De-icing work in highways has been changed from sand and calcium chlorides spreading to pre-wetted salt spreading since 2000s. Recently, the concern on the premature deterioration of concrete structures due to de-icing salts and its counter measurements has been increased. This paper describes the change of de-icing methods and deterioration due to chloride attack and specification of durable concrete.

• 김홍삼(한국도로공사 도로교통연구원) | Kim Hong Sam
• 김기환 | Kim Ki Hwan
• 최현호 | Choi Hyun Ho
• 김진철 | Kim Jin Cheol