A simple model for the water retention curve of compressible biocemented sands using MIP results

Biocementation treatment consists in using bacteria or other biological agents to promote the precipitation of calcium carbonate (biocement) soil pores. When used slopes for protection against surface erosion, this creates a stiff and strong pervious cover, allowing infiltration necessary reduce water runoff. The knowledge retention properties biocemented soils is fundamental modelling but it may not be easy. In paper curves two different treated sands were estimated simple model obtained from pores size distribution measured mercury intrusion porosimetry (MIP) tests. proposed considers volume changes during MIP test due compression air trapped voids. WRC derived tests fits well points dewpoint psychrometer, however possible check curve fitting below residual content lack experimental data.