摘要
沿海地区风机基础的抗氯离子耐久性是风机基础设计时考虑的重要内容之一。针对氯离子对混凝土中钢筋侵蚀的机理,进行混凝土配合比试验,确定合适的混凝土配合比。用ASTM法定性评价混凝土抗氯离子性能,评价阻锈剂和防腐涂层的效果;用RCM方法测定混凝土的氯离子扩散系数,通过掺加阻锈剂提高临界氯离子浓度,能显著提高混凝土抗氯离子侵蚀能力。对混凝土耐久性寿命预测时宜考虑混凝土氯离子结合能力和氯离子扩散性能的劣化效应。开展氯离子初始浓度、氯离子扩散系数、氯离子临界浓度等参数的敏感性分析,总结滩涂风电场耐久性设计的有关经验,可供同类工程参考。
The durability of anti-chloride plays a vital role in wind turbine design.Based on the principle of the ingression of chloride in concrete,mix proportion experiment of concrete is conducted.By ASTM method,the performance of anti-chloride in concrete and the effects of inhibitor admixture and anti-concrete are evaluated.Using the RCM method to obtain the chloride diffusion coefficient,a series of experiments are developed.Some experience of durability design of wind turbine in mudflat areas is summarized in the paper, which can be used as reference for similar projects.
出处
《中国海洋平台》
2010年第6期5-10,共6页
China offshore Platform
基金
国家自然科学基金资助项目(50509021)
关键词
风力发电
风机基础
耐久性
氯离子
寿命预测
wind power
wind turbine foundation
durability
chloride
service life prediction
