The research of the corrosive length of reinforcing steel induced by cracking on axial-tension members

• Main Authors: Hsiuan Hua Chen, 陳宣樺
• Other Authors: Wen Hsiung Chen
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/86207515260885076928

碩士 === 國立中央大學 === 土木工程研究所 === 83 === To study the behavior of the corrosive length of reinforcing steel induced by cracking on axial-tension members,this paper considers four major variables,including the steel stress,the thickness of the concrete cover,the diameter of the reinforcing steel,and the concrete compressive strength. 296 specimens were exposed in exterior environmemt for 5~9 years. The crack widths on concrete surface under loading,the crack widths exposed for 5~9 years on concrete surface after the loading being released, the cleavage lengths on the bar surface,and the corrosive lengths on the bar surface were investigated. To explore a more rational control mode of the corrosive length of reinforcing steel,we were studying different influence in four variables by using statistical methods. Referring to the recommendation of ACI Code, this paper offers the suggested values of the critical concrete cover thickness.