Electrical resistivity and conductivity

Engineering

Neuroscience

Biology

Materials science

Thermal conductivity

Thermoelectric effect

Percolation (cognitive psychology)

Seebeck coefficient

Silica fume

Thermodynamics

Physics

Cement

Percolation threshold

Composite material

Fiber

Electrical engineering

Cement and Concrete Research

The Seebeck effect in carbon fiber-reinforced cement paste was found to involve electrons from the cement matrix and holes from the fibers. The two contributions were equal at the percolation threshold, with a fiber content between 0.5 and 1.0% by mass of cement. The hole contribution increased monotonically with increasing fiber content below and above the percolation threshold. The fiber addition increased the linearity and reversibility of the Seebeck effect. Silica fume and latex as admixtures had minor influence on the Seebeck effect.

Seebeck effect in carbon fiber-reinforced cement