Kefei Li

Effect of moisture content on freeze–thaw behavior of cement paste by electrical resistance measurements

The electrical resistivity responses of cement pastes with different moisture content under cyclic freeze–thaw (F–T) action are presented. Different moisture content was achieved using water adsorption. Ordinary cement paste samples with water-to-cement (W/C) ratio of 0.5 were used in resistance measurements. Cyclic F–T tests show similar curves of resistivity versus temperature, but with different characteristic parameter values. Depercolation during freezing and repercolation during thawing occur, and the percolation electrical resistivity remains almost constant at around 2000 (

Electrical Resistivity of Cement Pastes Undergoing Cyclic Freeze-thaw Action

\rm \Omega \,\rm{m}

Effect of supercooling on the instantaneous freezing dilation of cement-based porous materials

Ωm). The depercolation temperature

A study of the behaviors of cement-based materials subject to freezing

\theta _{\mathrm{DPT}}

Moisture Transport Properties of Cement-Based Materials for Engineered Barriers in Radioactive Waste Disposal

θDPT is systematically higher than the repercolation temperature