Resistance heating using electrically conductive cements
Source abstract
Abstract
Steel fibre (8 μm diameter, 0·72 vol.%)-reinforced cement was found to be effective for resistance heating. A DC electrical power input of 5·6 W (7·1 V, 0·79 A) resulted in a maximum temperature of 60°C (initial temperature = 19°C) and a time of 6 min to reach half the maximum temperature. Efficiency of energy conversion increased with time of heating, reaching 100% after 50 min. The heat power output per unit area was 750 W/m2 for steel fibre cement, compared with 340 W/m2 for a metal wire with the same resistance. The use of carbon fibres or graphite particles in place of steel fibres resulted in less effective heating, due to the higher resistivity.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Smart Materials for Construction · Advanced Energy Technologies and Civil Engineering Innovations · Icing and De-icing Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Composite Materials Research Laboratory, University at Buffalo, The State University of New York Buffalo, NY 14260-4400, USA
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