|Table of Contents|

Damage characteristics of cement concrete pavement for airfield resulted from different de-icing techniques(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2015年04期
Page:
18-25,42
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Damage characteristics of cement concrete pavement for airfield resulted from different de-icing techniques
Author(s):
ZHAO Fang-ran DU Shi-mei LIU Xin-chen AN Wen-bo XU Xiao-lei
School of Airport, Civil Aviation University of China, Tianjin 300300, China
Keywords:
airfield runway cement concrete pavement hot air de-icing chemical de-icing pavement damage
PACS:
U416.216
DOI:
-
Abstract:
Hot air de-icing and chemical de-icing with ethylene glycol and carbamide were simulated for cement concrete pavement of airfield, the mass loss and strength decrease ratio of each concrete specimen were tested, and the the damage rules of de-icing methods and de-icing numbers on cement concrete pavement were analyzed. Analysis result shows that hot air de-icing slowly damages cement concrete specimen, the distinct mass loss only appears after 45 times hot de-icing, but hot air de-icing severely damages the inside structure, and the strength decrease ratio is more than 35% after 50 times hot air de-icing. Though the strength decrease ratio of cement concrete specimen is less than 20% after 50 times chemical de-icing, but the corrosive mass loss of specimen surface is remarkable, and is 8.5% after 50 times carbamide de-icing and is 5 times greater than the value after hot air de-icing. Therefore, chemical de-icing is more reasonable than hot air de-icing for protecting the structural strength of cement concrete pavement. On the other hand, hot air de-icing is preferred because of considering aeroengine damage induced by concrete spall on airfield runway, but its influence on pavement structural strength should be paid attention to. 1 tab, 13 figs, 18 refs.

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Last Update: 2015-08-30