Czerewko and Cross (AECOM) have published a paper on the use of a granular construction interface to separate road pavements from underlying pyritic subgrade. The authors consider case studies and the implications for road construction where such an interface has and has not been used.
The paper, titled “Benefits of a granular interface over pyritic subgrades” follows a prior case history publication by M. Czerewko on the construction of the A46, whereby pyritic subgrade extended over much of the road scheme:
Czerewko, M.A., Cross, S.A., Dimelow, P.G., and Saadvandi, A. (2011). Assessment of pyritic Lower Lias mudrocks for earthworks.… Read the rest