Durability Evaluation of an Airport Runway Shoulder
The durability of an airport runway shoulder located in northern China has been explored both in field and in laboratory. Serious cracking and spalling appeared upon surface of the runway shoulder shortly after the airport was put into service. Alkali-aggregate reaction was assessed by both field survey and lab examination. Expansion due to sulfate attack was also measured to assess the sulfate resistance. Frost resistance was evaluated through rapid-freezing method. Moreover, the microstructure of the runway shoulder concrete were examined. Results show that freeze-thaw cycle is the main cause for the deterioration of the runway shoulder, excluding the possibility of alkali-aggregate reaction and sulfate attack.
Runway shoulder Alkali-aggregate reaction Sulfate attack Freeze-thaw cycle
Shiping Zhang Min Deng Jianhua Wu Mingshu Tang
College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China
国际会议
南京
英文
1240-1244
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）