|
Title |
Experimental Validation of the Impact of Initial Chloride Content on Mortar Properties and Corrosion Risk of Rebars
|
|
Authors |
정철우(Chul-Woo Chung) ; 최지웅(Ji-Ung Choi) ; 아비츄 미카엘 리에우(Gebremicael Liyew) ; 권성준(Seung-Jun Kwon) ; 장승엽(Seung Yup Jang) ; 김형기(Hyeong-Ki Kim) |
|
DOI |
https://doi.org/10.4334/JKCI.2024.36.6.541 |
|
Keywords |
초기염화물; 내구성; 모르타르; 철근부식; 임계염화물량 initial chloride content; durability; mortar; corrosion; critical chloride content |
|
Abstract |
A series of experimental studies was reassess to reconsider the maximum initial chloride contents specified in the relevant specifications. First, the current regulations regarding initial chloride content established in several countries were reviewed. next various properties, including mortar flow, porosity, strength, and chloride penetration resistance, were assessed for mortars with varying initial chloride content. Third, corrosion risks of rebars embedded in the mortar with various initial chloride contents were evaluated. The experimental results revealed that, in terms of mortar flow, setting time, porosity, compressive strength, and chloride penetration resistance, the initial chloride content had no adverse effects up to 0.4 wt.% of the binder. Furthermore, mortars with initial chloride contents of 0-0.4 wt.% of binder exhibited a low risk of rebar corrosion.
|