SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED  ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER

Oksana Larsen; Anton Bakhrakh

doi:10.62980/2076-0655-2024-304-312

UDC

691.32

CSCSTI

67.09

Russian Classification of Professions by Education

08.06.01

Russian Trade and Bibliographic Classification

Russian Library and Bibliographic Classification

VAK Russia

2.1.5

SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER

Published in Technique and technology of silicates · Pages 304–312 · Rubric: MAIN RUBRIC

DOI: https://doi.org/10.62980/2076-0655-2024-304-312 · EDN: CUDQVA

Received: 18.09.2024 Accepted: 16.10.2024 Published: 24.11.2024 Language of publication: RUS

Authors

Oksana Larsen

Anton Bakhrakh

Oksana Larsen

Academic degree: candidate of technical sciences

Science rang: docent

Nacional'nyy issledovatel'skiy Moskovskiy gosudarstvennyy stroitel'nyy universitet Associate Professor · Department of Construction Materials Science · Russian Federation

Anton Bakhrakh

NRU MGSU Russian Federation

ABSTRACT

An approach to obtaining self-sealing conductive concrete of normal hardening is presented. The results of a study of the properties of self-sealing concrete of normal hardening based on Portland cement obtained by the joint introduction of carbon black of two grades TU P-803 and TU K-354 with their mass ratio of 4:1 and volume concentration in a mixture equal to 0.25%, as well as carbon fiber with a length of 3mm in an amount of 1% by weight of cement are presented. Con-crete was obtained with a specific electrical resistance equal to 0.25 Ohms * m, which does not increase during the harden-ing process, a strength of 53 MPa at the age of 28 days, frost resistance F200, water resistance W20, tensile strength at bending 8.2 MPa. Resistive heating elements with a capacity of 600 W/m2 or more have been obtained, providing the possi-bility of obtaining coatings with an anti-icing effect. It is shown that drying concrete of the developed composition can in-crease the conductivity by 50%, which is associated with an improvement in the contact between conductive particles caused by their compression during shrinkage, the value of which decreases with an increase in the amount of carbon fiber from 0.25% to 1% by weight of cement. It is noted that with an increase in the applied voltage to the sample, its electrical resis-tivity decreases, the more the carbon fiber content is in the range of 0.25-1% of the cement weight.

KEYWORDS

Portland cement, carbon black, carbon fiber, conductivity, electrical resistivity

Funding

The work was carried out at NIU MSCU within the framework of the University Development Program “PRIORITY 2030”. Project 3.1 “Scientific breakthrough in the construction industry - new technologies, new materials, new methods”

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GOST

Larsen O. A., Bakhrakh A. M. SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER // . 2024. pp. 304-312. DOI: https://doi.org/10.62980/2076-0655-2024-304-312. EDN: CUDQVA. (Date of access 20.08.2026).

MLA

Oksana Larsen, Bakhrakh A. M.. "SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER." (2024): 304-312. DOI: https://doi.org/10.62980/2076-0655-2024-304-312. EDN: CUDQVA.

APA

Larsen O. A., Bakhrakh A. M. (2024). SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER. , 304-312. https://doi.org/10.62980/2076-0655-2024-304-312 EDN: CUDQVA.

Chicago

Oksana Larsen, Bakhrakh A. M.. "SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER." , no. (2024): 304-312. https://doi.org/10.62980/2076-0655-2024-304-312. EDN: CUDQVA.

WIKI

{{cite journal | author = Larsen O. A., Bakhrakh A. M. | title = SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER | journal = | year = 2024 | pages = 304-312 | doi = 10.62980/2076-0655-2024-304-312 }} EDN: CUDQVA

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SELF-COMPACTING CONDUCTIVE CONCRETE OF NORMAL HARDENING BASED ON PORTLAND CEMENT WITH TECHNICAL CARBON AND CARBON FIBER

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