TY - JOUR
T1 - Enhancing the electrical conductivity of concrete using metal-organic frameworks
AU - El-Mir, Abdulkader
AU - Najm, Omar
AU - El-Hassan, Hilal
AU - El-Dieb, Amr
AU - Alzamly, Ahmed
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/4/26
Y1 - 2024/4/26
N2 - This research evaluates the electrical conductivity, mechanical characteristics, durability, and environmental viability of electrically conductive concrete (ECC) incorporating zeolitic imidazolate framework (ZIF-67) metal-organic-framework (MOF). Performance of MOF-ECC was characterized by slump, electrical conductivity/resistivity, compressive strength, water absorption, volume of permeable pore voids, and economic and environmental viability. Its performance was compared to plain concrete and counterparts made with different conductive materials, namely steel fibers, carbon fibers, graphite powder, and carbon black. Results showed that increasing the volumetric rate of conductive materials reduced the slump and required more superplasticizer to maintain consistency. Meanwhile, the addition of MOF led to equivalent or more electrically concrete compared to other materials. Compressive strength and water absorption were affected by the type and proportion of conductive material but were positively impacted by MOF incorporation. A performance index, involving electrical resistivity, mechanical characteristics, durability, and environmental viability, highlighted that ECC containing 0.5% MOF by volume was most suitable for multifunctional concrete applications.
AB - This research evaluates the electrical conductivity, mechanical characteristics, durability, and environmental viability of electrically conductive concrete (ECC) incorporating zeolitic imidazolate framework (ZIF-67) metal-organic-framework (MOF). Performance of MOF-ECC was characterized by slump, electrical conductivity/resistivity, compressive strength, water absorption, volume of permeable pore voids, and economic and environmental viability. Its performance was compared to plain concrete and counterparts made with different conductive materials, namely steel fibers, carbon fibers, graphite powder, and carbon black. Results showed that increasing the volumetric rate of conductive materials reduced the slump and required more superplasticizer to maintain consistency. Meanwhile, the addition of MOF led to equivalent or more electrically concrete compared to other materials. Compressive strength and water absorption were affected by the type and proportion of conductive material but were positively impacted by MOF incorporation. A performance index, involving electrical resistivity, mechanical characteristics, durability, and environmental viability, highlighted that ECC containing 0.5% MOF by volume was most suitable for multifunctional concrete applications.
KW - Electrically conductive concrete
KW - Fibers
KW - Metal-organic framework
KW - Performance
KW - Powders
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U2 - 10.1016/j.conbuildmat.2024.136061
DO - 10.1016/j.conbuildmat.2024.136061
M3 - Article
AN - SCOPUS:85189691722
SN - 0950-0618
VL - 425
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 136061
ER -