Dispersion of electrically conductive carbon fibres in self-compacting concrete using chemical and mechanical dispersing techniques

Gull, Iftekar; Tantray, Manzoor

doi:10.1504/ijmmp.2020.110527

Cited by 1 publication

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“…CF content is reduced within a certain range, and the workability of carbon fiber conductive concrete is improved. Iftekar Gull et al [20] observed that in surfactant-mixed water, a lower-speed mechanical stirring device successfully deagglomerates CF filaments without interfering with their individual morphology, resulting in a better distribution of fibers in concrete.…”

Section: Introductionmentioning

confidence: 99%

Study on the Performance of Polymer-Modified Conductive Cement-Based Materials

Li,

Zhong,

et al. 2023

Buildings

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In order to study the synergistic effect of polymer and conductive functional materials on the properties of cement-based materials, polymer conductive cement-based materials were prepared by mixing four polymer lotions of silicon–acrylate emulsion (SG), phenylacrylic emulsion (SR), waterborne epoxy resin emulsion (SH), and acrylic emulsion (SX) with carbon fiber (CF) and carbon black (CB), two conductive functional materials, in a certain proportion. The effects of the different polymer–cement ratios (P/C) of the four polymers on the physical, mechanical, and electrical properties of conductive cement-based materials were studied. The results illustrated that SH improved the fluidity of cement paste, and the four polymers all had a delaying effect, which led to the hardening of the specimens and the extension of the demoulding specimens to varying degrees. SH and SR can increase the ratio of flexural strength to compressive strength (F/C) in cement paste and improve the toughness of materials, and the maximum value is reached when the P/C is 0.15. Except for SX, the other three polymer lotions can reduce the resistivity of cement paste, which is beneficial to the improvement of conductivity. The improvement sequence is SH > SR > SG. Among them, both SH group and SR group achieved the lowest electrical resistivity at the P/C of 0.15. The four kinds of polymer lotion can significantly reduce the water absorption of the specimen and promote the waterproof performance. The improvement effect: SH > SR > SG > SX. Among them, both the SH group and SR group achieved the minimum water absorption at the P/C of 0.15.

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Section: Introductionmentioning

confidence: 99%