用于实际的楼板。在案例历史中，对修复后的平板的短期和长期性能进行了超过2000天的测量。检查了板的刚度和固有频率的变化。还检查了新旧混凝土的材料性能和粘合强度。尽管修复后的楼板的静态和动态性能显着提高，但它们的性能却随着年龄的增长而逐渐降低。重要的是要有合理的误差范围以修复损坏的板坯。

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