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首页> 外文会议>International Symposium on Natural Draught Cooling Towers; 20040520-22; Istanbul(TR) >Monitoring of deteriorational effects on high performance concrete in cooling tower shells
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Monitoring of deteriorational effects on high performance concrete in cooling tower shells

机译：监测冷却塔壳体中高性能混凝土的劣化影响

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New developments concerning concrete technology in flue-gas introduced cooling tower shells need to be observed when being used without former experience. In the new Niederauβem power plant new operating technologies are being applied as well as a new concrete technology, which was called SRB 85/35 (Acid resistant concrete with a strength of 85 N/mm~2, although only 35 N/mm~2 are needed for structural design purposes). By this way an epoxy-resin concrete cover as it is normally used, could be spared so that the concrete construction is opposed to an extraordinary and unknown chemical attack. A monitoring system has been developed according to the material and structural purposes of this extraordinary building. It consists of special openings of the shell to watch over the deteriorational effects on the concrete surface, specific sensor elements concerning the corrosion risk of the reinforcement and additional removable concrete specimen to watch over the chemical resistance of the new developed concrete even in cracked concrete elements. All installed sensors and monitoring elements, which at least are observed once a year, are working successfully.
机译：在没有以前的经验的情况下使用烟道气引入的冷却塔壳时，需要注意与混凝土技术有关的新发展。在新的Niederauβem电厂中，正在应用新的操作技术以及新的混凝土技术，称为SRB 85/35（耐酸混凝土，强度为85 N / mm〜2，尽管只有35 N / mm〜2需要用于结构设计）。通过这种方式，可以省去通常使用的环氧树脂混凝土外层，从而使混凝土结构免受异常的和未知的化学侵蚀。根据该非凡建筑物的材料和结构目的，已经开发了监视系统。它由外壳的特殊开口组成，用于监视混凝土表面的劣化影响，与钢筋腐蚀风险有关的特定传感器元件，以及用于监视新开发的混凝土（即使在破裂的混凝土元件中）的耐化学性的附加可移动混凝土样品。 。至少每年检查一次的所有已安装传感器和监视元件都可以正常工作。

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