Self-Healing Concrete with Crystalline Admixture——A Review  

作　　者：A Ravitheja Dr T Chandra Sekhara Reddy Dr C Sashidhar 

机构地区：[1]JNTU College of Engineering,Anantapur,AP,India [2]Civil Engineering,GPR Engineering College,Kurnool,AP,India [3]Civil Engineering,JNTU College of Engineering,Anantapur,AP,India

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2019年第5期1143-1154,共12页武汉理工大学学报（材料科学英文版）

摘　　要：The scope of the present paper is to understand the effects of crystalline admixture on the selfhealing capacity of the cementitious composites. Previous studies were examined and a conclusion was drawn to the effect that different additives to crystalline admixture tend to improve self-healing of concrete for larger cracks. It is recommended that initial treatment with chemical admixture can stimulate and heal further cracks and it has the better repeatability trend in mixing with the concretes and mechanical recovery is possible even under repetitive preloading. Effective self-healing with chemical admixtures even under open-air exposure, leads to study the importance of a service ability design parameter including the maximum allowable crack width by repeatability analysis as a function of the exposure with the concept of sealable crack width.The scope of the present paper is to understand the effects of crystalline admixture on the selfhealing capacity of the cementitious composites. Previous studies were examined and a conclusion was drawn to the effect that different additives to crystalline admixture tend to improve self-healing of concrete for larger cracks. It is recommended that initial treatment with chemical admixture can stimulate and heal further cracks and it has the better repeatability trend in mixing with the concretes and mechanical recovery is possible even under repetitive preloading. Effective self-healing with chemical admixtures even under open-air exposure, leads to study the importance of a service ability design parameter including the maximum allowable crack width by repeatability analysis as a function of the exposure with the concept of sealable crack width.

关 键 词：CRYSTALLINE ADMIXTURE PERMEABILITY REDUCER ADMIXTURE CRACKING 

分 类 号：TU5[建筑科学—建筑技术科学]