A More Realistic Study on the Mechanical Properties of CFRC Composite Grouting Material under a Long-Term Water Immersion Process

المؤلفون المشاركون

Li, Jian-Lin
Deng, Huafeng
Xiao, Yao
Assefa, Eleyas

المصدر

Advances in Materials Science and Engineering

العدد

المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2019-10-03

دولة النشر

مصر

عدد الصفحات

11

الملخص EN

The long-term effect of water immersion on the mechanical properties of CFRC composite grouting materials was studied by using five different carbon fiber contents (0, 0.25%, 0.50%, 0.75%, and 1.00%).

The direct shear and long-term immersion tests were performed based on the specified and optimum values of carbon fiber content, respectively.

The results showed the following: (1) the application of carbon fiber significantly improved the shear resistance of CRFC composite grouting material by using “reinforcing” and “anchoring” actions.

The shear strength of the specimen was increasing by 5.66%∼43.41% when the carbon fiber content increased from 0.25% to 1.00%.

After a comprehensive analysis, the optimum carbon fiber content was found to be 0.75%.

(2) The degradation in the compressive and tensile strength of CRFC composite specimens exhibited a consistent trend (i.e., a steep gradient was gradually followed by a gentle slope) under a long-term water immersion process.

About 90% of the total degradation in the compressive and tensile strength has occurred in 90 immersion days (i.e., 16.05% and 18.45%, respectively).

In comparison, the degradation in the tensile strength (20.05%) was slightly higher than the compressive strength (18.16%).

(3) Under the long-term water immersion process: the properties of the specimens were gradually deteriorating, the carbon fibers were gradually reaching a fatigue stage, and the bonding properties of carbon fiber was decreasing, which resulted in a reduction in the compressive and tensile strength.

The uniaxial compression failure mode changed from brittle to ductile, and the development of local failure was very noticeable.

Based on the findings of this paper, groundwater has a significant impact on the mechanical properties of grouted rock mass such as dam foundations and abutments.

Therefore, the degradation in the grouting materials has to be considered in practical cases.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Xiao, Yao& Deng, Huafeng& Li, Jian-Lin& Assefa, Eleyas. 2019. A More Realistic Study on the Mechanical Properties of CFRC Composite Grouting Material under a Long-Term Water Immersion Process. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1119506

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Xiao, Yao…[et al.]. A More Realistic Study on the Mechanical Properties of CFRC Composite Grouting Material under a Long-Term Water Immersion Process. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1119506

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Xiao, Yao& Deng, Huafeng& Li, Jian-Lin& Assefa, Eleyas. A More Realistic Study on the Mechanical Properties of CFRC Composite Grouting Material under a Long-Term Water Immersion Process. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1119506

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1119506