Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an Aggregate

Titanium-containing carbide slag (TCS) is the product obtained by high-temperature carbothermal reduction in Titanium-bearing blast furnace slag (TBFS), which contains a large amount of TiC phase with excellent electrical conductivity. In this paper, conductive cement mortar was prepared with TCS as...

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Main Authors: Chenjun Tang, Ming Xuan, Kexing Deng, Songlin Ran
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/12/5/754
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author Chenjun Tang
Ming Xuan
Kexing Deng
Songlin Ran
author_facet Chenjun Tang
Ming Xuan
Kexing Deng
Songlin Ran
author_sort Chenjun Tang
collection DOAJ
description Titanium-containing carbide slag (TCS) is the product obtained by high-temperature carbothermal reduction in Titanium-bearing blast furnace slag (TBFS), which contains a large amount of TiC phase with excellent electrical conductivity. In this paper, conductive cement mortar was prepared with TCS as an aggregate and graphite as a conductive phase. The content of graphite on the compressive strength and electrical resistivity of the prepared cement mortar was investigated. The results showed that the replacement of standard sand with TCS as an aggregate not only significantly reduced the electrical resistivity of the cement mortar, but also improved its compressive strength. When the graphite content was 10 wt%, the cement mortar with TCS as the aggregate exhibited excellent comprehensive performance with the 28d compressive strength of 34.0 MPa and the electrical resistivity of 2.9 Ω m in dry condition, respectively. The results of this paper provided a new way both for the utilization of TBFS and the preparation of conductive cement mortars.
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spelling doaj.art-13a5c419d9d747d8a1caad95fba1b2f02023-11-23T12:08:49ZengMDPI AGMetals2075-47012022-04-0112575410.3390/met12050754Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an AggregateChenjun Tang0Ming Xuan1Kexing Deng2Songlin Ran3Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Ma’anshan 243002, ChinaKey Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Ma’anshan 243002, ChinaSchool of Materials Science and Engineering, Anhui University of Technology, Ma’anshan 243002, ChinaKey Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Ma’anshan 243002, ChinaTitanium-containing carbide slag (TCS) is the product obtained by high-temperature carbothermal reduction in Titanium-bearing blast furnace slag (TBFS), which contains a large amount of TiC phase with excellent electrical conductivity. In this paper, conductive cement mortar was prepared with TCS as an aggregate and graphite as a conductive phase. The content of graphite on the compressive strength and electrical resistivity of the prepared cement mortar was investigated. The results showed that the replacement of standard sand with TCS as an aggregate not only significantly reduced the electrical resistivity of the cement mortar, but also improved its compressive strength. When the graphite content was 10 wt%, the cement mortar with TCS as the aggregate exhibited excellent comprehensive performance with the 28d compressive strength of 34.0 MPa and the electrical resistivity of 2.9 Ω m in dry condition, respectively. The results of this paper provided a new way both for the utilization of TBFS and the preparation of conductive cement mortars.https://www.mdpi.com/2075-4701/12/5/754titanium-containing carbide slagtitanium-bearing blast furnace slagconductive cement mortargraphite
spellingShingle Chenjun Tang
Ming Xuan
Kexing Deng
Songlin Ran
Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an Aggregate
Metals
titanium-containing carbide slag
titanium-bearing blast furnace slag
conductive cement mortar
graphite
title Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an Aggregate
title_full Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an Aggregate
title_fullStr Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an Aggregate
title_full_unstemmed Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an Aggregate
title_short Enhanced Strength and Electrical Conductivity in Graphite-Cement Mortars with Carbonized Titanium-Bearing Blast Furnace Slag as an Aggregate
title_sort enhanced strength and electrical conductivity in graphite cement mortars with carbonized titanium bearing blast furnace slag as an aggregate
topic titanium-containing carbide slag
titanium-bearing blast furnace slag
conductive cement mortar
graphite
url https://www.mdpi.com/2075-4701/12/5/754
work_keys_str_mv AT chenjuntang enhancedstrengthandelectricalconductivityingraphitecementmortarswithcarbonizedtitaniumbearingblastfurnaceslagasanaggregate
AT mingxuan enhancedstrengthandelectricalconductivityingraphitecementmortarswithcarbonizedtitaniumbearingblastfurnaceslagasanaggregate
AT kexingdeng enhancedstrengthandelectricalconductivityingraphitecementmortarswithcarbonizedtitaniumbearingblastfurnaceslagasanaggregate
AT songlinran enhancedstrengthandelectricalconductivityingraphitecementmortarswithcarbonizedtitaniumbearingblastfurnaceslagasanaggregate