Concrete Vaulted Construction in Imperial Rome examines methods and techniques that enabled builders to construct some of the most imposing monuments of ancient Rome. Focusing on structurally innovative vaulting and the factors that influenced its advancement, Lynne Lancaster also explores a range of related practices, including lightweight pumice as aggregate, amphoras in vaults, vaulting ribs, metal tie bars, and various techniques of buttressing. She provides the geological background of the local building stones and applies mineralogical analysis to determine material provenance, which in turn suggests trading patterns and land use. Lancaster also examines construction techniques in relation to the social, economic, and political contexts of Rome, in an effort to draw connections between changes in the building industry and the events that shaped Roman society from the early empire to late antiquity. This book was awarded the James R. Wiseman Book Award from the Archaeological Institute of America in 2007.

This book on Roman construction explains why and how Roman builders employed a set of unusual vaulting techniques and explores why each is confined to a particular area of the Empire. It is written to be accessible to advanced students as well as experts in the field.

One marker of the majesty of ancient Rome is its surviving architectural legacy, the stunning remains of which are scattered throughout the circum-Mediterranean landscape. Surprisingly, one truly remarkable aspect of this heritage remains relatively unknown. There exists beneath the waters of the Mediterranean the physical remnants of a vast maritime infrastructure that sustained and connected the western world’s first global empire and economy. The key to this incredible accomplishment and to the survival of structures in the hostile environment of the sea for two thousand years was maritime concrete, a building material invented and then employed by Roman builders on a grand scale to construct harbor installations anywhere they were needed, rather than only in locations with advantageous geography or topography. This book explains how the Romans built so successfully in the sea with their new invention. The story is a stimulating mix of archaeological, geological, historical and chemical research, with relevance to both ancient and modern technology. It also breaks new ground in bridging the gap between science and the humanities by integrating analytical materials science, history, and archaeology, along with underwater exploration. The book will be of interest to anyone interested in Roman architecture and engineering, and it will hold special interest for geologists and mineralogists studying the material characteristics of pyroclastic volcanic rocks and their alteration in seawater brines. The demonstrable durability and longevity of Roman maritime concrete structures may be of special interest to engineers working on cementing materials appropriate for the long-term storage of hazardous substances such as radioactive waste. A pioneering methodology was used to bore into maritime structures both on land and in the sea to collect concrete cores for testing in the research laboratories of the CTG Italcementi Group, a leading cement producer in Italy, the University of Berkeley, and elsewhere. The resulting mechanical, chemical and physical analysis of 36 concrete samples taken from 11 sites in Italy and the eastern Mediterranean have helped fill many gaps in our knowledge of how the Romans built in the sea. To gain even more knowledge of the ancient maritime technology, the directors of the Roman Maritime Concrete Study (ROMACONS) engaged in an ambitious and unique experimental archaeological project – the construction underwater of a reproduction of a Roman concrete pier or pila. The same raw materials and tools available to the ancient builders were employed to produce a reproduction concrete structure that appears to be remarkably similar to the ancient one studied during ROMACON’s fieldwork between 2002-2009. This volume reveals a remarkable and unique archaeological project that highlights the synergy that now exists between the humanities and science in our continuing efforts to understand the past. It will quickly become a standard research tool for all interested in Roman building both in the sea and on land, and in the history and chemistry of marine concrete. The authors also hope that the data and observations it presents will stimulate further research by scholars and students into related topics, since we have so much more to learn in the years ahead.

In this study, Marcello Mogetta examines the origins and early dissemination of concrete technology in Roman Republican architecture. Framing the genesis of innovative building processes and techniques within the context of Rome's early expansion, he traces technological change in monumental construction in long-established urban centers and new Roman colonial cites founded in the 2nd century BCE in central Italy. Mogetta weaves together excavation data from both public monuments and private domestic architecture that have been previously studied in isolation. Highlighting the organization of the building industry, he also explores the political motivations and cultural aspirations of patrons of monumental architecture, reconstructing how they negotiated economic and logistical constraints by drawing from both local traditions and long-distance networks. By incorporating the available evidence into the development of concrete technology, Mogetta also demonstrates the contributions of anonymous builders and contractors, shining a light on their ability to exploit locally available resources.

"This study enables us to appreciate more fully the technical expertise and improvements which enabled the creative spirit of the day to find such splendid embodiment". -- James Lingwood, Oxford Art Journal Copyright © Libri GmbH. All rights reserved.

Over the last 2,000 years, critical innovations have transformed small regions into global powers. But these powers have faded when they did not embrace the next big innovation. Gerard J. Tellis and Stav Rosenzweig argue that openness to new ideas and people, empowerment of individuals and competition are key drivers in the development and adoption of transformative innovations. These innovations, in turn, fuel economic growth, national dominance and global leadership. In How Transformative Innovations Shaped the Rise of Nations, Tellis and Rosenzweig examine the transformative qualities of concrete in Rome; swift equine warfare in Mongolia; critical navigational innovations in the golden ages of Chinese, Venetian, Portuguese and Dutch empires; the patent system and steam engine in Britain; and mass production in the United States of America.