Measurement of porosity as a predictor of the transport properties of concrete
Fluid transport through concrete takes place almost entirely through the pores. The porosity is a measure of the total pore volume and does not take account of the connectivity or tortuosity of the pores, but it would still be expected to be a good predictor of transport. This chapter introduces different methods for measuring porosity and transport. The precise mechanism involved in a ‘vapour transport’ experiment is then discussed and relationships between porosity and transport are presented.
porosity; helium intrusion; mercury intrusion; oxygen permeability; vapour transport
It is often easier and more reliable to measure the porosity ...