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APPENDIX TO CHAPTER EIGHT: A note on Roman concrete (opus caementicium) and other wall construction

ByJohn J. Dobbins

This brief discussion of Roman concrete with its various facings (opus incertum, opusquasi reticulatum, opus reticulatum and opus testaceum; Figure A8.1) and other wall construction is for readers who are new to the field and who will need this information as they read the chapters that follow.