Effect of Vibration Mixing on the Mechanical Properties of Carbon Nanotube-Reinforced Ultra-High-Performance Concrete

Bibliographic Details
Title: Effect of Vibration Mixing on the Mechanical Properties of Carbon Nanotube-Reinforced Ultra-High-Performance Concrete
Authors: Li Zhou, Jiangang Yin, Wei Wang, Fucai Liu, Min Xiao, Yibo Yang, Haibo Cui
Source: Buildings, Vol 14, Iss 8, p 2545 (2024)
Publisher Information: MDPI AG, 2024.
Publication Year: 2024
Collection: LCC:Building construction
Subject Terms: vibration mixing, ultra-high-performance concrete, carbon nanotubes, mechanical properties, Building construction, TH1-9745
More Details: Vibration mixing, characterized by the high-frequency vibrations of the mixing shaft, can enhance the mechanical properties of ultra-high-performance concrete (UHPC). However, the effects of vibration mixing on carbon nanotube (CNT)-reinforced UHPC have not been previously reported. To investigate the impact of vibration mixing on the properties of CNT-reinforced UHPC, a comparative study was conducted using different vibration mixing durations and twin-shaft mixing. The results indicate that for CNT-reinforced UHPC, vibration mixing achieves better flowability, higher wet apparent density, and superior mechanical properties in shorter mixing times compared to twin-shaft mixing, making it a more favorable method. Considering vibration mixing times ranging from 3 to 7 min, the optimal time was found to be 3 min, during which the axial compressive strength increased by 3.3%, the elastic limit tensile strength and tensile strength improved by 14.6% and 15.8%, respectively, and the initial cracking strength and flexural strength increased by 12.6% and 13.4%, respectively, compared to values after 10 min of twin-shaft mixing.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2075-5309
Relation: https://www.mdpi.com/2075-5309/14/8/2545; https://doaj.org/toc/2075-5309
DOI: 10.3390/buildings14082545
Access URL: https://doaj.org/article/605d7817df014280acb9db58b85b6a6d
Accession Number: edsdoj.605d7817df014280acb9db58b85b6a6d
Database: Directory of Open Access Journals
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More Details
ISSN:20755309
DOI:10.3390/buildings14082545
Published in:Buildings
Language:English