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Maintenance and Repair of Airfield Apron Rigid Pavements

机译:飞机停机坪刚性路面的保养与维修

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摘要

After about 20 years in service, large sections of the concrete apron at Bari Civil Airport (Italy) shows evident structural problems. Slabs are principally affected by structural cracks and by shallow and deep spallings at joints. Present and forecast traffic data were collected and compared with the bearing capacity of the pavement as well as with typologies and positions of distresses. In particular it has been assessed that construction joints fatigue life has nearly expired. According to the results of field investigations, the effectiveness of current repair methods was investigated and original repair methods were developed both for spalled and cracked slabs. They concern the partial reconstruction of slabs with a double layer of a new fibro-reinforced concrete. Some trial repairs were carried out. After one year they showed no structural problems. So repairs are now in progress on the main apron of Bari Civil Airport using these construction methods.
机译:在服役约20年后,巴里民用机场(意大利)的混凝土停机坪大段显示出明显的结构问题。板块主要受结构裂缝和接缝处浅,深剥落的影响。收集当前和预测的交通数据,并将其与人行道的承载力以及遇险类型和位置进行比较。特别是,据评估,施工缝的疲劳寿命已接近尾声。根据现场调查的结果,研究了当前修复方法的有效性,并开发了剥落和破裂平板的原始修复方法。他们关注的是用新的纤维增强混凝土的双层板的局部重建。进行了一些试修。一年后,他们没有出现结构性问题。因此,正在使用这些施工方法对巴里民用机场的主停机坪进行维修。

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