Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review

Molecules

Kaidi Long¹  Wu-Jian Long¹  Xuanhan Zhang¹  Wei Liu¹  Lixiao Li¹ 

[1] Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen Durability Center for Civil and Transportation Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China;

关键词: alkali-activated materials;    durability;    carbonation;    chloride ions attack;    enhancing method;   

DOI  :  10.3390/molecules25215074

来源: DOAJ

【 摘 要 】

Alkali-activated materials (AAMs) are widely recognized as potential alternatives to ordinary Portland cement (OPC) due to their lower carbon footprint. However, like OPC, AAMs can also generate some durable problems when exposed to aggressive environments and the mechanisms and possible improvements are still not fully clear in existing investigations. Furthermore, the corrosion mechanisms of AAMs are different from OPC due to the discrepant reaction products and pore structures. Thus, this study’s aim is to review the chemical reaction mechanisms, factors, and mitigation methods when AAMs are attacked by carbonation and chloride ions, along with a summative discussion regarding instructive insights to durable problems of AAMs.

【 授权许可】

Unknown