CAJ | 학술논문

鉴于北方海洋环境十分恶劣，对混凝土的破坏严重，目前对于海工混凝土耐久性问题的研究主要集中在氯离子渗透、硫酸盐侵蚀、冻融作用等方面。其中，氯盐侵蚀和冻融作用对混凝土造成的破坏尤为严重，所以对海工混凝土进行抗冻、抗盐害的设计尤为重要。出于混凝土劣化的主导因素和经济性的考虑，在海工结构中，大掺量粉煤灰混凝土（ High Fly Ash Content Concrete，简称HFCC）以其经济效益和环境效益被人们愈来愈重视。主要对氯盐和冻融耦合作用下的大掺量粉煤灰混凝土的耐久性进行了探讨。
감우북방해양배경십분악렬，대혼응토적파배엄중，목전대우해공혼응토내구성문제적연구주요집중재록리자삼투、류산염침식、동융작용등방면。기중，록염침식화동융작용대혼응토조성적파배우위엄중，소이대해공혼응토진행항동、항염해적설계우위중요。출우혼응토열화적주도인소화경제성적고필，재해공결구중，대참량분매회혼응토（ High Fly Ash Content Concrete，간칭HFCC）이기경제효익화배경효익피인문유래유중시。주요대록염화동융우합작용하적대참량분매회혼응토적내구성진행료탐토。
The north sea environment is very bad,which damages the concrete seriously,so the current research of concrete durability mainly focuses on the chloride ion penetration,sulphate erosion,freeze - thaw action and so on. Among them,the damage to concrete from chlorine salt erosion and freeze -thaw is particularly serious,so frost resistance and salt stress resistance design of marine engineering is particularly important. Considering the dominant factor of concrete degradation and cost,high fly ash content concrete( HFCC ) is becoming more and more attractive because of its economic and environmental profits. The author mainly discusses the durability of HFCC under the coupling effect of freeze-thaw and chlorine salt.