Quantitative evaluation of self-healing capacity in cementitious materials

被引：3

作者：

Amenta M. ^{[1
]}

Metaxa Z.S. ^{[2
]}

Papaioannou S. ^{[1
]}

Katsiotis M.S. ^{[3
]}

Kilikoglou V. ^{[1
]}

Kourkoulis S.K. ^{[4
]}

Karatasios I. ^{[1
]}

机构：

[1] Institute of Nanoscience and Nanotechnology, N.C.S.R. Demokritos, Athens

[2] Department of Chemistry, International Hellenic University, Kavala

[3] Group Engineering Technology, TITAN Cement Company S.A., Athens

[4] Laboratory for Testing and Materials, National Technical University of Athens, Athens

来源：

Material Design and Processing Communications | 2021年 / 3卷 / 03期

关键词：

compressive strength; damage degree; healing capacity; ordinary Portland cement; self-healing; strength recovery; ultrasonic pulse velocity;

D O I：

10.1002/mdp2.152

中图分类号：

学科分类号：

摘要：

In the present study, the strength recovery of ordinary Portland cement (OPC) mortars because of the autogenic self-healing mechanism was examined following two experimental approaches: compression tests and ultrasonic pulse velocity (UPV) measurements. The focus was given on a quantitative approach for the evaluation of the inflicted damage degree and the healing capacity using experimental data. It is noteworthy that for the calculation of the healing capacity, the damage degree was taken into consideration. The results have shown that the compressive strength values can be correlated with the UPV measurements by an exponential relationship, which suggests that the use of a nondestructive technique, such as UPV, can be a fast and reliable method for the evaluation of damage degree as well as the quantification of healing capacity. Overall, it was shown that controlled damage and self-healing capacity of cementitious materials can be measured and quantified. © 2020 John Wiley & Sons, Ltd.

引用

共 7 条

[1]

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[2]

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[3]

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[7]

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