To solve the disadvantages of weak bonding between the carbon fiber (CF) and the cement matrix, as well as the poor dispersion performance of multi-walled carbon nanotubes (MCNT) in cement paste, h...
This study focused on the evolution of hydration process of cement-based material containing high volume of dolomite powder. The hydration products, microstructure, morphology and mechanical proper...
#2Reza Karimi(IAU: Islamic Azad University)H-Index: 16
The electromagnetic wave absorption performances and the dielectric properties of multi-walled carbon nanotube (MWCNT) functionalization with carboxyl (-COOH) group/cement composites with different...
Bi2Te3 was incorporated in carbon fiber-reinforced cement composites (CFRCs) as thermoelectric-reinforced component via three different doping methods (uniformity volume mixing, gradient volume mix...
The effects of dolomite powder dosage on the fracture properties and volume stability of cement-based materials were investigated by three-point bending method and corrugated tube method, respectiv...
Abstract Cracking is inevitable in concrete due to its quasi-brittle nature. The presence of micro-cracks will not only impair concrete, but induce reinforcement corrosion by providing paths for the ingress of harmful species. In the past decades, a new technique to repair cracks automatically based on microbial induced carbonate precipitation has become attractive. This paper explored the crack healing potential of reinforced concrete incorporated with ureolytic type microbial self-healing agen...
This paper primarily investigates the effects of chemically grafted modified carbon fibers on the bonding properties of fiber metal laminates (FMLs). Relative elemental content on the carbon fibers’ surface was performed via X-ray photoelectron spectroscopy (XPS). Scanning electron microscopy (SEM) was utilized to observe the material microstructure. The effect of chemically grafted carbon fibers on the bond strengths of FMLs was experimentally investigated through lap joint testing. The carbon ...
Last. Bankim Chandra Ray(NITR: National Institute of Technology, Rourkela)H-Index: 27
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Abstract Carbon fiber reinforced epoxy (CE) composites are already in extensive use as structural materials in aerospace and marine applications owing to their inherent high specific strength. This study proposes to further improve their mechanical properties by incorporating Hydroxyl/Carboxyl functionalized carbon nanotube (CNT-OH/CNT-COOH) nanofiller onto the surface of carbon fiber. Mechanical properties of CE composites are a strong function of interfacial bond strength between carbon fiber ...
Carbon fiber mesh reinforced cement-based composites (CMCCs) have received extensive attention in the field of engineering repair and structural reinforcement due to their outstanding properties such as two-way force, rust prevention, high specific strength, and low base surface requirements. However, the development of this material has been slowed down to some extent due to the poor interfacial bonding between the carbon fiber mesh and the cement matrix. In this paper, a novel fabrication stra...
This paper presents an experimental investigation on the effect of nano-montmorillonite, carbon nanotubes, and nano calcium carbonate on autogenous shrinkage of cement based materials. Cement paste with different nano-montmorillonite dosage (1.0 wt.%, 2.0 wt.%, 3.0 wt.%), carbon nanotubes dosage (0.1 wt.%, 0.2 wt.%, 0.3 wt.%), and nano calcium carbonate dosage (1.0 wt.%, 2.0 wt.%, 3.0 wt.%) were compared with the reference group to assess the effects of nano-materials on cement paste. Results sh...
Last. Lehua Qi(NPU: Northwestern Polytechnical University)H-Index: 26
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Abstract Effective load transfer interface is critical to improving the performance of metal matrix composites (MMCs). This paper proposes fabricating CNTs-grafted C f /AZ91D composites in which the carbon fiber surface was grafted with the carbon nanotubes (CNTs) through electrophoretic deposition (EPD) process. The influence of microstructure on tensile properties of the composites was investigated by designing different experimental parameters. The fracture morphologies and SEM micrographs co...
Nano-C-S-H seed crystal, as an early strength agent for cement-based materials, has great application prospects. In order to investigate the effect of nano-C-S-H seed crystal on the early-age hydra...
#1Zhaoyang Jia(Xi'an University of Architecture and Technology)H-Index: 1
#2Jian Wei(Xi'an University of Architecture and Technology)H-Index: 6
Last. Hao Zhang(Xi'an University of Architecture and Technology)H-Index: 3
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Cement-based composites with thermoelectric effect have important application prospects in alleviating urban heat island effect, low-energy snow and ice melting on winter roads, and low-cost scale ...
Co-Fe-Mg-Al quaternary hydrotalcite-carbon nanotube composites (LDH-CNT composites) were prepared by co-precipitation method and blended into concrete. Universal testing machine and SHPB testing de...