Bio-based Self-healing Mortar: An Experimental and Numerical Study

被引：30

作者：

Tziviloglou, Eirini ^{[1
]}

Pan, Zichao ^{[2
]}

Jonkers, Henk M. ^{[1
]}

Schlangen, Erik ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Civil Engn & Geosci, Delft, Netherlands

[2] Tongji Univ, Dept Bridge Engn, Shanghai, Peoples R China

来源：

JOURNAL OF ADVANCED CONCRETE TECHNOLOGY | 2017年 / 15卷 / 09期

关键词：

CEMENTITIOUS MATERIALS; CONTINUED HYDRATION; CONCRETE; CRACKS; QUANTIFICATION; PERMEABILITY;

D O I：

10.3151/jact.15.536

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Self-healing concrete can repair itself by closing micro-cracks and thus protect itself from ingress of deleterious gasses and liquids that can affect its durability. Many self-healing concepts have been developed in the recent years which target on the recovery of water tightness after cracking. Among those systems, the bio-based healing agents have shown promising results regarding the crack sealing performance. This paper studies the crack sealing efficiency of bio-based healing mortar with expanded clay particles. The investigation of sealing performance is conducted through experimental and computational approaches. Image processing and crack permeability test results are compared with results obtained by computer simulations. The study reveals that the experimental approaches might overestimate the crack closure percentage, while the computer simulation mostly underestimates the crack sealing. Finally, recommendations are given to improve the results obtained by both methodologies.

引用

页码：536 / 543

页数：8

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