On the development and studies of nano- and micro-fiber hybridized strain hardened cementitious composite

• Autorzy: Sindu B. S. , Sasmal Saptarshi

Identyfikatory

DOI

10.1016/j.acme.2018.11.008

• Języki publikacji: EN

Abstrakty

EN

In this study, strain hardened cementitious composite is developed by systematically incorporating fibers of two different length scales, viz., PVA fibers (micro-fibers) and CNTs (nano-fibers) to improve the load transfer and crack formation mechanism at their corresponding scales. At first, the influence of individual fibers on the tension associated (axial tension-, fracture- and flexure-) properties is investigated. Then, the composite is developed using hybrid fibers with appropriate dosage to cater the desired performance. The tensile strength, stiffness, strain carrying capacity and fracture energy of the developed composite is found to be improved by almost 2 times, 3 times, 220 times and 130 times respectively to that of the original cement composite. The outstanding performance of the developed composite is resulted from the effective crack bridging and preferred load transfer in micro-scale due to incorporation of (a meagre amount of) hetero fibers of distinctly different length scales. In order to investigate the fracture and crack propagation phenomenon of the developed cementitious composite, Digital Image Correlation (DIC) technique is also employed. The findings of this study will lead towards development of multi-performance cementitious composite (MPCC) by tailoring the material to attain the desired level of strength, stiffness and ductility.

Słowa kluczowe

EN

cementitious composite; carbon nanotube; PVA fibers; digital image correlation technique; strain hardening

PL

kompozyt cementowy; nanorurka węglowa; hartowanie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 2
• Strony: 348--359
• Opis fizyczny: Bibliogr. 29 poz., rys., tab., wykr.

Twórcy

autor

Sindu B. S.

• Academy of Scientific and Innovative Research (AcSIR), INDIA
• CSIR-Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai, 600113, INDIA

autor

Sasmal Saptarshi

• Academy of Scientific and Innovative Research (AcSIR), INDIA
• CSIR-Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai, 600113, INDIA

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