University of Limerick Institutional Repository

Durability and compression properties of high‑strength concrete reinforced with steel fibre and multi‑walled carbon nanotube

DSpace Repository

Show simple item record

dc.contributor.author Yang, Jianhui
dc.contributor.author Tang, Xujun
dc.contributor.author Wang, Hongju
dc.contributor.author Wang, Qinting
dc.contributor.author Cosgrove, Tom
dc.date.accessioned 2020-06-03T10:13:33Z
dc.date.available 2020-06-03T10:13:33Z
dc.date.issued 2020
dc.identifier.uri http://hdl.handle.net/10344/8883
dc.description peer-reviewed en_US
dc.description.abstract High-strength concrete (HSC) reinforced with steel fibre (SF) and carbon nanotube (HSCRSC) is a new type of high-strength composite concrete with good fluidity, high strength, toughness, durability and other remarkable advantages. HSCRSC can be widely used in underground structures, such as wellbores. In this study, HSCs ranging from 70 to 100 MPa were designed, and the effects of fibre on the performance of the HSCs were compared and analysed through single-doped and double mixed SF and multi-walled carbon nanotubes. Results showed that the fibre effectively improved the uniaxial and multiaxial compressive strengths and durability of HSCs and changed the failure mode from brittle to ductile, especially in the case of multiaxial compression failure. HSCs remained intact, but the plain concrete specimens had fractured forms, such as flakes, columns and layers. Moreover, the ultimate strength of the biaxial compression was between 1.10 and 1.39 times higher than that of the uniaxial compression, satisfying the Kufer–Gerstle criterion. The ultimate strength of the triaxial compression was between 1.24 and 2.55 times higher than that of the uniaxial compression, adhering to the Willam–Warnke meridian criterion. The modified B3 model met the prediction accuracy of shrinkage and creep for HSC and surpassed the biaxial and triaxial compression ultimate strength models provided in this study. The absolute value of the relative error was less than 6%, indicating that the model and test data were reliable. All test results showed that HSCRSC exhibited satisfactory comprehensive performance. en_US
dc.language.iso eng en_US
dc.publisher Springer en_US
dc.relation (41172317 en_US
dc.relation.ispartofseries Iranian Journal of Science and Technology, Transactions of Civil Engineering;
dc.subject High-strength concrete en_US
dc.subject Steel fibre en_US
dc.subject Multi-walled carbon nanotubes en_US
dc.title Durability and compression properties of high‑strength concrete reinforced with steel fibre and multi‑walled carbon nanotube en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1007/s40996-020-00419-4
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


Browse

My Account

Statistics