This report includes a number of case studies concerned with the deterioration of cement-based materials:
- Three site investigations:
- Deterioration of concrete pipework associated with popcorn calcite deposition (PCD)
- Popcorn calcite deposition (PCD) in brickwork
- Cracking of motorway underbridge abutments and walls from delayed ettringite formation (DEF), and a literature review of issues related to the possible presence of polychlorinated biphenyl (PCBs) in concrete and sealants. 27 pages.