Influence of fiber orientation on the cyclic behavior of strain-hardening cement-based composites (SHCC)

Research output: Contribution to book/Conference proceedings/Anthology/Report › Conference contribution › Contributed › peer-review

Abstract

Today, the building industry makes a major contribution to global warming and increasing scarcity of resources. Hence, it is urgent to foster application of new construction materials in modern infrastructures. Such materials have a great potential to reduce the use of resources, while offering a high performance under various exposures. In this context, strain-hardening cement-based composites (SHCC) may play a prominent role since they exhibit ductile behavior under different types of mechanical loads, plus they are considered to be very durable due to the reduced ingress of deleterious materials. The last feature can be traced back to small crack widths characteristic for this type of materials. For a safe use of SHCC in the practice of construction, it is necessary to have an extensive knowledge about their mechanical performance and damage mechanisms under cyclic loading conditions. Since the fiber deterioration is strongly influenced by the fiber orientation, this parameter deserves to be closely investigated. The article at hand presents first results on the cyclic behavior of SHCC specimens with different fiber inclination angles of 0°, 30° and 60° related to the direction of tensile force. To estimate the effect of the fiber orientation, cyclic tension-swelling tests were performed. The results of monotonic, quasi-static tensile tests served as a reference. Subsequently, the crack surfaces were investigated by means of electron microscopy in order to evaluate the degradation of the polymer fibers and the surrounding cementitious matrix.

Details

Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on Fracture Mechanics of Concrete and Concrete Structures
Number of pages9
Publication statusPublished - Dec 2023
Peer-reviewedYes

Conference

TitleInternational Conference on Fracture Mechanics of Concrete and Concrete Structures 2023
Abbreviated titleFraMCoS-11
Conference number11
Duration10 - 14 September 2023
Website
Degree of recognitionInternational event
LocationIndian Institute of Science (IISc)
CityBangalore
CountryIndia

External IDs

ORCID /0000-0002-0718-5541/work/150884009
Mendeley ef0adff5-5b1b-33bc-8cbd-8e5272e1c5e8

Keywords

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